Hazardous, Restricted, and Perishable Mail
Publication 52 July 1999
Transmittal Letter
A. Filing Instructions. This issue of Publication 52 replaces the April 1990 edition, which must be recycled.
B. Explanation. This publication is revised in accordance with current standards in Domestic Mail Manual (DMM) C020-C024. It is designed for use by postal employees in business mail entry, retail, and marketing who are involved in providing mailability information to postal customers regarding hazardous materials, restricted matter, and perishable matter.
C. Distribution. Order copies from the material distribution center (MDC) using PS Form 7380, MDC Supply Requisition.
D. Comments and Questions. Direct comments or questions concerning the content of Publication 52 to:
MANAGER
BUSINESS MAIL ACCEPTANCE
US POSTAL SERVICE
475 L'ENFANT PLZ SW RM 6801
WASHINGTON DC 20260-6808
E. Effective Date. This edition of Publication 52 is effective July 1999.

Anita J. Bizzotto
Vice President
Marketing Systems

Publication 52- July 1999
Contents
1 Introduction
11 Purpose
111 General
112 Use
113 Other Reference Sources
12 Scope
121 General
122 Hazardous, Restricted, and Perishable
13 Additional Information
14 Safety
15 Protecting Personnel
2 General Guidelines
21 Mailability
211 General
212 Mailer Responsibility
213 Authority
214 Appeals
215 Requests for Rulings
215.1 General
215.2 Hazardous Materials
215.3 Restricted Matter or Perishable Matter
216 Nonmailable Matter Found in the Mail
22 Marking Requirements
221 General
222 Matter Excepted From Markings
223 Hazardous Materials Warning Labels and Markings
224 Tag 44 for Hazardous Materials
225 Other Postal Labels and Tags
226 Package Orientation Markings
227 Old Markings
228 Shipping Papers
23 Handling Hazardous Materials
24 Emergency Procedures
241 General Requirements
242 Hazard Duration
243 Precautions
244 Procedures
245 Hazardous Chemical Emergencies
246 Other Emergencies
25 Basic Guidelines for Acceptance and Dispatch
251 Guidelines for Acceptance Personnel
252 Guidelines for Dispatch Personnel
3 Hazardous Materials
31 Definition
32 General
321 U.S. Department of Transportation (DOT)
322 Postal Service
323 Mailer Responsibility
324 Mailability Rulings
325 DOT Hazardous Materials Warning Labels
326 Shipping Papers
327 Transportation Requirements
327.1 General
327.2 Air Transportation Prohibitions
328 Postal Hazardous Materials Table
33 Hazard Classes
331 Nine Classes
332 Limited Quantity
333 ORM-D Materials
334 Small Quantity
334.1 Definition
334.2 Mailability
334.3 Packaging and Marking
335 Packaging Requirements for Hazardous Materials
335.1 DOT Packing Groups
335.2 Postal Packaging Instructions
336 Nonmailable Materials Found in the Mailstream
34 Mailability by Hazard Class
341 Explosives (Hazard Class 1)
341.1 Definition
341.11 Class 1 Divisions
341.12 Class 1 Compatibility Codes
341.2 Mailability, Packaging, and Marking
341.21 Nonmailable Explosives
341.22 Mailable Explosives
342 Gases (Hazard Class 2)
342.1 Definition
342.2 Mailability
342.21 Nonmailable Gases
342.22 Mailable Gases
342.3 Packaging
342.4 Marking and Documentation
342.5 Mailability Rulings
343 Flammable and Combustible Liquids (Hazard Class 3)
343.1 Definition
343.2 Mailability and Packaging
343.21 Requirements for Flammable Liquids
343.22 Requirements for Combustible Liquids
343.23 Nonmailable Flammable and Combustible Liquids
343.24 Mailable Flammable and Combustible Liquids
343.25 Cigarette Lighters
343.26 Paints, Paint Related Materials, and Inks
343.3 Marking and Documentation
344 Flammable Solids (Hazard Class 4)
344.1 Definition
344.2 Mailability
344.21 Nonmailable Flammable Solids
344.22 Mailable Flammable Solids
344.3 Packaging, Marking, and Documentation
345 Oxidizing Substances, Organic Peroxides (Hazard Class 5)
345.1 Definition
345.2 Mailability
345.21 Nonmailable Class 5 Materials
345.22 Mailable Class 5 Materials
345.3 Packaging, Marking, and Documentation
346 Toxic Substances and Infectious Substances (Hazard Class 6)
346.1 Definitions
346.11 Division 6.1, Toxic Substances
346.12 Division 6.2, Infectious Substances
346.2 Mailability
346.21 General
346.211 Division 6.1, Toxic Substances
346.212 Division 6.2, Infectious Substances
346.22 Nonmailable Class 6 Materials
346.221 Division 6.1, Toxic Substances
346.222 Division 6.2, Infectious Substances
346.23 Mailable Class 6 Materials
346.231 Division 6.1, Toxic Substances
346.232 Other Nonregulated Toxic Materials
346.233 Division 6.2, Infectious Substances
346.3 Packaging
346.31 Division 6.1, Toxic Substances
346.32 Division 6.2, Infectious Substances
346.4 Marking, Labeling, and Documentation
346.41 Division 6.1, Toxic Substances
346.42 Division 6.2, Infectious Substances
346.5 Damaged Parcels
347 Radioactive Materials (Hazard Class 7)
347.1 Definition
347.2 Mailability
347.21 Nonmailable Radioactive Materials
347.22 Mailable Radioactive Materials
347.3 Packaging
347.4 Marking
347.5 Emergency Procedures
348 Corrosives (Hazard Class 8)
348.1 Definition
348.2 Mailability
348.21 Nonmailable Corrosives
348.22 Mailable Corrosives
348.3 Packaging
348.4 Marking and Documentation
349 Miscellaneous Hazardous Materials (Hazard Class 9)
349.1 Definition
349.2 Mailability
349.21 Nonmailable Class 9 Materials
349.22 Mailable Class 9 Materials
349.23 Dry Ice
349.231 General
349.232 Characteristics and Precautions
349.233 Dry Ice Mailability
349.24 Magnetized Materials
349.241 Definition
349.242 Mailability
349.3 Packaging
349.4 Marking and Documentation
4 Restricted Matter
41 General
411 Definition
412 Mailer Responsibility
413 Rulings
414 Nonmailable Matter Found in the Mails
42 Intoxicating Liquors
421 Definition
422 Mailability
422.1 Nonmailable Matter
422.11 Intoxicating Liquors
422.12 Promotional Materials
422.2 Mailable Liquors
422.21 Products Not Categorized As Intoxicating Liquors
422.22 Exempt Mailings Between Federal and State Agencies
423 Packaging and Marking
423.1 General
423.2 Denatured Flammable or Combustible Liquor
43 Firearms
431 Definitions
431.1 Firearm
431.2 Handgun
431.3 Antique Firearm
431.4 Rifles and Shotguns
431.5 Licensed Manufacturer/Licensed Dealer
432 Mailability
432.1 General
432.2 PS Form 1508
432.3 Packaging and Marking
433 Mailer Responsibility
434 Legal Opinions on Mailing Firearms
435 Bureau of Alcohol, Tobacco, and Firearms (ATF)
436 Nonmailable Firearms Found in the Mails
44 Knives and Sharp Instruments
441 Definitions
441.1 General
441.2 Switchblade Knife
442 Mailability
443 Packaging and Marking
443.1 General
443.2 Marking
444 Nonmailable Switchblade Knives in the Mails
45 Odor-Producing Materials
46 Liquids and Powders
461 Definitions
462 Mailability
462.1 Restrictions
462.2 Cremated Remains
463 Packaging and Marking
47 Motor Vehicle Master Keys and Locksmithing Devices
471 Definitions
471.1 Motor Vehicle Master Keys
471.2 Locksmithing Devices
472 Mailability
473 Packaging and Marking
474 Nonmailable Matter Found in the Mails
48 Controlled Substances and Drugs
481 Definitions
481.1 Controlled Substances
481.2 Drugs
481.3 Drug Paraphernalia
482 Mailer Responsibility
483 Mailability
483.1 Controlled Substances
483.2 Drugs (Other Than Controlled Substances)
483.3 Poisonous Drugs and Medicines
483.4 Small Amounts for Law Enforcement Purposes
483.5 Mailable Trade-Name Drugs and Medicines
483.6 Drug Paraphernalia
484 Packaging and Marking
485 Rulings
486 Nonmailable Matter Found in the Mails
487 Undeliverable Medicines
49 Unsolicited Promotional Samples
491 Definition
492 Mailability
492.1 General
492.2 Nonmailable Promotional Samples
492.21 Abortive and Contraceptive Devices or Materials
492.22 Restricted or Improperly Prepared Items
493 Customer Objection to Unsolicited Matter
494 Rulings

5 Perishable Matter
51 Definition
52 Animals
521 General Requirements
522 Packaging and Markings
522.1 Container Construction
522.2 Security and Ventilation
522.3 Marking
523 Acceptance for Mailing
524 Disposal
525 Nonmailable Live Animals
525.1 Live Birds
525.2 Live Warm-Blooded Animals
525.3 Reptiles
525.4 Poisonous Insects and Spiders
526 Mailable Live Animals
526.1 General
526.2 Live Bees
526.21 Mailability Requirements
526.22 Claims for Bee Shipments
526.3 Live Day-Old Poultry
526.31 General
526.32 Mailability Requirements
526.33 Claims for Live Day-Old Poultry
526.4 Adult Fowl
526.41 General
526.42 Mailability Requirements
526.43 Claims for Adult Fowl
526.5 Live Scorpions
526.6 Small, Harmless, Cold-Blooded Animals
526.7 Dead Animals or Parts of Animals
53 Fresh Foods and Other Perishables
54 Eggs
55 Meats and Meat Products
56 Plants
561 General
562 Quarantines
562.1 Types of Quarantines
562.2 Specific Information
562.3 Inspection
563 Packaging and Marking
563.1 General
563.2 Securing Tops of Bundles
564 Further Information
57 Nonmailable Plant Pests, Injurious Animals, and Illegally Taken Fish or Wildlife
571 General
572 Criminal Penalties
6 International Mail
61 General
62 Hazardous Materials: International Mail
621 General Requirements
621.1 Mailing Conditions
621.2 Hazard Classes
621.3 ORM-D Materials
621.4 APO/FPO Mail
622 Mailable Hazardous Materials
622.1 General
622.2 Biological Substances, Division 6.2
622.3 Radioactive Materials, Class 7
622.4 Magnetized Materials
623 Nonmailable Hazardous Materials
63 Restricted Matter: International Mail
631 APO/FPO Mail
632 Firearms
632.1 Export To APOs/FPOs
632.2 Import
633 Knives and Sharp Instruments
634 Drugs
635 Controlled Substances
636 Other Restricted Matter
64 Perishable Matter: International Mail
641 APO/FPO Mail
642 Animals
643 Eggs
643.1 Fresh Eggs
643.2 Dried Whole Eggs
643.21 Commodity Credit Corporation Endorsement
643.22 Certificate
644 Tobacco Seeds and Tobacco Plants
644.1 General
644.2 Tobacco Plant Export Permit Markings
644.3 Tobacco Plant Export Permit Charges
645 Plants
646 Fresh Foods and Other Perishables
7 Air Transportation Requirements
71 General
72 Hazardous Materials: Air Transportation
721 General Requirements
722 Additional Requirements
722.1 APO/FPO Mail
722.2 ZIP Codes Served Only by Air Transportation
722.3 Air Transportation Prohibitions
723 Hazardous Materials Warning Labels
724 ORM-D Materials
725 Mailer Responsibility
725.1 General
725.2 Marking Requirements
725.3 Shipping Papers
725.4 Addressing
726 Postal Handling
726.1 Acceptance Personnel
726.2 Dispatch Personnel
727 Refusal by Air Carrier
727.1 Air Carrier Policy or Pilot's Decision
727.2 Handling of Mailpieces Refused by an Air Carrier
727.3 Nonmailable or Improperly Prepared Mailpieces
728 Spills and Leaks
73 Restricted Matter: Air Transportation
74 Perishable Matter: Air Transportation
741 General Requirements
742 Live Animals
742.1 Basic Conditions
742.2 Bees
742.3 Air Carrier Refusal
743 Perishable Matter with Dry Ice
Appendix A - Hazardous Materials Table: Postal Service Mailability
Guide
Appendix B - Numerical Listing of Proper Shipping Names by
Identification (ID) Number
Appendix C - USPS Packaging Instructions for Mailable Hazardous
Materials
Appendix D - Hazardous Materials Definitions
Appendix E - Conversion Factors for Units of Measure
Appendix F - References
Index
Exhibits

Exhibit 226
Package Orientation Markings
Exhibit 325a
DOT Hazardous Materials Warning Labels: PROHIBITED IN THE MAIL
Pictures of labels not available.
Exhibit 325b
DOT Hazardous Materials Warning Labels: PERMITTED ON MAILABLE HAZARDOUS
MATERIALS
Picture of labels not available.
Exhibit 326
Shipper's Declaration for Dangerous Goods (Sample Form)
Picture of form not available.
Exhibit 331
DOT Hazard Classes and Postal Mailability
Exhibit 343.21
Flammable Liquids
Exhibit 343.22
Combustible Liquids
Exhibit 346.32a
Packaging of an Infectious Substance (Etiologic Agent)
Exhibit 346.42a
Etiologic Agent/Biohazard Material Label
Exhibit 346.42b
DOT Class 6 Infectious Substance Warning Label
Exhibit 346.42c
Biohazard Symbol
Exhibit 347.22
Activity Limits for Mailable Instruments, Articles, and Limited Quantity Radioactive Materials
Exhibit 347.5c(1)
DOE Regional Coordinating Offices
Exhibit 349.242b
Warning Label for Magnetized Materials
Exhibit 432.1
Mailability Requirements for Firearms
Exhibit 435
Bureau of Alcohol, Tobacco, and Firearms Regional Offices
Exhibit 526.21
Requirements for Mailing Live Bees
Exhibit 526.32
Requirements for Mailing Live Day-Old Poultry
Exhibit 526.5
Restrictions on Mailing Live Scorpions
Exhibit 526.6
Requirements for Mailing Small, Harmless, Cold-Blooded Animals
(Except Snakes, Turtles, and Turtle Eggs)
Exhibit 526.7
Requirements for Mailing Dead Animals or Parts of Animals
Exhibit 621.1
DOT Hazard Classes and Mailability for International Mail
Exhibit 643.22
Certificate of Mailing for Dried Whole Eggs

1 Introduction
11 Purpose
111 General
The purpose of this publication is to provide supplemental information and guidance when using the mailing rules in the Domestic Mail Manual (DMM). The primary rules that apply to the mailing of hazardous materials, restricted matter, and perishable matter and that take precedent over all other postal information are found in DMM C020-C024.
112 Use
This publication is designed for use by postal personnel in business mail entry, retail units, marketing, and other functional areas that are involved with providing mailability information to postal customers. The mailing rules in the DMM along with the additional guidelines contained in this publication are to be followed when deciding whether and under which conditions hazardous materials, restricted matter, and perishable matter are permitted to be mailed.
Because the content of this publication is based on DMM standards and the regulations of federal agencies current at the time of publication, future changes to the DMM and federal regulations may supplement, amend, or supersede the content of this publication.
113 Other Reference Sources
No single postal guide could provide all the details necessary for the safe acceptance and handling of every item that is classified as hazardous material, restricted matter, or perishable matter. This publication attempts to provide general guidelines, along with specific mailability requirements, where possible for those categories of harmful materials that either present significant danger or are frequently presented for mailing.
In writing this publication, the following sources were used:
* Title 18 United States Code 1716 (18 U.S.C. 1716).
* Title 39 United States Code 3001 (39 U.S.C. 3001).
* Domestic Mail Manual (DMM) C020-C024.
* International Mail Manual (IMM) 135-139.
* Title 49 Code of Federal Regulations (49 CFR).
* Postal Operations Manual (POM).
* Administrative Support Manual (ASM).
Where appropriate within the text of this publication, the names and addresses of agencies from which more detailed information can be obtained are provided.
A complete listing of postal and nonpostal publication references is located in Appendix F.
12 Scope
121 General
The scope of this publication extends to all articles and materials that are nonmailable because they may harm persons or property coming into contact with them, or that have had mailing restrictions imposed upon them as a matter of public policy or by the regulations of other governmental agencies (see DMM C021).
Under 18 U.S.C. 1716, all matter that is outwardly or of its own force dangerous or injurious to life, health, or property is nonmailable. The knowing deposit of such matter in the mail is a crime punishable by fine, imprisonment, and/or other penalty. However, certain hazardous materials and otherwise restricted and perishable matter may be mailed under the conditions permitted in DMM C020-C024 and this publication.
122 Hazardous, Restricted, and Perishable
The following are examples of hazardous materials, restricted matter, and perishable matter. These are not complete lists, but they provide an idea of the types of articles included in each category.
a. Hazardous materials (DMM C023) include:
(1) Corrosives.
(2) Explosives.
(3) Flammable liquids and solids, combustible liquids.
(4) Gases (under pressure).
(5) Infectious substances, etiologic agents, clinical specimens, biological products, sharps, other used medical devices.
(6) Miscellaneous hazardous materials (i.e., dry ice, magnetized materials).
(7) ORM-D materials.
(8) Oxidizers, organic peroxides.
(9) Radioactive materials.
(10) Toxic substances (poisons).
b. Restricted matter (DMM C024) includes:
(1) Abortive and contraceptive devices.
(2) Battery-powered devices.
(3) Building construction materials.
(4) Controlled substances and drug paraphernalia.
(5) Firearms.
(6) Intoxicating liquors.
(7) Liquids and powders.
(8) Matter emitting obnoxious odors.
(9) Motor vehicle master keys.
(10) Nonhazardous liquids and powders.
(11) Sharp objects (knives, switchblades, stilettos).
(12) Odd-shaped items in letter-size envelopes.
c. Perishable matter (DMM C022) includes:
(1) Dead animals or parts of animals.
(2) Eggs.
(3) Live animals.
(4) Meat and meat products.
(5) Plants and plant products.
13 Additional Information
Although the Postal Service makes every effort to inform its customers of the mailability of particular harmful matter via the DMM standards and the information in this publication and others, it is the responsibility of the mailer to fully meet all requirements prior to mailing. See 212 and DMM C021 for more complete information on the responsibilities of mailers.
The authority of postal personnel to decide whether particular articles and substances presented for mailing are nonmailable due to the restrictions in DMM C020-C024 and this publication, is stated in 213 and DMM C021.
14 Safety
The handling and transport of hazardous materials, restricted matter, and perishable matter involves added levels of risk. That risk can become even greater if a nonmailable material is mailed or if the packaging of a mailable material is not adequate to prevent damage or spillage during normal handling.
Under no circumstances may any nonmailable hazardous material, restricted matter, or perishable matter be deposited for mailing. Mailable items must be packaged and labeled as required in the applicable DMM rules and the guidelines in this publication.
The Postal Service's primary purpose in requiring proper packaging, identification, and deposit of mailable hazardous materials, restricted matter, or perishable matter is to ensure the safety of our employees and the general public who may come into contact with these mailpieces. These requirements are also intended to ensure the safety of the mailstream, postal equipment, and postal facilities.
15 Protecting Personnel
All reasonable and necessary steps must be taken to protect Postal Service personnel and equipment from the effects of potentially dangerous or injurious materials or substances found in the mail, as stated in Administrative Support Manual (ASM) 223.4.

2 General Guidelines
21 Mailability
211 General
Under 18 U.S.C. 1716, all matter that is outwardly or of its own force dangerous or injurious to life, health, or property is nonmailable. The knowing deposit of such matter in the mail is a crime punishable by fine, imprisonment, and/or other penalty. However, some hazardous materials, and otherwise restricted matter or perishable matter, are permitted to be mailed when the primary requirements specified in DMM C020-C024 and the supplemental criteria in this publication are fully met.
For reasons of safety, most hazardous materials are nonmailable. DMM C023, along with Chapter 3, Appendix A, and Appendix C of this publication, provide detailed information on which hazardous materials are permitted to be mailed and the conditions that apply.
Restricted matter and perishable matter are either nonmailable or mailable only under the specific conditions stated in DMM C022 and C024, and Chapters 4 and 5 of this publication, as applicable.
The mailing conditions that apply to hazardous materials, restricted matter, and perishable matter in international mail are specified in Chapter 6. Chapter 7 contains information on the specific conditions that apply to the air transportation of mailable hazardous materials, restricted matter, and perishable matter.
212 Mailer Responsibility
The mailer is responsible for complying with all mailability statutes and regulations that apply to a specific material and needs to keep abreast of current regulations adopted by the Postal Service and other governmental agencies. See DMM C021 for a more complete statement of the responsibility of postal customers regarding the mailing of hazardous materials, restricted matter, and perishable matter.
The Postal Service disseminates information about mailing rules by publishing the DMM and IMM, and by providing this publication and others that furnish additional guidance to mailers.
213 Authority
A postmaster is granted the authority under DMM C021 to determine the mailability of restricted articles and substances. A postmaster who has determined an article or substance to be nonmailable is authorized to refuse the item from mailing. Postmasters may consult with a rates and classification service center (RCSC) in making these determinations. See DMM G042 for the RCSC addresses and telephone numbers.
214 Appeals
The rights of mailers to seek review of adverse mailability decisions involving restricted articles and substances is stated in DMM C021.
A mailer receiving an adverse decision from a postmaster may file a written appeal with the RCSC, which issues the final postal agency decision. When the initial ruling is issued by the RCSC, a mailer may appeal to the Manager, Business Mail Acceptance, USPS Headquarters, Washington, DC. See DMM G043 for mailing address.
A mailer may file a written appeal of the final postal agency decision with the USPS Recorder, Judicial Officer, under the rules of procedure in 39 CFR 953. See DMM G043 for mailing address.
215 Requests for Rulings
215.1 General
Mailability decisions are based on Postal Service statutes and regulations current at the time the ruling is issued. Therefore, over time some rulings may become obsolete or require modification to conform to changes in applicable laws and regulations. When rulings are issued, the requirements of other governmental agencies (i.e., U.S. Department of Transportation, Centers for Disease Control and Prevention) are often taken into consideration to the extent that they are consistent with Postal Service policy and authority.
Requests for rulings must contain specific items of critical information appropriate to the category of the item, as noted in 215.2 and 215.3.
215.2 Hazardous Materials
To obtain a ruling on the mailability of a specific hazardous material prior to mailing, a mailer must furnish the information required in DMM C023.1.5, and a material safety data sheet (MSDS), to the RCSC serving their location. (See Appendix D for a definition of MSDS.) Because the misspelling of even one letter of the proper shipping name for a hazardous material could change the classification requirements, the following information must be furnished when requesting a mailability ruling for a hazardous material:
a. Common and proper shipping name of the material, hazard class, and the assigned United Nations (UN) or North American (NA) identification number.
b. Chemical composition by percentage of weight.
c. Flashpoint.
d. Toxic properties.
e. Irritant action when inhaled, swallowed, or brought in contact with skin or eyes.
f. Special precautions necessary to permit handling without harm to USPS employees or damage to property or other mail.
g. Explanation of warning labels and shipping papers required by local, state, or federal regulations.
h. Proposed packaging method, including the addressing, required markings, and documentation.
i. Volume of material per mailpiece, proposed number of pieces to be mailed, class of mail, and post office(s) of mailing.
Be aware that the hazard present with chemicals and other types of hazardous materials is often not necessarily apparent. Materials classified under one hazard class can present additional or subsidiary hazards more commonly associated with a different hazard class. For example, swimming pool chemicals may cause fires or release poisonous fumes, or they may be corrosive or poisonous. Other chemicals may be cancer-causing agents and must be packaged according to the requirements for toxic substances. Therefore, it is essential when determining mailability to correctly identify the material based on the mailer-supplied documentation (i.e., MSDS and other information) and never to assume a general designation using unsubstantiated information.
215.3 Restricted Matter or Perishable Matter
To obtain a ruling on the mailability of restricted matter or perishable matter, a mailer should provide specific information to the local postmaster. This information should include the following:
a. Detailed description of the restricted matter or perishable matter.
b. Special precautions necessary to permit handling without harm to postal employees or damage to property.
c. Proposed method of packaging.
d. Explanation of any local, state, or federal regulations that apply to shipping such matter.
e. Quantity per mailpiece and per mailing, frequency of mailing, and post office(s) of mailing.
When information for restricted or perishable matter is insufficient to make a mailability determination, or when there is doubt about the mailability of a particular article, assistance can be requested from the appropriate RCSC.
216 Nonmailable Matter Found in the Mail
Certain firearms, switchblade knives, controlled substances, motor vehicle master keys, and explosive or incendiary devices are not permitted to be mailed under DMM C020-C024. When these types of nonmailable items are found in the mailstream, they must be handled in accordance with POM 139.117.
Other types of materials found in the mail that are believed to be nonmailable must be treated within the applicable conditions in DMM C010.10, POM 139.117-118, and ASM 223.4.
22 Marking Requirements
221 General
Hazardous materials and restricted or perishable matter, unless specifically excepted in 222, must be clearly identified on the address side of the mailpiece. The following requirements must be met:
a. The identity of the contents must appear, when required, on the address side.
b. The name and address of both the mailer and addressee must appear on the address side.
Other markings required by the Postal Service or other federal regulatory agencies must be affixed to the address side of any mailpiece containing hazardous material, restricted matter, or perishable matter. Required markings must be applied with a nonsoluble material or other material that cannot be rubbed off or smeared.
As stated, the contents must be disclosed to be mailable. Subsequently, the need for a mailability determination may result from a disclosure provided by a mailer at the time of mailing. Advise mailers of all applicable labeling and marking requirements to avoid rejection of the mailpiece by postal acceptance personnel or air carriers.
222 Matter Excepted From Markings
If permitted to be mailed under DMM C024, the following materials are excepted from the requirements in 221 and must be mailed with no indication or identifying marking on the outside of the parcel:
a. Controlled substances and drugs.
b. Firearms.
c. Motor vehicle master keys.
d. Switchblade knives.
223 Hazardous Materials Warning Labels and Markings
Most mailable hazardous materials fall within the ORM-D (other regulated materials) category. ORM-D materials do not require Department of Transportation (DOT) diamond-shaped hazardous materials warning labels. However, postal regulations do permit the mailing of a few hazardous materials that fall outside the ORM-D materials category. See Chapter 3, Exhibits 325a and 325b, and DMM C023 for more specific information on hazardous materials warning labels and marking requirements.
224 Tag 44 for Hazardous Materials
Any sack or other consolidation device containing a hazardous material must have a PS Tag 44, Sack Contents Warning, attached. The tag must be removed when the hazardous material is no longer in the sack or consolidation device. See Chapter 7 for more information.
225 Other Postal Labels and Tags
The Postal Service provides the following labels and tags that may be affixed to the outside of mailpieces containing live animals, bees, or perishable matter, in addition to any required markings:
a. Label 27, Bee Ware!
b. Label 28, Live Animals.
c. Tag 9, Perishable --Do Not Delay.
226 Package Orientation Markings
Outer packagings that contain a primary receptacle (and secondary packaging, if required) of a liquid or other spillable material must be packed with the closure of the primary receptacle positioned upward. The outer packaging must be plainly and legibly marked on two opposite side walls with a package orientation marking, which consists of two underlined arrows that point in the correct upright position. As an option, the two arrows may be enclosed within a rectangle. The specifications for a package orientation marking are in 49 CFR 172.312. See Exhibit 226 for examples.
Exhibit 226
Package Orientation Markings
Picture not available
Note: Either design is acceptable.
227 Old Markings
Old or nonapplicable markings remaining on reused boxes or containers must be entirely removed or completely obliterated prior to mailing.
Under 49 CFR 173.29, a container that previously held a hazardous material is considered the same as a full container of the hazardous material. For example, a container that previously held a flammable liquid, corrosive, flammable gas, toxic material, infectious substance, etc., must be considered and treated as if it still contained the hazardous material. For this reason, these types of containers must never be reused to mail other items.
228 Shipping Papers
Mailable hazardous materials eligible to be sent as Express Mail, Priority Mail, or First-Class Mail must be packaged, labeled, and appropriately documented for air transportation, as required by federal regulations and DMM C023. Mailable hazardous materials sent via air transportation (except clinical specimens and biological products eligible under 346.2 and DMM C023.8.4) must be accompanied with a shipper's declaration for dangerous goods that is completed in triplicate and signed by the mailer. See 326 and Exhibit 326 for more information.
Advise mailers they must comply with this requirement in order to avoid air carrier rejection of a mailpiece based on failure to provide shipping papers. Also see Chapter 7 for more information on air transportation requirements and air carrier refusals of mailable items.
23 Handling Hazardous Materials
A potentially dangerous situation always exists when hazardous materials, restricted matter, or perishable matter is being moved from one place to another. Careless handling can result in serious injury to the general public and postal personnel, damage to other mail and postal equipment, and delays in processing and delivery of mail. Specific guidelines on how to properly handle these materials during postal handling are contained in Memorandum of Policy OS-04-21-98, Hazardous Materials and Dangerous Goods in the Mail, and the POM.
24 Emergency Procedures
241 General Requirements
Incidents involving the release of hazardous materials, restricted matter, or perishable matter are potentially serious and can cause death, injury, and property damage. Incidents can be avoided or minimized if appropriate preventive measures are taken or correct emergency procedures followed. The guidelines for responding to emergency situations are found in Management Instruction (MI) EL-810-96-1, Response to Hazardous Materials Releases, and Handbook EL-812, Hazardous Materials and Spill Response. These guidelines must be followed by all postal employees involved in the flow of mailpieces containing harmful matter, from the point of deposit to the point of delivery.
242 Hazard Duration
In general, remember that exposure to the effects from damage, spillage, or leakage of harmful matter frequently is not obvious or readily apparent. For example, infectious substances, radioactive material, corrosives, and poisons can cause illnesses or injuries that become known to the victim gradually and only long after the incident.
243 Precautions
During any spill or leak incident, or when damage is detected involving harmful items, postal personnel must take every precaution to protect personnel and property from visible and invisible effects of the material involved. These procedures are to be followed:
a. Identify harmful properties of the material and precautions to be taken.
b. Provide adequate personal protection to employees who must handle materials.
c. Contain and transport leaking containers for disposal.
d. Clean and decontaminate facilities and machinery.
e. Refer to MI EL-810-96-1, Response to Hazardous Materials Releases, and Handbook EL-812, Hazardous Materials and Spill Response, for specific instructions.
244 Procedures
During any incident involving harmful matter where there is actual or suspected damage to a mailpiece or its contents, the following general guidelines apply. The specific procedures to be used by postal personnel are in Handbook EL-812, Hazardous Materials and Spill Response:
a. Isolate the damaged package immediately and restrict the area. If the incident occurs in a facility or on the equipment of an air carrier, immediately brief the carrier on the nature and quantity of the materials released.
b. Contact the supervisor or designated qualified employee, who can take prompt and appropriate measures to protect life and prevent injury, loss, or damage. If mail sealed against inspection must be opened for this purpose, act in accordance with ASM 274.
c. Remove any injured or contaminated person from the area with as little physical contact as possible:
(1) Limit any first aid to what is absolutely necessary until a qualified physician is present.
(2) Direct all personnel exposed to radioactive materials to wash all exposed body areas immediately with cold water and immediately report to a physician for an examination.
d. Contact the fire department, the police, a qualified physician, and/or the appropriate agencies equipped to handle specific situations.
e. Keep out of smoke, fumes, or dust. Segregate any clothing or tools used in fighting fires until they can be checked for contamination.
f. Do not eat, smoke, or drink in the affected area.
g. Do not place involved areas in service until the proper authorities have determined that the areas are free of all contamination.
h. Notify the nearest RCSC or postal inspector, as appropriate in POM 139.117-118 (see 216). A report must be made for any incident that includes damage to mail or property, or injury to personnel. PS Form 1770, Hazardous Materials Incident Report, must be completed and forwarded in accordance with instructions on the form.
i. Comply with reporting procedures outlined in Memorandum of Policy OS-04-21-98, Hazardous Materials and Dangerous Goods in the Mail, for reporting hazardous materials incidents that occur while materials are being transported as mail aboard an aircraft.
245 Hazardous Chemical Emergencies
CHEMTREC (Chemical Transportation Emergency Center) is a service of the Chemical Manufacturers Association that provides immediate information and advice 24 hours a day, 7 days a week, for those at the scene of transportation emergencies involving chemicals. CHEMTREC also follows up by promptly contacting the shipper of the chemicals involved for more detailed assistance.
Postal Service personnel are authorized to telephone CHEMTREC day or night, toll-free, at 800-424-9300. For calls originating within the state of Virginia or outside the continental United States, telephone 703-527-3887. CHEMTREC usually can provide hazard guidance and information warnings when given only the name of the product and the nature of the problem, but they do not provide on-site emergency response. Before contacting CHEMTREC for assistance, obtain as much of the following information as possible:
a. Consignee (sender).
b. Container type.
c. Local conditions.
d. Location of problem.
e. Your full name and a call-back telephone number where you can be reached.
f. Shipper or manufacturer of the material.
246 Other Emergencies
The following is a reference list of telephone hotline numbers (for use during normal business hours unless otherwise noted) related to other types of emergencies:
U.S. DEPARTMENT OF TRANSPORTATION (DOT)
NATIONAL RESPONSE CENTER (For Chemical and Oil Spills)
202-267-2675 (within Washington DC)
800-424-8802 (outside Washington DC)
CENTERS FOR DISEASE CONTROL AND PREVENTION (CDC)
(For Etiologic Agents and Biohazard Materials)
404-639-3883 (Day)
404-633-5313 (Night)
AMERICAN CROP PROTECTION ASSOCIATION
202-296-1585
25 Basic Guidelines for Acceptance and Dispatch
251 Guidelines for Acceptance Personnel
Postal personnel may not open mail sealed against inspection except under the circumstances described in ASM 274. Accordingly, knowledge of the content of such mail may be obtained directly from the mailer (i.e., a mailer may ask questions about mailing requirements or mark the outside of the mailpiece to indicate the contents) or indirectly through leakage or other escape of the contents. Subject to the applicable restrictions, acceptance personnel must:
a. Determine the mailability of all hazardous materials, perishable matter, or otherwise restricted matter offered for mailing at a retail unit or business mail entry unit (BMEU).
b. If the contents are mailable, determine the specific quantity limitations, labeling, and packaging requirements that apply.
c. Refuse to accept any material (as permitted in POM 139) that does not meet the applicable DMM requirements for mailing (see DMM C021) and refer the circumstances to your local postmaster or RCSC for a mailability ruling under 213 or 215, as appropriate.
d. If the parcel containing the hazardous material is in a pouch or sack, PS Tag 44 must be attached to ensure the sack will be emptied at the processing point. Dispatch all mailable hazardous materials as stated in Memorandum of Policy OS-04-21-98, Hazardous Materials and Dangerous Goods in the Mail, and the POM.
See Chapter 7 for the acceptance personnel guidelines when handling hazardous materials, restricted matter, or perishable matter to be transported by air.
252 Guidelines for Dispatch Personnel
The following guidelines for postal dispatch personnel are general in nature. Specific dispatch procedures for postal operational employees are in Memorandum of Policy OS-04-21-98, Hazardous Materials and Dangerous Goods in the Mail, and the POM.
a. Make sure that the hazardous material, restricted matter, or perishable matter is given proper handling to avoid damage or danger.
b. Tender to the air carrier only those mailpieces that are properly packaged and marked. Before a shipment is tendered to a carrier, make sure that:
(1) A proper and strong packaging method is used.
(2) A secure method of package closure is used, and there is no visual evidence of leakage or damage. (If damage is detected, isolate the damaged mailpiece and notify the appropriate personnel in case of accident or incident and for proper spill response.)
(3) The outer packaging bears all required markings and/or labels.
(4) A properly completed shipping paper is attached to the outside of the mailpiece and to the dispatch document. The shipping paper must include the information detailed in 326 and Exhibit 326.
(5) If the mailpiece contains a material believed to be nonmailable, treat it in accordance with POM 139.117-118, as appropriate.
See Chapter 7 for more information regarding the air transportation of mailable hazardous materials, restricted matter, or perishable matter.
3 Hazardous Materials
31 Definition
A hazardous material is any article or substance designated by the U.S. Department of Transportation (DOT) as being capable of posing an unreasonable risk to health, safety, or property during transportation. In international commerce, hazardous materials are known as "dangerous goods." For definitions of other terms that relate to hazardous materials, refer to Appendix D.
32 General
321 U.S. Department of Transportation (DOT)
The U.S. Department of Transportation (DOT) is the federal agency responsible for regulating the carriage of hazardous materials within the United States via any mode of transportation (i.e., highway, rail, air, water). The federal regulations of DOT are codified in Title 49 Code of Federal Regulations (49 CFR). 49 CFR contains DOT's detailed specifications for packaging, marking, and labeling hazardous materials. Title 49 also exempts or establishes other requirements for limited quantities and small quantities of hazardous materials.
322 Postal Service
The carriage of U.S. Mail by the Postal Service is regulated by Title 39 Code of Federal Regulations (39 CFR) and is not subject to the federal regulations in 49 CFR as commercial carriers are. Unlike the commercial carriers, the Postal Service is, however, subject to the restrictions in Title 18 United States Code 1716 (18 U.S.C. 1716), which prohibits from mailing all matter that is outwardly or of its own force dangerous to life, health, or property (see 211). Accordingly, for legal and safety reasons, the postal mailing standards for hazardous materials in DMM C023 and this publication not only closely adhere to 49 CFR, but also include many additional limitations and prohibitions. In many instances, the postal standards are more restrictive than the requirements of other commercial carriers. For example, 49 CFR allows commercial shippers to send flammable materials by air, but the Postal Service prohibits the mailing of all flammable materials via air transportation.
As a result, most hazardous materials are nonmailable. The postal regulations generally limit the mailing of hazardous materials to ORM-D materials as defined in 333. Although most mailable hazardous materials fall within the ORM-D category, postal regulations do permit the mailing of a small number of hazardous materials having a greater handling and transportation risk than ORM-D materials. This allowance is limited to the following:
a. Toy propellant devices and safety fuses in Division 1.4S as permitted in 341.22 and DMM C023.2.0.
b. Toxic substances in Division 6.1 that have an LD50 for oral toxicity of greater than 5 mg/kg but less than 50 mg/kg as permitted in 346.231 and DMM C023.7.0.
c. Infectious substances (etiologic agents) and medical wastes in Division 6.2 as permitted in 346.23 and DMM C023.8.0.
d. Radioactive materials in Class 7 that fall within the specific activity limits permitted in 347 and Exhibit 347.22.
e. Dry ice and magnetized materials in Class 9 as permitted in 349 and DMM C023.11.0.
323 Mailer Responsibility
Full responsibility rests with the mailer to comply with all postal and nonpostal laws and regulations in the mailing of hazardous material. Anyone who mails, or causes to be mailed, a nonmailable or improperly packaged hazardous material can be subject to legal penalties (i.e., fines and/or imprisonment), including but not limited to those specified in 18 U.S.C. The transport of hazardous materials prior to entry as U.S. Mail is subject to DOT regulations.
324 Mailability Rulings
For information on how to request a mailability ruling for a specific hazardous material, see 215.2 and DMM C023.1.5.
325 DOT Hazardous Materials Warning Labels
In commerce, packages containing hazardous materials (except those qualifying as an ORM-D material or a limited quantity shipment) must display the appropriate DOT diamond-shaped hazardous materials warning label. Any mailpiece bearing, or required under 49 CFR to bear, one of the warning labels shown in Exhibit 325a is prohibited from mailing. The warning labels shown in Exhibit 325b may appear only on mailpieces containing mailable hazardous materials that require use of the label under postal requirements. (The labels shown in the exhibits are not shown to size. DOT warning labels must meet the size and color requirements in 49 CFR 172.407 to 172.446.)

Exhibit 325a
DOT Hazardous Materials Warning Labels: PROHIBITED IN THE MAIL
Pictures of labels not available
Exhibit 325b
DOT Hazardous Materials Warning Labels: PERMITTED ON MAILABLE HAZARDOUS MATERIALS
Picture of labels not available.

326 Shipping Papers
A shipping paper is defined as a shipping order, bill of lading, waybill, manifest, or any other document used to identify a hazardous material being offered for transport. The requirements on how to properly prepare shipping papers are detailed in 49 CFR 172.200 through 172.204. The shipping paper must be affixed to the outside of the mailpiece. A plastic envelope or carrier can be used for this purpose. The following conditions also apply:
a. Air Transportation. Most mailable hazardous materials (including ORM-D materials) must be accompanied by a shipper's declaration for dangerous goods (i.e., shipping paper). The document must be properly completed and signed in triplicate by the mailer. A sample form is shown in Exhibit 326. To determine which mailable hazardous materials require a shipping paper when sent via air transportation, refer to the appropriate sections in this chapter, the appropriate Packaging Instruction in Appendix C, and DMM C023.
b. Surface Transportation. A mailpiece containing a mailable hazardous material other than an ORM-D material must be accompanied by a properly prepared shipping paper.
Neither DOT nor the Postal Service makes blank shipper's declaration forms available to shippers of hazardous materials. It is the responsibility of the shipper to obtain forms meeting the format specifications in 49 CFR from commercial printers or vendors. The shipper is also responsible for properly completing the form prior to mailing.
327 Transportation Requirements
327.1 General
a. Air Transportation. Mailable hazardous materials eligible for air transportation must be sent as Express Mail, Priority Mail, or First-Class Mail, as permitted. Mailpieces must be prepared to meet all requirements that apply to air transportation, regardless of whether the parcel will be transported by air by the Postal Service. Mailpieces must be properly packaged and labeled within DMM requirements and the operator variations of the air carrier. When required, a shipper's declaration for dangerous goods must be affixed to the outside of the mailpiece. Refer to the Technical Instructions for the Safe Transport of Dangerous Goods by Air of the International Civil Aviation Organization (ICAO) for air carrier operator variations.
Note: Mailable hazardous materials that are prohibited from air transportation may not be sent at the Express Mail, Priority Mail, or First-Class Mail rates.
b. Surface Transportation. All mailable hazardous materials eligible to be sent at the Standard Mail rates must be prepared under the requirements that apply to surface transportation. A mailpiece containing a mailable hazardous material with postage paid aStandard Mail rate must not, under any circumstance, be transported on air transportation.
Exhibit 326
Shipper's Declaration for Dangerous Goods (Sample Form)
Picture of form not available

327.2 Air Transportation Prohibitions
The following types of hazardous materials are prohibited from transport via aircraft (i.e., Express Mail, Priority Mail, or First-Class Mail rates) under any circumstances:
a. Anything susceptible to damage or that can become harmful because of changes in temperature or atmospheric pressures unless protected against the effects of such changes.
b. Magnetic material that has a field strength sufficient to cause a compass deviation at a distance of 7 feet or more from any point on the outer packaging.
c. Flammable materials (gases, liquids, and solids).
d. Radioactive materials.
e. Hazardous materials excluded from air shipment by the regulations of 49 CFR 100-185, or by the applicable country or air carrier operator variations.
328 Postal Hazardous Materials Table
Appendix A, "Hazardous Materials Table: Postal Service Mailability Guide," contains a modified version of the DOT Hazardous Materials Table found in 49 CFR 172.101. Appendix A lists the hazardous materials from 49 CFR and identifies eligibility for mailing in the domestic mail via air and surface transportation. The table can be used to determine the mailability of a hazardous material if the proper shipping name of the material is known. When only the UN number is known, Appendix B, "Numerical Listing of Proper Shipping Names by Identification (ID) Number," can be used to locate a proper shipping name for cross referencing back to Appendix A.
The mailability information in Appendix A is based on DMM C023, the guidelines in this publication, and past postal mailability rulings. The table does not include specific information for international mail because almost all hazardous materials are prohibited in international mail. See Chapter 6 for the specific requirements that apply to international mail.
33 Hazard Classes
331 Nine Classes
Every hazardous material is assigned to one of nine hazard classes as defined in 49 CFR 172.101 and 173. The nine hazard classes are as follows:
a. Class 1: Explosives.
b. Class 2: Gases.
c. Class 3: Flammable and Combustible Liquids.
d. Class 4: Flammable Solids.
e. Class 5: Oxidizing Substances, Organic Peroxides.
f. Class 6: Toxic Substances and Infectious Substances.
g. Class 7: Radioactive Materials.
h. Class 8: Corrosives.
i. Class 9: Miscellaneous Hazardous Materials.
Some of the nine classes are further separated into divisions based on their physical or chemical properties, as shown in Exhibit 331.
Exhibit 331 (p. 1)
DOT Hazard Classes and Postal Mailability

Domestic Mail
Class Name of Hazard Class
(and Division when applicable) Air
Transportation Surface Transportation International
Mail
1 Explosives
Division 1.1: Mass Explosive Hazard Prohibited Prohibited Prohibited
Division 1.2: Projection Hazard Prohibited Prohibited Prohibited
Division 1.3: Fire and/or Minor Blast/Minor Projection Hazard Prohibited Prohibited Prohibited
Division 1.4: Minor Explosion Hazard Prohibited Only with prior HQ approval per 341 Prohibited
Division 1.5: Very Insensitive With Mass Explosion Hazard Prohibited Prohibited Prohibited
Division 1.6: Extremely Insensitive; No Mass Explosion Hazard Prohibited Prohibited Prohibited
2 Gases
Division 2.1: Flammable Gases Prohibited Only ORM-D material per 342 Prohibited
Division 2.2: Nonflammable Gases Only ORM-D material per 342 Only ORM-D material per 342 Prohibited
Division 2.3: Toxic Gases Prohibited Prohibited Prohibited
3 Flammable and Combustible Liquids
All Flammable Liquids Prohibited Only ORM-D material per 343 Prohibited
All Combustible Liquids Only ORM-D material per 343 Only ORM-D material per 343 Prohibited
4 Flammable Solids
Division 4.1: Flammable Solids Prohibited Only ORM-D material per 344 Prohibited
Division 4.2: Spontaneously Combustible Prohibited Only ORM-D material per 344 Prohibited
Division 4.3: Dangerous When Wet Prohibited Only ORM-D material per 344 Prohibited
5 Oxidizing Substances, Organic Peroxides
Division 5.1: Oxidizing Substances Only ORM-D material per 345 Only ORM-D material per 345 Prohibited
Division 5.2: Organic Peroxides Only ORM-D material per 345 Only ORM-D material per 345 Prohibited

Exhibit 331 (p. 2)
DOT Hazard Classes and Postal Mailability

Domestic Mail
Class Name of Hazard Class
(and Division when applicable) Air
Transportation Surface Transportation International
Mail
6 Toxic Substances and Infectious Substances
Division 6.1: Toxic Substances ORM-D material per 346; other poisons as permitted in 346.231 ORM-D material per 346; other poisons as permitted in 346.231 Prohibited
Division 6.2: Infectious Substances Only as permitted in 346 Only as permitted in 346 Only registered air letters per 622
7 Radioactive Material Prohibited Only per 347 Only registered air letters per 622
8 Corrosives (Liquids And Solids) Only ORM-D material per 348 Only ORM-D material per 348 Prohibited
9 Miscellaneous Hazardous Materials ORM-D material and other materials as permitted in 349 ORM-D material and other materials as permitted in 349 Prohibited, except for magnetized materials per 349 and 622.4
332 Limited Quantity
A limited quantity of a hazardous material is the maximum amount of a specific hazardous material exempted from the DOT labeling or packaging requirements in 49 CFR. To be eligible to be shipped under DOT's limited quantity provision, a hazardous material must be authorized an exemption in column 8A of the Hazardous Materials Table in 49 CFR 172.101. Not every hazardous material is eligible to be shipped as a limited quantity.
Under postal mailing rules, a material meeting the eligibility criteria for shipment as a limited quantity is mailable only if it can be further reclassed as an ORM-D material (see 333). Not every hazardous material permitted to be shipped as a limited quantity can qualify as an ORM-D material. Those that cannot are not eligible for mailing, except as specifically permitted in DMM C023 and this publication.
333 ORM-D Materials
Some of the hazardous materials that qualify under the limited quantity provision are permitted a further exemption in 49 CFR 172.101 (column 8A) to be reclassified as an ORM-D material under 49 CFR 173.144 and renamed with the proper shipping name "Consumer Commodity," which is defined in Appendix D. A mailable ORM-D material is additionally subject to the mailability and quantity limits in DMM C023 and this publication, as applicable.
Most mailable hazardous materials fall within the ORM-D category. ORM-D materials present the lowest level of risk during transportation. The ORM-D category is unique to the United States. Its use is prohibited with international shipments of hazardous materials.
It is the responsibility of the mailer to know the correct hazard class of a hazardous material prior to mailing (see 323). In those instances where assistance is needed to determine eligibility for mailing, the mailer may request a ruling from the RCSC (see 215.2 and DMM C023.1.5).
334 Small Quantity
334.1 Definition
A small quantity is the maximum amount of a specific hazardous material that is not subject to any DOT requirements (i.e., packaging, marking, labeling) other than those in 49 CFR 173.4. Not every hazardous material is eligible to be shipped as a small quantity. Additionally, for postal purposes Class 7 materials are not permitted to be sent as a small quantity.
The DOT small quantity provision, like the DOT ORM-D category, is unique to the United States. Its use is prohibited with international shipments of hazardous materials and cannot be used in international mail.
334.2 Mailability
Hazardous materials in Class 3, Division 4.1, Division 4.2 (Packing Groups II and III only), Division 4.3 (Packing Groups II and III only), Division 5.1, Division 5.2, Division 6.1 (Packing Groups II and III only), Class 8, and Class 9 are eligible to be sent in the domestic mail under the small quantity provision only when each primary receptacle is limited to the following quantity, as applicable:
a. 30 ml (1 oz) or less for liquids other than Division 6.1 (Packaging Group I) materials.
b. 30 g (1 oz) or less for solids other than Division 6.1 (Packaging Group I) materials.
c. 1 g (0.04 oz) or less for Division 6.1 (Packing Group I) materials.
334.3 Packaging and Marking
Hazardous materials eligible to be shipped under the small quantity provision permitted in 49 CFR and 334.2 must be prepared following Packaging Instruction 10A in Appendix C. Each mailpiece that qualifies to be sent under the small quantity provision must be clearly marked on the address side with the following words: "This package conforms to 49 CFR 173.4.Inches
335 Packaging Requirements for Hazardous Materials
335.1 DOT Packing Groups
Hazardous materials in Classes 1, 3-6, and 8-9 are assigned to a DOT packing group based on the degree of danger presented by the material during transport. The packing group assigned to a hazardous material is listed in column 5 of the Hazardous Material Table in 49 CFR 172.101 and in column (d) of Appendix A. Packing Group I indicates a great danger, Packing Group II a medium danger, and Packing Group III a minor danger.
335.2 Postal Packaging Instructions
For mailing purposes, the packaging of a mailable hazardous material must follow the appropriate Packaging Instruction in Appendix C. The correct Packaging Instruction to use for a specific hazardous material can be determined using Appendix A.
Mailers may not package or combine hazardous materials assigned to different hazard classes within a single mailpiece unless permitted by postal standard.
336 Nonmailable Materials Found in the Mailstream
When any mailpiece containing a nonmailable hazardous material is found in the mailstream, the procedures in POM 139.117 must be followed if the materials present an immediate threat to persons or property. The procedures in POM 139.118 are followed when there is no immediate threat to persons or property.
34 Mailability by Hazard Class
341 Explosives (Hazard Class 1)
341.1 Definition
An explosive is any substance or article, including a device, that is designed to function by explosion (i.e., an extremely rapid release of gas and heat) or that, by chemical reaction within itself, is able to function in a similar manner even if not designed to function by explosion, unless the substance or article is otherwise classed under the provisions in 49 CFR.
341.11 Class 1 Divisions
Hazard Class 1 has six divisions as follows:
a. Division 1.1 consists of explosives that have a mass explosion hazard. Examples are black powder, nitroglycerine (desensitized), dynamite, most types of torpedoes, and mercury fulminate.
b. Division 1.2 consists of explosives that have a projection hazard but not a mass explosion hazard. Examples are certain types of fireworks, some types of detonating fuses, and some types of ammunition.
c. Division 1.3 consists of explosives that have a fire hazard and either a minor blast or minor projection hazard or both, but not a mass explosion hazard. Examples are sodium picramate, some liquid and solid propellants, and some rocket motors.
d. Division 1.4 consists of explosives that present a minor blast hazard. Examples are common fireworks, toy caps, empty primed grenades, and some small arms ammunition.
e. Division 1.5 consists of very insensitive explosives that have a mass explosion hazard. Examples are type E blasting agents, some type B blasting agents, and very insensitive explosive substances.
f. Division 1.6 consists of extremely insensitive articles that do not have a mass explosion hazard.
341.12 Class 1 Compatibility Codes
Each division in Class 1 is further assigned a compatibility group code. The compatibility code consists of one letter (A-H, J-L, N, or S) that is positioned after the division number (e.g., 1.1A, 1.2C, 1.4S, etc.) and refers to the transportation and storage controls necessary to prevent potential hazards. See 49 CFR 173.52 for a more detailed description of the Class 1 compatibility codes.
341.2 Mailability, Packaging, and Marking
Explosives are generally prohibited from mailing under 18 U.S.C. 1716. The following conditions apply to the mailing of explosives:
a. International Mail. All explosives are prohibited.
b. Domestic Mail via Air Transportation. All explosives are prohibited.
c. Domestic Mail via Surface Transportation. Generally, explosives are prohibited. The only exceptions are for Division 1.4S toy propellant devices and safety fuses that have been approved by the Manager, Business Mail Acceptance, USPS Headquarters, Washington, DC prior to mailing as stated in 341.22 and DMM C023.2.0.
341.21 Nonmailable Explosives
Nonmailable explosives found in the mailstream must be immediately reported in accordance with POM 139.117.
Nonmailable explosives include, but are not limited to, the following:
a. Common Fireworks. Fireworks are classified as Division 1.1, 1.2, 1.3, or 1.4 explosives depending on the degree of hazard. Fireworks include roman candles, skyrockets, helicopter-type rockets, cylindrical and cone fountains, pyrotechnic wheels, illuminating torches, firecrackers, salutes, and combinations of items that are designed to produce any of the aforementioned types of effects. All types of fireworks are prohibited from mailing.
b. Fuses. Fuses are classified as Division 1.3 or 1.4 explosives depending on the degree of hazard. All types of fuses (except safety fuses as permitted under 341.22) are prohibited from mailing.
c. Small Arms Ammunition. Ammunition is classified as a Division 1.1, 1.2, 1.3, or 1.4 explosive depending on the degree of hazard. Ammunition that is regulated as a Class 1 explosive and designed to be fired from a pistol, revolver, rifle, or shotgun, as well as associated primers and blank cartridges (including those designed for tools) and propellant powder for use in any firearm, is prohibited from mailing.
341.22 Mailable Explosives
The following specific types of explosives may be mailed only when the applicable conditions are met. Full responsibility rests with the mailer to comply with DOT and Bureau of Alcohol, Tobacco, and Firearms (ATF) regulations before mailing.
a. Toy Propellant Devices. The proper shipping name for a toy propellant device is "model rocket motor" or "igniters." A toy propellant device assigned UN0454 or NA0323 and classed as a Division 1.4S explosive is eligible for mailing in domestic mail via surface transportation only when prior written permission has been obtained from the Manager, Business Mail Acceptance, USPS Headquarters, Washington, DC. A device approved for mailing is subject to the following conditions:
(1) Each device must be ignitable by electrical means only; contain no more than 62.5 g (2.23 oz) of propellant; and produce less than 80 newton seconds of total impulse with thrust duration not less than 0.050 second.
(2) Each device must be constructed so that all chemical ingredients are preloaded into a cylindrical paper or similarly constructed nonmetallic tube that does not fragment into sharp, hard pieces; must be designed so that it will not burst under normal conditions of use; must be incapable of spontaneous ignition under 500 degrees F; and must not contain any type of explosive or pyrotechnic warhead other than a small, activation-charge parachute- recovery system.
(3) Each mailpiece containing approved devices must be prepared for mailing following Packaging Instruction 1A in Appendix C. A shipper's declaration for dangerous goods is required.
b. Safety Fuses (UN0105). Safety fuses consist of a core of black powder overspun with yarns, waterproofing compounds, and/or tapes. Safety fuses assigned UN0105 as a Division 1.4S explosive may be mailed in domestic mail via surface transportation only when prior written approval has been granted by the Manager, Business Mail Acceptance, USPS Headquarters, Washington, DC. Mailable safety fuses must be prepared using Packaging Instruction 1B in Appendix C. A shipper's declaration for dangerous goods is required.
Note: "Fuses" are not to be confused with "fusees." Fusees are rail and highway distress signals that are nonmailable Class 4 flammable solids.
c. Shotgun Hulls, Empty Casings, Nonmetallic Shotgun Hulls, or Casings Without Primers. These articles are not classified as explosives or hazardous materials under 49 CFR, and therefore are mailable subject to the applicable mailing rules.
342 Gases (Hazard Class 2)
342.1 Definition
Hazard Class 2 consists of three divisions:
a. Division 2.1, Flammable Gases. A material that is a gas at 68 degrees F (20 degrees C) or less and 14.7 psi (101.3 kPa) of pressure. Flammable gases also include materials that have a boiling point of 68 degrees F (20 degrees C) or less at 14.7 psi (101.3 kPa) and that are ignitable at 14.7 psi (101.3 kPa) when in a mixture of 13 percent or less by volume with air or that have a flammable range at 14.7 psi (101.3 kPa) with air of at least 12 percent regardless of the lower limit. These conditions must be established in accordance with ASTM E681-85, Standard Test Method for Concentration Limits of Flammability of Chemicals, or other approved equivalent method. The flammability of aerosols must be determined using the tests specified in 49 CFR 173.306(i).
b. Division 2.2, Nonflammable, Nontoxic Gases. A material that does not meet the definition of Division 2.1 or 2.3 and exerts in its packaging an absolute pressure of 40.6 psia (280 kPa) or greater at 68 degrees F (20 degrees C).
c. Division 2.3, Toxic Gases. A material that is poisonous by inhalation and is a gas at 68 degrees F (20 degrees C) or less and a pressure of 14.7 psi (101.3 kPa), or a material that has a boiling point of 68 degrees F (20 degrees C) or less at 14.7 psi (101.3 kPa).
342.2 Mailability
The following conditions apply to the mailing of gases:
a. International Mail. All gases are prohibited.
b. Domestic Mail via Air Transportation. Flammable gases in Division 2.1 and toxic gases in Division 2.3 are prohibited. Nonflammable gases in Division 2.2 are generally permitted if the material can qualify as an ORM-D material and meet the quantity limitations and packaging requirements in 342.3 and 342.4.
c. Domestic Mail via Surface Transportation. Toxic gases in Division 2.3 are prohibited. Flammable gases in Division 2.1 and nonflammable gases in Division 2.2 are generally permitted if the material can qualify as an ORM-D material and meet the quantity limitations and packaging requirements in 342.3 and 342.4.
342.21 Nonmailable Gases
When any gas that is nonmailable is discovered in the mailstream, the procedures in POM 139.117 must be followed if the materials present an immediate threat to persons or property. The procedures in POM 139.118 are followed when there is no immediate threat to persons or property.
The following are some specific types of nonmailable gases:
a. Cigarette Lighters (NA1226). Generally, lighters charged with fuel and having an ignition system or any similar heating, lighting, or ignition device are a Class 3 flammable liquid and are nonmailable. However, if an approval number is obtained from DOT, consideration for mailing may be requested from the RCSC manager under the provisions in 343.24 and DMM C023.4.4.
b. Oxygen, Refrigerated Liquid. Liquid oxygen (UN1073) is prohibited from mailing under any circumstances.
c. Fire Extinguishers. The following types of fire extinguishers are prohibited from mailing:
(1) Fire extinguishers (UN1044) that have sulfuric acid in inside containers surrounded by bicarbonate of soda or chlorosulfonic acid in hermetically sealed bottles enclosed within metal containers.
(2) Fire extinguishers (UN0275, UN0276, UN0323, or UN0381) that contain propellant explosives.
Note: See 342.22 for mailable types of fire extinguishers.
d. Toxic Gases. All Division 2.3 toxic gases are prohibited from mailing.
342.22 Mailable Gases
The following are examples of mailable gases:
a. Butane. Butane (UN1011) and Receptacles, small (UN2037) with butane or butane mixtures are Division 2.1 flammable gases. Butane gases that can qualify as ORM-D materials are acceptable only in domestic mail via surface transportation when properly prepared under 342.3 and Packaging Instruction 2A in Appendix C.
b. Oxygen, Compressed. Oxygen (UN1072) is a Division 2.2 nonflammable gas and is acceptable in domestic mail only if it can be reclassified as an ORM-D material. The requirements in 342.3 and Packaging Instruction 2B in Appendix C must be followed.
c. Propane. Propane is a Division 2.1 flammable gas and is acceptable in domestic mail via surface transportation only if it can be reclassified as an ORM-D material. The requirements in 342.3 and Packaging Instruction 2A in Appendix C must be followed. Propane is nonmailable in domestic mail via air transportation.
d. Fire Extinguishers. Extinguishers that contain a Division 2.2 nonflammable compressed gas and are assigned UN1044 are mailable if they do not contain methyl bromide gas mixtures and the contents are held in DOT specification 2P or 2Q containers. Only one extinguisher per mailpiece is permitted, and the compressed gas
contained within the fire extinguisher must be nonflammable, nonpoisonous, or noncorrosive as required under 49 CFR 173.309(a). The requirements in Packaging Instruction 2B in Appendix C must be followed.
Note: Fire extinguishers assigned UN1774 are mailable as Class 8 corrosives subject to the limitations for corrosives in 348 and DMM C023.10.0.
e. Empty Compressed Gas Containers. Empty used containers of compressed gas are mailable subject to the same restrictions that applied when the container was filled (because residual amounts of the hazardous material might remain present). Empty, unused (i.e., new) containers are mailable without restriction.
f. Aerosol Paint Products. Aerosol paint products that are defined as flammable compressed gases are acceptable in the domestic mail via surface transportation only if they can qualify as ORM-D materials and meet the quantity limitations and applicable packaging requirements in 342.3, 342.4, and DMM C023.3.0.
g. Other Mailable Gases. Materials whose contents are under pressure, such as carbonated beverages, biological/medical products, cosmetics, foodstuffs and soaps, electronic tubes, and audible fire alarm systems (except for any that may contain poisonous gases or others that may be specifically excluded by 49 CFR 173.306), are acceptable in the domestic mail as follows:
(1) Carbonated Beverages. These items are not regulated as hazardous materials and are acceptable without restriction. Carbonated beverages must be properly packaged under DMM C010.
(2) Biological Products or Medical Preparations. A product or preparation in a nonrefillable metal primary receptacle charged with a nonflammable solution (containing a biological product or a medical preparation that heat could deteriorate) may be accepted for domestic surface mail only, provided the conditions in Packaging Instruction 2F in Appendix C are followed.
(3) Foodstuffs and Soaps. These materials are mailable provided the conditions in Packaging Instruction 2D in Appendix C are met.
(4) Electronic Tubes. These materials are mailable without restriction if the volume is 30 cubic inches or less and the tube is charged with gas to a pressure of 35 psig or less. Such tubes must be packed in a strong outer container and meet the general packaging requirements in DMM C010.
(5) Audible Fire Alarm Systems. An audible fire alarm system powered by a compressed gas is acceptable in the domestic mail via surface transportation provided the conditions for Packaging Instruction 2E in Appendix C are followed.
342.3 Packaging
Mailable compressed gases must be packaged to protect valves and fittings and to ensure integrity of the primary receptacle during transport. Containers must use recessed valves, screw thread caps, tap closures, or other means to prevent accidental discharge.
The following conditions apply:
a. Nonmetal Containers. A mailable gas is acceptable in an other-than-metal primary receptacle if the water capacity is 4 fluid ounces (7.22 cubic inches) or less. Packaging Instruction 2A or 2B, as applicable, must be followed.
b. Metal Containers. Mailable nonflammable and flammable compressed gases are acceptable in metal primary receptacles that have a water capacity up to 33.8 fluid ounces (1 liter or 61.0 cubic inches). The liquid content of the material and the gas must not completely fill the primary receptacle at 130 degrees F (55 degrees C). Additionally, the following apply:
(1) A DOT 2P container must be used if the internal pressure is from 140 psig to 160 psig at 130 degrees F (55 degrees C).
(2) A DOT 2Q container must be used if the pressure is from 161 psig to 180 psig at 130 degrees F (55 degrees C).
(3) A container with an internal pressure over 180 psig at 130 degrees F (55 degrees C) is prohibited from mailing.
(4) Packaging Instruction 2A or 2B, as applicable, must be followed.
c. Flammable Gases. A mailable flammable compressed gas is restricted to 4 fluid ounces in a nonmetal primary receptacle or 33.8 fluid ounces (1 liter) in a metal primary receptacle per mailpiece. Multiple primary receptacles are not permitted. Packaging Instruction 2A must be followed.
d. Nonflammable Gases. A mailable nonflammable gas is permitted in individual 4 fluid ounce nonmetal primary receptacle(s) or 33.8 fluid ounce (1 liter) metal primary receptacle(s). Multiple primary receptacles may be securely packed within a single strong outer packaging up to a weight of 66 pounds (30 kg) per mailpiece, unless otherwise prohibited. Packaging Instruction 2B must be followed.
342.4 Marking and Documentation
For air transportation, parcels containing mailable gases must be plainly and durably marked on the address side with "ORM-D AIR" immediately following or below the proper shipping name (i.e., Consumer Commodity). A properly completed shipper's declaration for dangerous goods prepared in triplicate must be affixed to the outside of the mailpiece.
For surface transportation, parcels containing mailable gases must be plainly and durably marked on the address side with "Surface Mail Only" and "ORM-D" immediately following or below the proper shipping name (i.e., consumer commodity). A shipper's declaration for dangerous goods is not required for mailable gases sent via surface transportation.
342.5 Mailability Rulings
In addition to the information required in 215.2 and DMM C023.1.5, requests for mailability rulings on gases and products containing compressed gases need to include the following information:
a. Documentation indicating whether or not the contents are a flammable mixture when dispersed.
b. The internal pressure within the primary receptacle at 70 degrees F (21 degrees C) and 130 degrees F (55 degrees C).
c. Documentation as to whether or not the liquid contents completely fill the container at 70 degrees F (21 degrees C) and 130 degrees F (55 degrees C).
d. The bursting strength of the primary receptacle.
e. The capacity of the primary receptacle and the number of primary receptacles proposed to be packed within a single mailpiece.
f. The design methods intended to prevent accidental discharge of the contents.
343 Flammable and Combustible Liquids
(Hazard Class 3)
343.1 Definition
The terms used in the standards that apply to Hazard Class 3 are defined as follows:
a. Flammable Liquid means a liquid that has a flashpoint of not more than 141 degrees F (60.5 degrees C), or any material in a liquid phase that has a flashpoint at or above 100 degrees F (38 degrees C).
b. Combustible Liquid means any liquid that does not meet the definition of any other hazard class and has a flashpoint above 141 degrees F (60.5 degrees C) and below 200 degrees F (93 degrees C). A flammable liquid with a flashpoint at or above 100 degrees F (38 degrees C) that does not meet the definition of any other hazard class may be reclassified as a combustible liquid per 49 CFR 173.120(b).
Note: A liquid with a flashpoint above 200 degrees F (93 degrees C) is not regulated as a hazardous material and may be mailed subject to the general packaging requirements in DMM C010 provided it possesses no characteristics of another hazard class.
343.2 Mailability and Packaging
343.21 Requirements for Flammable Liquids
The following conditions apply:
a. International Mail. Flammable liquid is prohibited.
b. Domestic Mail via Air Transportation. Flammable liquid is prohibited.
c. Domestic Mail via Surface Transportation. Flammable liquid with a flashpoint of 20 degrees F (-7 degrees C) or below is prohibited. Other flammable liquid is permitted if the material can qualify as an ORM-D material and meet the criteria in Exhibit 343.21. A mailable flammable liquid must be prepared according to Packaging Instruction 3A in Appendix C, as applicable.
Exhibit 343.21
Flammable Liquids

Flashpoint Mailability
20 degrees F (-7 degrees C) or below Not acceptable for mailing.
Above 20 degrees F (-7 degrees C)
but not more than 73 degrees F (23 degrees C) Acceptable (with restrictions) for domestic mail via surface transportation only. Follow requirements for Packaging Instruction 3A in Appendix C, as applicable.
Above 73 degrees F (23 degrees C)
but less than 100 degrees F (38 degrees C) Acceptable (with restrictions) for domestic mail via surface transportation only. Follow requirements for Packaging Instruction 3A in Appendix C, as applicable.
100 degrees F (38 degrees C) and up
to 141 degrees F (60.5 degrees C) Acceptable (with restrictions) for domestic mail via surface transportation only. Follow requirements for Packaging Instruction 3A or 3B in Appendix C, as applicable.
Note: If the flashpoint is between 100 degrees F (38 degrees C) and 141 degrees F (60.5 degrees C), the liquid may be eligible to be reclassed as a combustible liquid.
Over 141 degrees F (60.5 degrees C) See combustible liquids in 343.22. Follow requirements for Packaging Instruction 3A in Appendix C.

343.22 Requirements for Combustible Liquids
The following conditions apply:
a. International Mail. Combustible liquid is prohibited.
b. Domestic Mail via Air Transportation. Combustible liquid is permitted if the material can qualify as an ORM-D material and meet the criteria in Exhibit 343.22. Packaging Instruction 3B in Appendix C must be followed, as applicable.
c. Domestic Mail via Surface Transportation. Combustible liquid is permitted if the material can qualify as an ORM-D material and meet the criteria in Exhibit 343.22. Packaging Instruction 3B in Appendix C must be followed, as applicable.

Exhibit 343.22
Combustible Liquids

Flashpoint
Mailability
Below 100 degrees F (38 degrees C)
Not a combustible liquid. See flammable liquids in 343.21.
100 degrees F (38 degrees C) but not more than 141 degrees F (60.5 degrees C)
A flammable liquid that may be eligible to be reclassified as a combustible liquid under 49 CFR 173.120(b). See 343.1b. Acceptable (with restrictions) in domestic mail via surface transportation only. Follow requirements for Packaging Instruction 3B in Appendix C, as applicable.
Above 141 degrees F (60.5 degrees C) but not more than 200 degrees F (93 degrees C)
Acceptable (with restrictions) for domestic mail via air transportation or surface transportation. Follow requirements for Packaging Instruction 3B in Appendix C, as applicable.

Note: Liquids having a flashpoint above 200 degrees F (93 degrees C) are acceptable without restrictions for domestic mail via air or surface transportation. See 343.1.
343.23 Nonmailable Flammable and Combustible Liquids
When flammable liquids and combustible liquids that are nonmailable under 343.21 or 343.22 and DMM C023.4.0 are found in the mailstream, the procedures in POM 139.117 must be followed if the materials present an immediate threat to persons or property. The procedures in POM 139.118 are to be followed when there is no immediate threat to persons or property.
The following materials are nonmailable:
a. All flammable liquids having a flashpoint of 20 degrees F (-7 degrees C) or below are prohibited from mailing.
b. Gasoline (UN1203) is a flammable liquid that normally has a flashpoint of -50 degrees F. Gasoline is nonmailable under any circumstances.
343.24 Mailable Flammable and Combustible Liquids
The following are mailable:
a. Paint or a related item (UN1263) classified as a flammable or combustible liquid is generally acceptable for mailing provided the material can qualify as an ORM-D material and is sent within the quantity limitations and packaging requirements stated in 343.21 or 343.22, as applicable. Also see 343.26. Mailpieces must be prepared following Packaging Instruction 3A or 3B in Appendix C, as applicable.
b. Latex Paint or a similar water-based paint product that is not flammable or combustible is not regulated as a hazardous material, and therefore is not restricted. Also see 343.26. Mailpieces must be properly packaged under DMM C010.
c. Canned Heat (Sterno) is a flammable liquid that normally has a flashpoint from 40 degrees F (4 degrees C) to 80 degrees F (27 degrees C). It is permitted only in domestic mail via surface transportation provided the liquid can qualify as an ORM-D material and is sent within the quantity limitations and packaging requirements stated in 343.21. Mailpieces must be prepared following Packaging Instruction 3A in Appendix C.
d. Cigarette Lighter Fluid is a flammable liquid that normally has a flashpoint between 20 degrees F (-7 degrees C) and 55 degrees F (13 degrees C). It is permitted only in domestic mail via surface transportation provided the fluid can qualify as an ORM-D material and is sent within the conditions of 343.21 and 343.25. Mailpieces must be prepared following Packaging Instruction 3C in Appendix C.
e. Diesel Fuel (NA1993) is a combustible liquid that normally has a flashpoint between 110 degrees F (43 degrees C) and 190 degrees F (88 degrees C). It is acceptable for mailing provided the fluid can qualify as an ORM-D material and the liquid is sent within the conditions in 343.22. Mailpieces must be prepared following Packaging Instruction 3B in Appendix C.
f. Fuel Oil (NA1993) is a flammable liquid that normally has a flashpoint below 100 degrees F (38 degrees C). The specific flashpoint must be accurately identified by the mailer before a mailability determination can be made. Fuel oil is acceptable in the domestic mail via surface transportation only provided the liquid can qualify as an ORM-D material and is sent within the conditions of 343.21 or 343.22, as applicable. Mailpieces must be prepared following Packaging Instruction 3A in Appendix C.
g. Adhesives and Cements (UN1133) that are classified as flammable or combustible liquids are mailable only if the material can qualify as an ORM-D material and the applicable conditions in 343.21 or 343.22 are met. Mailpieces must be prepared following Packaging Instruction 3A or 3B in Appendix C, as applicable.
Note: Some adhesives and cements are extremely toxic and may be classified as Division 6.1 toxic substances. Division 6.1 materials are mailable only as permitted in 346.21.
h. Cleaning Agents and Solvents that are classified as flammable liquids are mailable only if the material can qualify as an ORM-D material and the applicable conditions in 343.21 can be met. Mailpieces must be prepared following Packaging Instruction 3A in Appendix C.
Note: Some cleaning agents and solvents are extremely toxic and/or corrosive and may be classified as either a Division 6.1 toxic substance or a Class 8 corrosive. Division 6.1 toxic materials and Class 8 corrosives are permitted only within the conditions of 346.21 and 348.2, respectively.
i. Model Fuel (for glow plug engines) is a flammable liquid that has a flashpoint ranging from 65 degrees F to 75 degrees F. It is acceptable only in the domestic mail via surface transportation provided the material can qualify as an ORM-D material and the applicable conditions in 343.21 are met. Mailpieces must be prepared following Packaging Instruction 3A in Appendix C.
j. Waxes and Polishes have a wide range of flashpoints. The flashpoint and toxicity must be accurately identified by the mailer before mailability can be determined. Any waxes or polishes that are flammable or combustible liquids are permitted to be mailed provided the material can qualify as an ORM-D material and the applicable conditions in 343.21 and 343.22 are met. Mailpieces must be prepared following Packaging Instruction 3A or 3B in Appendix C, as applicable.
343.25 Cigarette Lighters
A cigarette lighter equipped with an ignition element and containing fuel is classified as a Class 3 flammable liquid. A cigarette lighter containing a flammable gas is classed as a Division 2.1 flammable gas. A cigarette lighter that contains either flammable liquid or flammable gas is permitted only in the domestic mail via surface transportation with prior written approval and within these conditions:
a. The design of the lighter and its packaging are approved by the DOT Associate Administrator for Hazardous Material Safety, per 49 CFR 173.21(i) and 173.308, and a DOT Approval Number (T-Number) is issued.
b. The prospective mailer of the lighter submits to the appropriate RCSC manager a written request for authorization to mail the lighter, accompanied by a legible photocopy of the official DOT notice conveying the approval described in 343.25a, along with a specimen of the actual lighter, the packaging materials in which each lighter is to be mailed, and the number of mailpieces and mailing location; and the mailer receives from the RCSC manager a letter approving the requested authorization for mailing.
c. The packaging must be designed to protect the lighter's sparking mechanism from accidental ignition caused by friction or external pressure during transport. Packaging Instruction 3C in Appendix C must be followed.
d. When presented for mailing, the address side of the mailpiece must prominently display the proper shipping name "Lighter for Cigarette" followed by the T-Number, and the marking "Surface Mail Only"; all preparation and packaging requirements in the RCSC manager's approval letter must be met; and a legible photocopy of the RCSC manager's approval must accompany the mailing at the time of deposit.
e. A shipper's declaration for dangerous goods is not required.
343.26 Paints, Paint Related Materials, and Inks
The following definitions apply:
a. Paint (UN1263) is the proper shipping name and description for paint, lacquer, enamel, stain, shellac, varnish, liquid aluminum, liquid bronze, liquid gold, liquid wood filler, and liquid lacquer base. Paint related material (UN1263) is the proper shipping name and description for a paint-thinning, paint-drying, paint-reducing, or paint-removing compound. See 343.24a and b for mailability.
b. Inks are defined as colored liquids used for writing, drawing, etc., and liquids and pastes used in printing. Printing inks usually are mixtures of finely divided pigments, such as carbon black suspended in a drying oil. Inks having hazardous characteristics are generally classified as combustible or flammable liquids and are mailable provided they can qualify as an ORM-D material and meet the applicable requirements in 343.21 or 343.22. Mailpieces must be prepared using Packaging Instruction 3A or 3B in Appendix C, as applicable. In addition, the following conditions apply:
(1) Regardless of the size or type of container, the primary receptacle(s) containing inks must be cushioned with sufficient absorbent material to take up all liquid contents in case of leakage.
(2) The primary receptacle(s) and the absorbent cushioning material must be packed within a sealed, leakproof outer packaging.
(3) Inks that are flammable or combustible liquids must meet the quantity restrictions, packaging requirements, and air or surface transportation conditions that apply under 343.2.
Note: Inks that do not possess any hazardous characteristics are not regulated as hazardous materials and are mailable if properly prepared under the requirements for packaging liquids in DMM C010.
343.3 Marking and Documentation
For air transportation, parcels containing mailable Class 3 materials must be plainly and durably marked on the address side with "ORM-D AIR" immediately following or below the proper shipping name (i.e., Consumer Commodity). A properly completed shipper's declaration for dangerous goods prepared in triplicate must be affixed to the outside of the mailpiece.
For surface transportation, parcels containing mailable Class 3 materials must be plainly and durably marked on the address side with "Surface Mail Only" and "ORM-D" immediately following or below the proper shipping name (i.e., consumer commodity). A shipper's declaration for dangerous goods is not required for mailable Class 4 materials sent via surface transportation.
Cigarette lighters must be marked as specified in 343.25.
344 Flammable Solids (Hazard Class 4)
344.1 Definition
Hazard Class 4 consists of three divisions:
a. Division 4.1, Flammable Solids. Any solid material other than one classed as an explosive that, under conditions normally incident to transportation, is likely to cause fires through friction or retained heat from manufacturing or processing, or that can be ignited readily and, when ignited, burns so vigorously and persistently as to create a serious transportation hazard.
b. Division 4.2, Spontaneously Combustible. A liquid or solid pyrophoric material that even in small amounts and without an external ignition source can ignite within 5 minutes after coming in contact with air, or a self-heating material that when in contact with air and without an energy supply is liable to self-heat.
c. Division 4.3, Dangerous When Wet. A material that, by contact with water, is likely to become spontaneously flammable or to give off flammable or toxic gas at a rate greater than 1 liter per kilogram of the material per hour.
Examples of flammable solids include certain metallic hydrides, metallic sodium and potassium, oily fabrics, processed metals, matches, and nitrocellulose products.
344.2 Mailability
The following conditions apply:
a. International Mail. All flammable solids are prohibited.
b. Domestic Mail via Air Transportation. All flammable solids are prohibited.
c. Domestic Mail via Surface Transportation. A flammable solid that can qualify as an ORM-D material is permitted.
344.21 Nonmailable Flammable Solids
When flammable solids that are nonmailable under 344 and DMM C023.5.0 are found in the mailstream, the procedures in POM 139.117 must be followed if the materials present an immediate threat to persons or property. The procedures in POM 139.118 are followed when there is no immediate threat to persons or property.
Strike-anywhere matches are nonmailable in international mail and domestic mail. Safety matches (book, card, or strike-on-box) are nonmailable in international and domestic mail via air transportation.
344.22 Mailable Flammable Solids
The following are mailable:
a. Flammable solids that are eligible to be reclassed as ORM-D materials are permitted in the domestic mail via surface transportation.
b. Safety matches (book, card, or strike-on-box) are permitted only in domestic mail via surface transportation.
344.3 Packaging, Marking, and Documentation
The following conditions apply:
a. Mailable Flammable Solids. The conditions in Packaging Instruction 4A in Appendix C must be followed. Mailpieces containing mailable Class 4 materials must be plainly and durably marked on the address side with "ORM-D" immediately following or below the proper shipping name (i.e., Consumer Commodity). A shipper's declaration for dangerous goods is not required.
b. Matches. The conditions in Packaging Instruction 4B in Appendix C must be followed. Mailpieces must be plainly and durable marked on the address side with "Surface Mail Only" and, as applicable, "Book Matches," "Strike-on-Card Matches," or "Card Matches." A shipper's declaration for dangerous goods is not required.
345 Oxidizing Substances, Organic Peroxides
(Hazard Class 5)
345.1 Definition
Hazard Class 5 consists of two divisions:
a. Division 5.1, Oxidizing Substances. A material that may, generally by yielding oxygen, cause or enhance the combustion of other materials.
b. Division 5.2, Organic Peroxides. Any organic compound that contains oxygen in the bivalent structure and that may be considered a derivative of hydrogen peroxide, where one or more of the hydrogen atoms have been replaced by organic radicals.
Examples of Class 5 materials (not all of which are mailable) include ferric nitrate, hydrogen peroxide, lead perchlorate, lithium nitrate, organic peroxide solids or liquids, and some swimming pool chemicals.
345.2 Mailability
The following conditions apply:
a. International Mail. All oxidizing substances and organic peroxides are prohibited.
b. Domestic Mail via Air or Surface Transportation. An oxidizing substance or an organic peroxide that can qualify as an ORM-D material is permitted.
345.21 Nonmailable Class 5 Materials
When nonmailable Class 5 materials are found in the mailstream, the procedures in POM 139.117 must be followed if the materials present an immediate threat to persons or property. The procedures in POM 139.118 are followed when there is no immediate threat to persons or property.
The following Class 5 materials are nonmailable:
a. Division 5.1, Oxidizing Substances.
(1) Calcium chlorite.
(2) Chlorine dioxide hydrate, frozen.
(3) Hydrogen peroxide solution (more than 20 percent).
(4) Perchloric acid.
(5) Potassium peroxide.
(6) Sodium chlorite.
(7) Tetranitromethane.
(8) Zinc ammonium nitrate.
b. Division 5.2, Organic Peroxides. Organic peroxides are nonmailable unless they can qualify as ORM-D materials.
345.22 Mailable Class 5 Materials
The following Class 5 materials are mailable:
a. ORM-D Material. A Division 5.1 or 5.2 material that can be reclassified as an ORM-D material is mailable within the requirements in 345.2b.
b. Hydrogen Peroxide. There are no restrictions on Division 5.1 hydrogen peroxide solutions up to 8 percent. Solutions of hydrogen peroxide exceeding 8 percent and up to 20 percent are permitted if they can qualify as an ORM-D material.
345.3 Packaging, Marking, and Documentation
All mailable Division 5.1 and 5.2 materials must be prepared following the conditions for Packaging Instruction 5A in Appendix C.
For air transportation, a parcel containing a mailable Division 5.1 or 5.2 material must be plainly and durably marked on the address side with "ORM-D AIR" immediately following or below the proper shipping name (i.e., Consumer Commodity). A properly completed shipper's declaration for dangerous goods prepared in triplicate must be affixed to the outside of the mailpiece.
For surface transportation, a parcel containing a mailable Division 5.1 or 5.2 material must be plainly and durably marked on the address side with "Surface Mail Only" and "ORM-D" immediately following or below the proper shipping name (i.e., consumer commodity). A shipper's declaration for dangerous goods is not required for a mailable Division 5.1 or 5.2 material sent via surface transportation.
346 Toxic Substances and Infectious Substances (Hazard Class 6)
346.1 Definitions
Hazard Class 6 consists of two divisions:
a. Division 6.1 includes toxic substances and poisons. Examples of Division 6.1 materials (not all of which are mailable) include bromobenzyl cyanide, methyl bromide, motor fuel antiknock mixtures, and tear gas.
b. Division 6.2 includes infectious substances. Examples of Division 6.2 materials include infectious substances (etiologic agents), biological products, clinical or diagnostic specimens, and medical waste.
346.11 Division 6.1, Toxic Substances
The following terms are used in the standards for Division 6.1 materials:
a. Toxic Substance is a poisonous material, other than a gas, that is known to be so toxic to humans as to cause death, injury, or harm to human health if swallowed, inhaled, or brought into contact with skin.
b. Oral Toxicity refers to a liquid with a lethal dose (LD50) for acute oral toxicity of not more than 500 mg/kg or a solid with an LD50 for acute oral toxicity of not more than 200 mg/kg that when administered by mouth is likely to cause death within 14 days in half of the test animals.
c. Dermal Toxicity refers to a material with an LD50 for acute dermal toxicity of not more than 1,000 mg/kg that, when administered by continuous contact with bare skin, is most likely to cause death within 14 days in half of the test animals.
d. Inhalation Toxicity applies to a dust or mist with a lethal concentration (LC50) for acute inhalation toxicity of not more than 10 mg/L, or a saturated vapor concentration in air at 68 degreesF (20 degreesC) of more than one-fifth of the LC50 for acute toxicity on inhalation of vapors and with an LC50 for acute inhalation toxicity of vapors of not more than 5,000 ml/m3, that when administered by continuous inhalation for 1 hour is most likely to cause death within 14 days in half of the test animals.
e. Irritating Material is any liquid or solid substance (e.g., tear gas) that gives off intense fumes and causes extreme but reversible localized irritant effects on the eyes, nose, and throat, temporarily impairing a person's ability to function. No extremely toxic substance is included in this category.
346.12 Division 6.2, Infectious Substances
The following terms are used in the standards for Division 6.2 materials:
a. Infectious Substance (etiologic agent) means a viable microorganism, or its toxin, that causes or may cause disease in human beings or animals, and includes those agents listed in 42 CFR 72.3 and any other agent that causes or may cause severe, disabling, or fatal disease. The terms "infectious substance" and "etiologic agent" are synonymous.
b. Clinical (Diagnostic) Specimen means any human or animal material including, but not limited to, excreta, secreta, blood, blood components, tissue, and tissue fluids that have been collected and are being mailed to a medical or forensic laboratory for the purpose of diagnosis, or are being mailed from a medical or forensic laboratory for return to a law enforcement agency.
c. Biological Product means a material derived from a living organism that is prepared and manufactured in accordance with 9 CFR 102-104 (licenses for biological products; experimental products, distribution, and evaluation prior to licensing; and permits for biological products), 21 CFR 312 (investigational new drug application), or 21 CFR 600-680 (biologics) and that, under such provisions, may be shipped in interstate commerce. Biological products include, but are not limited to, materials such as vaccines.
d. Sharps means any item of medical waste having a projecting cutting edge or fine point that was used in animal or human patient care or treatment, or in medical research or industrial laboratories. The term includes, but is not limited to, hypodermic needles, syringes (with or without the attached needles), pasteur pipettes, scalpel blades, blood vials, needles with attached tubing, and culture dishes (regardless of whether infectious agents are present). Also included are other types of broken or unbroken glassware that were in contact with infectious agents, such as used slides or cover slips. The term does not include new, unused medical devices such as hypodermic needles, syringes, and scalpel blades.
e. Other Used Medical Devices means all materials or devices used in animal or human patient care or treatment or in medical research that are not, or do not contain, a projecting sharp and are not known or not reasonably believed to contain an infectious substance (etiologic agent).
346.2 Mailability
346.21 General
346.211 Division 6.1, Toxic Substances
a. International Mail. All Division 6.1 toxic substances or poisons and all irritating materials are prohibited.
b. Domestic Mail via Air or Surface Transportation. Irritating materials are prohibited. A Division 6.1 toxic substance or poison that can qualify as an ORM-D material is permitted if all applicable conditions in 346 are met. Other poisonous materials are permitted to be mailed only between authorized parties under specific conditions as specified in 346.231b.
346.212 Division 6.2, Infectious Substances
a. International Mail. Infectious and noninfectious biological substances are permitted in international mail only when sent as registered airmail letter packages and sent between the authorized senders and receivers with prior approval. See Chapter 6 and IMM 135 for specific requirements. Infectious substances are prohibited in international mail via surface transportation.
b. Domestic Mail via Air Transportation. Infectious substances (i.e., etiologic agents), clinical specimens, and biological products are permitted only when they are intended for medical or veterinary use, research, or laboratory certification related to public health, and when properly prepared for mailing to withstand shocks, pressure changes, and other conditions incident to ordinary handling in transit. Infectious substances may be sent only in the quantities allowed in DMM C023.8.0. The following conditions also apply:
(1) Infectious Substances, which include clinical specimens and biological products that are known or reasonably believed to contain an etiologic agent, are subject to the requirements in 42 CFR 72.3 and DMM C023.8.3. Each mailpiece must be sent as Express Mail, Priority Mail, or First-Class Mail. Those specific etiologic agents listed in 42 CFR 72.3 must be sent registered First-Class Mail with a return receipt.
(2) Clinical Specimens (e.g., a urine or blood specimen used in drug-testing programs or for insurance purposes) and biological products (e.g., polio vaccine), which include only those substances that are not known or not reasonably believed to contain an infectious substance (etiologic agent), are subject to the requirements in DMM C023.8.4. Mailable materials must be sent as Express Mail, Priority Mail, or First-Class Mail.
(3) Sharps are permitted subject to the requirements in DMM C023.8.5 and must be mailed as Priority Mail or First-Class Mail with merchandise return service. An authorization is required prior to mailing as stated in 346.233 and DMM C023.8.5.
(4) Other Used Medical Devices are permitted subject to the requirements in DMM C023.8.6. These materials must be sent as Express Mail, Priority Mail, or First-Class Mail.
c. Domestic Mail via Surface Transportation. Division 6.2 materials are prohibited.
346.22 Nonmailable Class 6 Materials
When hazardous materials that are nonmailable under 346.2, and DMM C023.7.0 and C023.8.0, are found in the mailstream, the procedures in POM 139.117 must be followed if the materials present an immediate threat to persons or property. The procedures in POM 139.118 are followed when there is no immediate threat to persons or property.
346.221 Division 6.1, Toxic Substances
The following Division 6.1 materials are nonmailable:
a. Toxic Substances. Any toxic material having an LD50 for oral toxicity of 50 mg/kg or less is nonmailable except when sent between authorized parties under the conditions permitted in 346.231b. Examples of nonmailable toxic materials include, but are not limited to, the following:
(1) Aniline oil (UN1547).
(2) Bromoacetone (UN1569).
(3) 3-Chloro-4-methylphenyl isocyanate (UN2236).
(4) Chloropicrin (UN1580).
(5) Cyanogen bromide (UN1889).
(6) Hexaethyl tetraphosphate, liquid or solid (UN1611).
(7) Hydrocyanic acid aqueous solutions (UN1613).
(8) Methyl bromide (UN1062).
(9) Methyl parathion, liquid (NA3018).
(10) Motor fuel antiknock mixtures (UN1649).
(11) Organic phosphate compound (NA1955).
(12) Parathion (NA2783).
(13) Phenylcarbylamine chloride (UN1672).
(14) Tetraethyl dithiopyrophosphate (UN1704).
(15) Tetraethyl lead, liquid (NA1649).
(16) Tetraethyl pyrophosphate, liquid (NA3018).
(17) Thiophosgene (UN2474).
b. Irritating Materials. All irritating materials are nonmailable. Examples include the following:
(1) Bromobenzyl cyanide (UN1694).
(2) Chloroacetophenone (UN1697).
(3) Diphenylamine chloroarsine (UN1698).
(4) Diphenylchloroarsine (UN1699).
(5) Tear gas (UN1700, NA1693, and UN1693), except for those containing oleoresin capsicum.
346.222 Division 6.2, Infectious Substances
Division 6.2 materials are nonmailable as follows:
a. Any mailpiece containing a total volume of more than 50 ml (1.66 oz) of an infectious substance (etiologic agent) is prohibited.
b. Clinical specimens exceeding 4,000 ml per mailpiece are prohibited.
c. Mailpieces containing sharps medical waste that exceed 35 pounds in weight or do not have the required authorization are prohibited.
d. Mailpieces containing other used medical devices that exceed 35 pounds in weight are prohibited.
346.23 Mailable Class 6 Materials
In addition to the mailable types of Division 6.1 and 6.2 materials cited in 346.21, the following materials are permitted to be mailed only within the conditions noted.
346.231 Division 6.1, Toxic Substances
a. ORM-D Materials. A Division 6.1 toxic substance that can qualify as an ORM-D material is mailable when all applicable conditions are met.
b. Toxic Substances with LD50 Oral Toxicity of 50 mg/kg or Less. A Division 6.1 toxic substance having an LD50 for oral toxicity of greater than 5 mg/kg but less than or equal to 50 mg/kg is mailable only when sent between the following authorized parties and under the specified conditions:
(1) Toxic substances for scientific use (not outwardly or of their own force dangerous or injurious to life, health, or property) may be sent only between manufacturers, dealers, bona fide research or experimental scientific laboratories, and employees of federal, state, or local governments who have official use for such poisons and are designated by the agency head to receive or send such poisons.
(2) Poisonous drugs and medicines may be sent only from the manufacturer or dealer of the drugs and medicines to licensed physicians, surgeons, dentists, pharmacists, druggists, cosmetologists, barbers, and veterinarians (18 U.S.C. 1716).
346.232 Other Nonregulated Toxic Materials
Liquids and solids, such as pesticides, insecticides, herbicides, etc., that are not regulated as hazardous materials under 49 CFR are mailable subject to postal quantity restrictions that are based on the toxicity of the material.
a. Liquids. Restrictions are as follows subject to the general packaging requirements in DMM C010:
(1) A nonregulated toxic liquid having an LD50 of 50 to 500 mg/kg is permitted up to 16 fluid ounces per mailpiece.
(2) A nonregulated toxic liquid having an LD50 of 500 to 2,500 mg/kg is permitted up to 32 fluid ounces in a glass primary receptacle, or up to 1 gallon in a nonglass primary receptacle. Only one primary receptacle is permitted per mailpiece.
(3) A nonregulated toxic liquid having an LD50 of 2,500 to 5,000 mg/kg is permitted up to 1 gallon in a glass primary receptacle, or up to 2 gallons in a nonglass primary receptacle. Only one primary receptacle is permitted per mailpiece.
(4) A nonregulated toxic liquid having an LD50 of greater than 5,000 mg/kg is permitted with no quantity restriction.
(5) External markings specifying the contents and shipping papers are not required for nonregulated toxic liquids.
b. Solids. Restrictions are as follows:
(1) A nonregulated toxic solid for which an LD50 rate equivalent to liquids can be established is mailable under the same quantity restrictions for Division 6.1 toxic substances specified in Packaging Instruction 6A in Appendix C and DMM C023.7.0.
(2) Packaging requirements for a nonregulated toxic solid are the same as those for Division 6.1 toxic substance (see Packaging Instruction 6A in Appendix C), except that up to 5 pounds may be contained in a single primary receptacle. Only one primary receptacle is permitted per mailpiece.
(3) External markings specifying the contents and shipping papers are not required for nonregulated toxic solids.
346.233 Division 6.2, Infectious Substances
Infectious substances (etiologic agents), clinical (diagnostic) specimens, biological products, sharps medical waste, and other used medical waste are permitted to be mailed within specific quantity limits and packaging conditions specified in 346.3 and DMM C023.8.0.
For sharps medical waste, an authorization must be obtained prior to mailing by each manufacturer (or distributor) of a complete sharps mailing kit or packaging assembly (including all containers, cartons, and any other related material to be used to mail sharps to a storage or disposal facility). Before applying for an authorization, each type of mailing kit must be tested and certified by an independent testing facility using the test requirements cited in DMM C023.8.5. A written request for authorization is sent to the Manager, Business Mail Acceptance, USPS Headquarters. The request must contain the following:
a. $50,000 surety bond or letter of credit as proof of sufficient financial responsibility to cover disposal costs if the manufacturer (or distributor) ceases doing business before all its shipping containers are disposed of, or to cover cleanup costs if spills occur while the containers are in USPS possession.
b. Address of the headquarters or general business office of the applicant manufacturer (or distributor).
c. Address of each disposal and storage site.
d. List of all types of mailing kits to be covered by the request, a complete sample of each mailing kit, and proof of package testing certifications performed by the independent testing facility that subjected the packaging materials to the testing requirements in DMM C023.8.5.
e. Copy of the proposed manifest to be used with all mailings.
f. 24-hour telephone number for emergencies.
g. List of the types of sharps waste to be mailed for disposal.
Applicants who successfully fulfill all requirements receive a written approval letter from the manager and are assigned a unique authorization number that must be displayed on all sharps mailing container systems distributed for mail-back purposes.
346.3 Packaging
346.31 Division 6.1, Toxic Substances
Mailable toxic substances must be prepared as follows:
a. ORM-D Materials. The applicable requirements specified in 346.211 and 346.231 must be met. Packaging Instruction 6A in Appendix C must be followed.
b. Toxic Substances with LD50 Oral Toxicity of 50 mg/kg or Less. The applicable requirements specified in 346.211 and 346.231 must be met. Packaging Instruction 6F in Appendix C must be followed.
346.32 Division 6.2, Infectious Substances
The proper packaging for mailable Division 6.2 materials is as follows:
a. Infectious Substances (Etiologic Agents). All infectious substances, clinical specimens, and biological products that are known or reasonably believed to contain an etiologic agent are subject to the requirements in 42 CFR 72.3. Mailable infectious substances, as specified in 346.212, must be prepared using Packaging Instruction 6B in Appendix C. An example of the required packaging is shown in Exhibit 346.32a.
b. Clinical Specimens and Biological Products. A clinical specimen or biological product that is known or reasonably believed to contain an infectious substance (etiologic agent) must be packaged as an infectious substance under 346.32a. The packaging of a clinical specimen (e.g., a urine or blood specimen used in drug-testing programs or for insurance purposes) or a biological product (e.g., polio vaccine) that is not known or not reasonably believed to contain an infectious substance (etiologic agent) must be prepared using Packaging Instruction 6C in Appendix C.
c. Sharps. Prior authorization is required to mail sharps waste, as stated in 346.233 and DMM C023.8.5. Approved mailing of sharps waste containers must be prepared following Packaging Instruction 6D in Appendix C.
d. Other Used Medical Devices. USPS authorization is not required to mail other used medical devices. By definition in 346.12e and DMM C023.8.2e, other used medical devices do not include sharps waste or materials contaminated with infectious substances. Packaging for other used medical devices is subject to the requirements for Packaging Instruction 6E in Appendix C.
Exhibit 346.32a
Packaging of an Infectious Substance (Etiologic Agent)
Picture not available
Note: Measurement of outer packaging must be 3.9 x 3.9 x 3.9 inches or more. Maximum volume of infectious substance permitted is 50 ml (1.66 oz) per mailpiece. Separate marking and labeling requirements also apply. See Packaging Instruction 6B for complete information.
346.4 Marking, Labeling, and Documentation
346.41 Division 6.1, Toxic Substances
a. ORM-D Materials. Each mailpiece must be plainly and durably marked on the address side with "ORM-D" or "ORM-D AIR," as applicable, immediately following or below the proper shipping name (i.e., Consumer Commodity). For air transportation, each mailpiece must bear a shipper's declaration for dangerous goods. Mailable material sent via surface transportation must be marked on the address side as "Surface Mail Only."
b. Toxic Substances with LD50 Oral Toxicity of 50 mg/kg or Less. Each mailpiece must be plainly and durably marked on the address side with the proper shipping name and UN number of the material (unless exempted by DMM C024.11.2). Mailable materials sent via surface transportation must be marked on the address side as "Surface Mail Only." For air or surface transportation, each mailpiece must bear a shipper's declaration for dangerous goods.
346.42 Division 6.2, Infectious Substances
The following conditions apply:
a. Infectious Substances (Etiologic Agents).
(1) Markings. Each mailpiece must be marked on the address side with the proper shipping name and UN number of the material. The proper shipping names and UN numbers are "Infectious Substances Affecting Animals, UN2900" or "Infectious Substances Affecting Humans, UN2814," as applicable. The outer packaging must also display proper UN package specification markings.
(2) Labels. The address side of the mailpiece must bear the "Etiologic Agents/Biohazard Material" label required by 42 CFR 72.3(d). A black-and-white sample, not to size, is shown in Exhibit 346.42a. The mailpiece must also bear the Class 6 hazardous materials warning label for infectious substances (etiologic agents) required by 49 CFR 172.432. A sample, not to size, is shown in Exhibit 346.42b.
(3) Documentation. A shipper's declaration for dangerous goods is required. See 326.
b. Clinical Specimens or Biological Products.
(1) Markings. Mailpieces containing mailable clinical specimens or biological products (that do not contain an infectious substance) must be marked on the address side as "Clinical Specimen-Blood Sample," "Clinical Specimen-Urine Sample," "Biological Product," etc., as appropriate.
(2) Labels. The outer packaging may bear the international biohazard symbol with either a fluorescent orange or fluorescent red background as shown in Exhibit 346.42c and DMM C023 Exhibit 8.5c(2).
(3) Documentation. A shipper's declaration for dangerous goods is not required.
c. Sharps.
(1) Markings. Mailable sharps waste must be marked on the address side with the proper shipping name and correct UN number, which is "Regulated Medical Waste, UN3291" followed by the word "Sharps."
(2) Labels. The outer packaging must bear the international biohazard symbol with either a fluorescent orange or fluorescent red background as shown in Exhibit 346.42c and DMM C023 Exhibit 8.5c(2). Additionally, each primary receptacle and outer packaging must bear a label, which cannot be detached intact, showing the following:
H Company name of the manufacturer or the distributor.
H Container ID number (or unique model number).
H Postal authorization number issued to signify the packaging system is certified and the manufacturer or distributor obtained an authorization as required by 346.233 and DMM C023.8.5a.
(3) Manifest. All mailpieces containing used sharps must be accompanied by a four-part manifest or mail disposal service shipping record. The manifest must be placed in an envelope affixed to the outside of the shipping container. The manifest must comply with all applicable requirements imposed by the laws of the state from which the package is mailed. At a minimum, the information shown in DMM C023 Exhibit 8.5c(3) must be on the manifest. The manifest must be affixed to the outside of the mailpiece. The manifest serves as the shipping paper required in 326.
d. Other Used Medical Devices.
(1) Markings. Mailpieces containing mailable other used medical devices must be marked on the address side with the proper shipping name and UN number, which is "Regulated Medical Waste, UN3291."
(2) Labels. The outer packaging must bear the international biohazard symbol with either a fluorescent orange or fluorescent red background as shown in Exhibit 346.42c and DMM C023 Exhibit 8.5c(2).
(3) Documentation. A shipper's declaration for dangerous goods is required unless a manifest accompanies the shipment due to state or federal requirements. The manifest must be affixed to the outside of the mailpiece and must be formatted to comply with all requirements imposed by the laws of the state from which the package is mailed.
Exhibit 346.42a
Etiologic Agent/Biohazard Material Label
Picture of Label not available
Exhibit 346.42b
DOT Class 6 Infectious Substance Warning Label
Picture of label not available
Exhibit 346.42c
Biohazard Symbol
Picture of label not available
346.5 Damaged Parcels

If a mailpiece containing a Class 6 material is found to be damaged or leaking during postal handling, the incident must be reported in accordance with POM 139.117 and 139.118, as appropriate. The local postal safety officer (or designee) must immediately initiate the spill response procedures in Handbook EL-812, Hazardous Materials and Spill Response. For spills involving infectious substances (etiologic agents), the following containment and cleanup steps must also be followed:
a. Wear rubber gloves throughout the spill cleanup procedure.
b. Surround the leaking package with absorbent material.
c. Place the leaking package in another box and seal the box.
d. Place the sealed box in a plastic bag and seal the bag.
e. Place the entire package in an outer carton for return to sender (when practicable) or proper disposal.
f. Flood affected surfaces and rinse rubber gloves with household chlorine bleach, diluted 1 ounce to 1 gallon of water, and let stand for 5 minutes. Use caution with the chlorine bleach because it is a mildly corrosive oxidizer. Wipe surfaces dry with an absorbent material, place the absorbent material in a plastic bag, and incinerate.
g. Report the damaged parcel to the Centers for Disease Control and Prevention (CDC) at the telephone number listed in 246.
h. Never dispose of etiologic agents in the trash.
347 Radioactive Materials (Hazard Class 7)
347.1 Definition
Radioactive material is defined in 49 CFR 173.403 as any material having a specific activity greater than 70 Bq per gram (0.002 microcurie per gram).
347.2 Mailability
The following conditions apply:
a. International Mail. Radioactive material is prohibited in international mail if required to bear a Class 7 Radioactive White-I, Radioactive Yellow-II, or Radioactive Yellow-III hazardous materials warning label (see Exhibit 325a). See IMM 135 for the specific admissibility requirements that are applicable to international shipments of radioactive material. Mailable radioactive materials must be sent as registered air letters.
b. Domestic Mail via Air Transportation. All radioactive material is prohibited per DMM C023.1.9.
c. Domestic Mail via Surface Transportation. Radioactive material is prohibited if it is required to bear a Class 7 Radioactive White-I, Radioactive Yellow-II, or Radioactive Yellow-III hazardous materials warning label (see Exhibit 325a). Mailable radioactive materials may not have an activity content that exceeds the limits in Exhibit 347.22 (which are one-tenth of the values specified in 49 CFR 173.425), and must be one of the following materials:
(1) A radioactive material eligible to be shipped as a limited quantity under 49 CFR 172.101.
(2) An excepted instrument, article, or device including an instrument and manufactured article (such as a clock, electronic tube, or apparatus) or a similar device that has a radioactive material in gaseous or nondispersible solid form as a component part.
(3) An excepted article containing natural uranium or thorium, including manufactured articles in which the sole radioactive material is natural or depleted uranium or natural thorium.
347.21 Nonmailable Radioactive Materials
Any package bearing, or required to bear, one of the Class 7 hazardous materials warning labels for radioactive materials shown in Exhibit 325a is nonmailable under any conditions. Report nonmailable materials found in the mailstream to the appropriate officials in accordance with POM 139.117 and 139.118, as applicable. See 347.5 for emergency procedures.
347.22 Mailable Radioactive Materials
As stated in 347.2, the only categories of radioactive material that are mailable in international mail or in domestic mail via surface transportation are those that do not have an activity level exceeding the limits in Exhibit 347.22 and are eligible to be shipped as a limited quantity under 49 CFR, are excepted instruments, articles, and devices, or are excepted articles containing natural uranium and thorium. The mailer must provide accurate documentation of the activity limits, which must not exceed those specified in Exhibit 347.22.
Exhibit 347.22
Activity Limits for Mailable Instruments, Articles, and Limited Quantity Radioactive Materials

Nature of Contents Limits for Each Instrument or Article1 Package Limits1 Materials
Package Limits1 Solids: Special form Normal form
10-3 A1 10-3 A2 0.1 A1 0.1 A2
10-4 A1 10-4 A2 Liquids: Tritiated water:
0.037 TBq/L (1.0 Ci/L)
Other Liquids:
10-4 A2

10-2 A2 3.7 TBq (100 Ci) 0.37 TBq (10 Ci)
0.0037 TBq (0.1 Ci) 10-5 A2 Gases:
Tritium2 Special form Other form 2 x 10-3 A2
10-4 A1 10-4 A2 2 x 10-2 A2 10-3 A1
10-3 A2 2 x 10-3 A2 10-4 A1 10-4 A2
1 For mixture of radionuclides, see 49 CFR 173.433(d). 2 These values also apply to tritium in activated luminous paint and tritium adsorbed on solid carriers.
347.3 Packaging
The following packaging requirements apply:
a. Limited Quantities (49 CFR 173.421). Radioactive materials whose activity per package does not exceed the limits specified in Exhibit 347.22 are excepted from specification packaging, marking, and labeling requirements. All applicable conditions for Packaging Instruction 7A in Appendix C must be met.
b. Instruments and Articles (49 CFR 173.424). Instruments and manufactured articles (including clocks, electronic tubes, or apparatus) or similar devices having radioactive materials in gaseous or nondispersible solid form as a component part (whose activity level does not exceed the limits specified in Exhibit 347.22) are excepted from specification packaging, marking, and labeling requirements. All applicable conditions for Packaging Instruction 7A in Appendix C must be met.
c. Excepted Articles Containing Uranium or Thorium (49 CFR 173.426). Manufactured articles in which the sole radioactive material is natural or depleted uranium or natural thorium (whose activity level does not exceed the limits specified in Exhibit 347.22) are excepted from specification packaging, marking, and labeling requirements. All applicable conditions for Packaging Instruction 7A in Appendix C must be met.
347.4 Marking
The outside of the inner receptacle or the outside of the secondary packaging must be marked "Radioactive." The address side of the mailpiece must clearly and prominently display one of the following markings, as applicable:
a. Mailable Limited Quantity Shipments: "This package conforms to the conditions and limitations specified in 49 CFR 173.421 for radioactive material, excepted package-limited quantity of material, UN2910 and is within Postal Service activity limits for mailing."
b. Mailable Instruments and Articles: "This package conforms to the conditions and limitations specified in 49 CFR 173.424 for radioactive material, excepted package-instruments or articles, UN2910 and is within Postal Service activity limits for mailing."
c. Mailable Excepted Articles Containing Uranium or Thorium: "This package conforms to the conditions and limitations specified in 49 CFR 173.426 for radioactive material, excepted package-articles manufactured from natural uranium (or natural thorium), UN2910 and is within Postal Service activity limits for mailing."
347.5 Emergency Procedures
When a nonmailable package of radioactive material is discovered intact in the mailstream, the following procedures must be immediately followed:
a. Place the parcel at least 15 feet from other mail or personnel. Under no circumstances may the package be dispatched.
b. Report the mailpiece to the appropriate officials in accordance with POM 139.117 and 139.118, as applicable.
c. If a package of radioactive material is found damaged or is leaking, immediately contact the facility safety officer (or designee). The safety officer will:
* Follow the appropriate spill response procedures.
* Isolate the area around the damaged package to prevent contact with people.
* Isolate any conveyor, belt, chute, or other equipment or conveyance, including mailbags, in which the radioactive material has leaked or may have leaked.
* Rope off or guard the isolated area whenever practical.
* Place a temporary sign indicating the presence of radioactive materials and bearing a warning to stay beyond the edge of the roped area.
The local postmaster must immediately request the assistance of qualified persons to check radiation hazards and to supervise the salvage and decontamination. This assistance may be received from the mailer (if known) or from one of the following contacts:
(1) Nearest office of the Department of Energy (DOE) as listed in Exhibit 347.5c(1) or DOE's national emergency number as follows:
DEPARTMENT OF ENERGY (DOE)
EMERGENCY OPERATIONS CENTER
202-586-8100
(2) Local health, fire, or police departments.
(3) Local civil defense authorities.
(4) Nearby military installations.
(5) Nearby scientific laboratories.
(6) The Nuclear Regulatory Commission (NRC), the Environmental Protection Agency (EPA), and the Federal Emergency Management Agency (FEMA), whose national emergency numbers are as follows:
NUCLEAR REGULATORY COMMISSION (NRC)
301-816-5100
ENVIRONMENTAL PROTECTION AGENCY (EPA)
NATIONAL RESPONSE CENTER
800-424-8802
202-426-2675
FEDERAL EMERGENCY MANAGEMENT AGENCY (FEMA)
NATIONAL EMERGENCY COORDINATION CENTER
202-646-2400
Exhibit 347.5c(1)

Department of Regional Coordinating Offices for Radiological Assistance and Geographical Areas of Responsibility
DOE Regional Coordinating Offices
Regional Coordinating Offices Address 24-Hour Telephone 1. Brookhaven Area Office PO. Box 5000 Uptown New York 11973-5000 516-282-2000 2. Oak Ridge Operations Office PO. Box 2001 Oak Ridge TN 37831-8543 423-576-1005 3. Savannah River Operations Office PO. Box 616 Aiken South Carolina 29802-0616 803-725-3333 4. Albuquerque Operations Office PO. Box 5400 Albuquerque New Mexico 87185-5400 505-845-4667 5. Chicago Operations and Regional Office 9800 South Cass Avenue Argonne Illinois 60439-4897 630-252-4800 6. Idaho Operations Office 850 Energy Place Idaho Falls ID 83401-1563 208-526-1515 7. Oakland Operations Office 1301 Clay Street Oakland California
94612-5208 510-637-1794 8. Richland Operations PO. Box 550 Richland WA 99352-0550 509-373-3800

Alaska in Region 8
Puerto Rico in Region 2
Hawaii in Region 7
Virgin Islands in Region 2
Canal Zone in Region 3

348 Corrosives (Hazard Class 8)
348.1 Definition
A corrosive is any liquid or solid that causes visible destruction or irreversible alteration in human skin tissue at the site of contact, or a liquid that has a severe corrosion rate on steel. The term "corrosive" includes all items commonly referred to as acids, as well as most batteries.
348.2 Mailability
a. International Mail. All corrosives are prohibited.
b. Domestic Mail. A corrosive that can qualify as an ORM-D material and be renamed with the proper shipping name "Consumer Commodity" is permitted via air or surface transportation subject to the following:
(1) A liquid mixture must be 1 pint (16 oz) or less and must contain 15 percent or less corrosive material with the remainder of the mixture not being a hazardous material, unless otherwise specified in 348.22 for a specific corrosive material.
(2) A solid mixture must be 10 pounds or less per primary receptacle and must contain 10 percent or less corrosive material with the remainder of the mixture not being a hazardous material, unless otherwise specified for a specific corrosive solid.
348.21 Nonmailable Corrosives
Nonmailable corrosives include the following:
a. Batteries (UN2794, UN2795) with liquid electrolyte (automobile lead acid batteries, etc.), except for the nonspillable type allowed under 348.22.
b. High-energy, Alkaline, Dry-cell Batteries capable of over heating and causing fires if a direct short should occur.
c. Electrolyte battery acid (UN2796).
d. Nitric Acid (UN2031, UN2032).
e. Fuming and Spent Sulfuric Acids (UN1831, UN1832).
f. Hydrofluoric Acid (UN 1790).
348.22 Mailable Corrosives
As a rule, liquid corrosives are limited to 15 percent solution or less as stated in 348.2 and DMM C023.10.0, unless otherwise specified below. Mailable corrosives include the following:
a. Acetic Acid (UN2790). Acceptable in solutions that qualify as an ORM-D material and contain less than 80 percent acid and do not exceed 1 pint. Only one primary receptacle is permitted per mailpiece. Packaging Instruction 8A must be followed.
b. Batteries. Mailable batteries include:
(1) Some paste electrolyte batteries, such as the Eldon "Super Power" battery, are permitted if the battery can qualify as an ORM-D material. Packaging Instruction 8A must be followed.
(2) Dry-cell batteries and batteries containing no more than 0.5g of lithium or lithium alloys generally are not regulated as hazardous materials and are permitted in the domestic mail. See 49 CFR 173.185 for specific conditions concerning lithium and lithium alloy batteries. Mailable batteries must be securely packaged to preclude a direct short. In addition, the general packaging requirements in DMM C010 apply.
(3) A nonspillable wet battery containing liquid electrolyte is permitted to be mailed only if the battery casing is completely sealed to prevent the liquid corrosive from spilling during postal handling as stated in DMM C023.10.4. Nonspillable batteries with UN2800 are prohibited in international mail, but may be sent as domestic mail via air or surface transportation when prepared within the conditions of Packaging Instruction 8B in Appendix C.
c. Hydrochloric Acid (UN1789). Acceptable only in solutions not exceeding 10 percent acid that can qualify as an ORM-D material. Packaging Instruction 8A in Appendix C must be followed.
d. Sulfuric Acid (UN2796). Acceptable in solutions of less than 25 percent acid that qualify as an ORM-D material. Mailable liquids must be packed in a primary receptacle not exceeding 1 pint. Only one primary receptacle is permitted per mailpiece. Packaging Instruction 8A in Appendix C must be followed.
e. Dyes (UN2801, UN3147). Acceptable if the dyes can qualify as ORM-D materials. Mailable dyes must be packaged as required in 348.3 and Packaging Instruction 8A in Appendix C.
f. Photographic Mixtures. Acceptable if the corrosive liquid solutions for preparing photographic processing mixtures can qualify as ORM-D materials. Packaging Instruction 8A in Appendix C must be followed. When these liquids are in securely closed and sealed bottles that are properly cushioned, they may be packed in the same outside shipping container with required amounts of packaged dry chemicals not classified as hazardous materials (provided no dangerous reaction would occur should the contents of the bottles be mixed with the dry chemicals).
348.3 Packaging
Mailable corrosives, both liquids and solids, must meet the applicable requirements in 348.2b and be prepared as required in Packaging Instruction 8A in Appendix C, or as permitted in 348.22.
348.4 Marking and Documentation
For air transportation, a mailpiece containing a mailable corrosive material must be plainly and durably marked on the address side with "ORM-D AIR" immediately following or below the proper shipping name (i.e., Consumer Commodity). A properly completed shipper's declaration for dangerous goods must be affixed to the outside of the mailpiece.
For surface transportation, a mailpiece must be plainly and durably marked on the address side with "Surface Mail Only" and "ORM-D" immediately following or below the proper shipping name (i.e., Consumer Commodity). A shipper's declaration for dangerous goods is not required for mailable Class 8 corrosives.
349 Miscellaneous Hazardous Materials
(Hazard Class 9)
349.1 Definition
A miscellaneous hazardous material is a substance or article that presents a hazard during transportation but does not meet the definition of any other hazard class.
Miscellaneous hazardous materials include:
a. Any material that has an anesthetic, noxious, or other similar property that could cause extreme annoyance or discomfort to a flight crew member.
b. Any elevated temperature material, hazardous substance, hazardous waste (other than Division 6.2 medical waste), or marine pollutant.
Examples of miscellaneous hazardous materials (not all of which are mailable) include solid dry ice, magnetized materials, elevated temperature substances, environmentally hazardous substances, life-saving appliances (i.e., automobile air-bags), and asbestos.
349.2 Mailability
a. International Mail. All miscellaneous hazardous materials are prohibited, except for certain magnetized materials as permitted in 349.242a and IMM 136g.
b. Domestic Mail. A miscellaneous hazardous material that can be reclassed as an ORM-D material and renamed as a consumer commodity is permitted. Additionally, dry ice and magnetized materials are permitted within the specific limits provided in 349.23 and 349.24.
349.21 Nonmailable Class 9 Materials
The following materials are prohibited:
a. All Class 9 materials that cannot qualify as an ORM-D material except dry ice and magnetized materials.
b. All magnetized materials that have a measurable magnetic field strength greater than 0.00525 gauss at 15 feet.
c. For air transportation, all magnetized materials that can cause a compass deviation at a distance of 7 feet or more.
d. In domestic mail via air transportation, dry ice in quantities exceeding 5 pounds per mailpiece.
349.22 Mailable Class 9 Materials
A Class 9 material that can qualify as an ORM-D material is permitted in the domestic mail via air or surface transportation up to a weight limit of 25 pounds per mailpiece. All applicable 49 CFR requirements must be met.
349.23 Dry Ice
349.231 General
Dry ice is primarily used to keep other items cool. The items being cooled can be either mailable hazardous materials or nonhazardous items, such as medical specimens or foods.
349.232 Characteristics and Precautions
Dry ice (carbon dioxide solid) is produced by expanding liquid carbon dioxide to vapor and compacting the material into blocks. When dry ice converts (dissipates) to a gaseous form, it takes in heat from its surroundings. The resulting gas is heavier than air and can cause suffocation in confined areas as air is displaced. When dry ice is enclosed in a thick metal or other restrictive type of container, internal pressure builds up and could cause the container to rupture or explode.
Mailpieces containing dry ice must be handled with care because its very low temperature (about -110 degrees F or -79 degrees C) can cause severe burns to skin upon direct contact.
349.233 Dry Ice Mailability
Dry ice is permitted to be mailed when it is used as a refrigerant to cool the content of a mailable hazardous or nonhazardous material. Packages containing dry ice must be packed in containers that permit the release of carbon dioxide gas and conform to 49 CFR 173.217 and 175.10(a)(13). Mailpieces containing dry ice are subject to the following conditions, as applicable:
a. International Mail. Dry ice is prohibited.
b. Domestic Mail via Air Transportation. Dry ice is permitted in quantities of up to 5 pounds per mailpiece. Mailpieces containing dry ice are subject to the conditions for Packaging Instruction 9A in Appendix C, as applicable.
c. Domestic Mail via Surface Transportation. A mailpiece sent via surface transportation (i.e., at Standard Mail rates) may contain more than 5 pounds of dry ice. Mailpiece preparation is subject to the conditions for Packaging Instruction 9A in Appendix C.
Note: A mailpiece that is prepared for surface transportation must not, under any circumstances, be routed via air transportation.
349.24 Magnetized Materials
349.241 Definition
A magnetized material is an article that has a magnetic field strength capable of causing the deviation of aircraft instruments. Magnetized materials include magnets and magnetized devices such as magnetrons and light meters of sufficient strength to possibly cause erroneous aircraft magnetic compass readings.
349.242 Mailability
Magnetized materials that have a magnetic field strength of 0.002 gauss or more at a distance of 7 feet from any point on the surface of the outer packaging are mailable via air transportation if properly packaged. Magnetized materials that have a field strength greater than 0.00525 gauss at 15 feet are nonmailable under any conditions. The following requirements also apply:
a. International Mail. Magnetized materials are prohibited except for those that cannot cause a compass deviation at a distance of 7 feet or more. See 622.4.
b. Domestic Mail via Air Transportation. Magnetized materials that can cause a compass deviation at 7 feet or more are prohibited. A magnetized material is mailable if it is not capable of causing a compass deviation at a distance of 7 feet or more. Mailpiece preparation is subject to the conditions for Packaging Instruction 9B in Appendix C. The address side of the outer packaging must bear the magnetized material warning label shown in Exhibit 349.242b.
c. Domestic Mail via Surface Transportation. A magnetized material is not restricted by the limitation that it must not cause a compass deviation at distance of 7 feet or more (but it may not have a field strength greater than 0.00525 gauss at 15 feet). A mailpiece containing magnetized material with unconfined fields must be clearly identified on the address side with the markings "Magnetic - Keep 7 Feet Away From Navigational Equipment" and "Surface Mail Only." The preparation conditions for Packaging Instruction 9B in Appendix C must be met.
Exhibit 349.242b
Warning Label for Magnetized Materials
Picture of label not available.

349.3 Packaging
For mailable Class 9 materials, the following packaging requirements as detailed in the Packaging Instructions in Appendix C apply:
a. Packaging Instruction 9A. Must be followed for mailable quantities of dry ice.
b. Packaging Instruction 9B. Must be followed for mailable types of magnetized materials.
c. Packaging Instruction 9C. Must be followed for Class 9 miscellaneous hazardous materials that are eligible to be re-classed as mailable ORM-D materials.
349.4 Marking and Documentation
For air transportation, a mailable Class 9 material that can be re-classed as an ORM-D material must be plainly and durably marked on the address side with "ORM-D AIR" immediately following or below the proper shipping name (i.e., Consumer Commodity). A shipper's declaration for dangerous goods that is prepared in triplicate must be affixed to the outside of the mailpiece.
For surface transportation, a mailable material that can be re-classed as an ORM-D material must be plainly and durably marked on the address side with "Surface Mail Only" and "ORM-D" immediately following or below the proper shipping name (i.e., Consumer Commodity).
The specific marking and documentation requirements for dry ice and magnetized materials are specified in Packaging Instructions 9A and 9B in Appendix C, as applicable.

4 Restricted Matter
41 General
411 Definition
Restricted matter includes articles on which certain mailing restrictions have been imposed for reasons other than risk of harm to persons or property involved in moving the mail. Motor vehicle master keys and intoxicating liquors are examples of restricted items.
412 Mailer Responsibility
The mailer is responsible for ensuring that all postal requirements, as well as all federal and state laws and local ordinances that apply to the shipment of an article of restricted matter, have been met.
413 Rulings
Where doubt exists about mailability of any article that is considered to be restricted matter, a request for a ruling may be made to the local postmaster (see 215.3).
When the qualification of an addressee to receive restricted matter within the conditions in this chapter and DMM C024 is in question, a postmaster may require the mailer or addressee to furnish a written explanation of the addressee's eligibility and/or the item's mailability. If the explanation is not satisfactory or when uncertainty remains, the postmaster may forward the explanation along with a statement of the facts to the appropriate RCSC for a ruling.
414 Nonmailable Matter Found in the Mails
All nonmailable articles of restricted matter discovered in the mailstream must be immediately reported in accordance with the provisions in POM 139.117 or 139.118, as appropriate.
42 Intoxicating Liquors
421 Definition
Intoxicating liquors are potable beverages that have 0.5 percent or more alcoholic content by weight and that are taxable under chapter 51 of the Internal Revenue Service (IRS) Code.
422 Mailability
422.1 Nonmailable Matter
422.11 Intoxicating Liquors
Intoxicating liquors having 0.5 percent or more alcoholic content are nonmailable. This includes taxable liquors with 3.2 percent or less alcohol, as well as those obtained under a prescription or as a collector's item. The prohibition of the mailing of intoxicating liquors is contained in federal law (18 U.S.C. 1716).
422.12 Promotional Materials
Advertising, promotional, or sales matter that solicits or induces the mailing of intoxicating liquors also is nonmailable. See DMM C031.4.0.
422.2 Mailable Liquors
422.21 Products Not Categorized As Intoxicating Liquors
A product containing an intoxicating liquor is mailable if it conforms to the applicable requirements of the IRS and the Food and Drug Administration (FDA) and if it is not a taxable alcoholic beverage, or poisonous or flammable. The following examples are mailable:
a. Cold remedies.
b. Cooking wine.
c. Mouthwash.
422.22 Exempt Mailings Between Federal and State Agencies
Intoxicating liquor is exempt from the prohibition against mailing when it is sent between employees of federal or state agencies who have an official use for the liquor, such as for testing purposes. This exemption is based on the intent of the law to prevent liquor from being transported to prohibited jurisdictions for consumption and to ensure that all proper tax revenues are paid.
423 Packaging and Marking
423.1 General
All exempt and excepted intoxicating liquors must be sent via registered mail service and must meet the packaging requirements for liquids in DMM C010.
423.2 Denatured Flammable or Combustible Liquor
There are no postal requirements to denature the contents of intoxicating liquor (i.e., to change the nature or natural qualities). However, if contents are denatured through the use of such elements as sodium bisulfate (a corrosive) or mercuric chloride (a poison), the substances must meet the mailability requirements in Chapter 3 for a Class 8 corrosive material or a Division 6.1 toxic substance, as appropriate. If the contents are flammable or combustible, the material must meet the requirements for a Class 3 flammable or combustible liquid in Chapter 3.
43 Firearms
431 Definitions
431.1 Firearm
A firearm is defined as any device (including a starter gun) that is designed, or may readily be converted, to expel a projectile by an explosion, a spring, or other mechanical action, or by air or gas pressure with sufficient force to be used as a weapon.
431.2 Handgun
Pistols, revolvers, and other firearms capable of being concealed on the person (for example, short-barreled shotguns and short-barreled rifles) are defined as handguns. The following definitions apply:
a. Pistol or Revolver. A pistol or revolver is a handgun designed to be fired by the use of a single hand.
b. Short-Barreled Rifle. A rifle having one or more barrels less than 16 inches long is defined as a short-barreled rifle. This includes any weapon made from a rifle (by alteration or modification) resulting in an overall length of less than 26 inches.
c. Short-Barreled Shotgun. A shotgun having one or more barrels less than 18 inches long is defined as a short-barreled shotgun. This includes any weapon made from a shotgun (by alteration or modification) resulting in an overall length of less than 26 inches.
431.3 Antique Firearm
An antique firearm (including those with a matchlock, flintlock, percussion cap, or similar type of ignition system) is any firearm manufactured in or before 1898, or any replica of such a firearm, that meets either of the following conditions:
a. It is not designed or redesigned for using rimfire or conventional centerfire fixed ammunition.
b. It uses rimfire or conventional centerfire fixed ammunition, which is no longer manufactured in the United States and is not readily available through ordinary commercial trade channels.
431.4 Rifles and Shotguns
A rifle is a shoulder weapon having a barrel that is 16 inches or more in length. A shotgun has a barrel of 18 inches or more in length. Rifles and shotguns have an overall length of 26 inches or greater and cannot be capable of being concealed on a person.
431.5 Licensed Manufacturer/Licensed Dealer
A manufacturer of firearms or a bona fide dealer in firearms is one duly licensed by the Bureau of Alcohol, Tobacco, and Firearms (ATF), U.S. Department of the Treasury, under the Gun Control Act of 1968.
432 Mailability
432.1 General
The following conditions apply:
a. Pistols, revolvers, and other firearms capable of being concealed on the person (referred to as handguns) are nonmailable in the domestic mail except as permitted in Exhibit 432.1 and DMM C024.1.0.
b. The disassembled parts of a handgun or other type of nonmailable firearm that can be readily reassembled as a weapon are nonmailable except as permitted in Exhibit 432.1 and DMM C024.1.0 or C024.2.0.
c. Unloaded antique firearms sent as curios or museum pieces are generally permitted as specified in Exhibit 432.1 and DMM C024.2.0.
d. Unloaded rifles and shotguns may be mailed if the mailer fully complies with the Gun Control Act of 1968 (Public Law 90-618) and 18 U.S.C. 921. The mailer may be required to establish, by opening the parcel or by written certification, that the gun is unloaded and not excluded from mailing because of the restrictions in 431.2b and c.
432.2 PS Form 1508
PS Form 1508, Statement by Shipper of Firearms, must be completed by each firearm manufacturer or dealer who deposits firearms for mailing. The form must be filed with the postmaster of the post office of mailing.
Exhibit 432.1
Mailability Requirements for Firearms

Handguns may be mailed by a licensed manufacturer or dealer, an authorized federal agent, or an authorized state, territory, or district agent ONLY when addressed to one of the following addressee categories for use in official duties:
Addressee Affidavit Requirements
a. Officer of Army, Navy, Air Force, Coast Guard, Marine Corps, or organized reserve corps.
b. Officer of National Guard or militia of a state, district, or territory.
Mailable with affidavit signed by addressee and certificate signed by commanding officer.
c. Officer of the federal government or a state, district, or territory whose official duty is to serve warrants of arrest or commitment.
d. USPS employees specifically authorized by the chief postal inspector.
e. Officer or employee of a U.S. enforcement agency.
Mailable with affidavit signed by addressee and certificate signed by head of agency employing the addressee.
f. Watchman engaged in guarding federal, state, district, or territory property.
Mailable with affidavit signed by addressee and certificate signed by chief clerk of department, bureau, or branch of government agency employing the addressee.
g. Purchasing agent or other designated member of an agency employing officers and personnel included in c, d, or e above.
Mailable with affidavit signed by addressee and certificate signed by the head of agency stating the firearm is to be used by an officer or employee cited in c, d, or e of the opposite column.
Unloaded Handgun
Mailer must be licensed manufacturer or dealer mailing to another licensed manufacturer or dealer. Addressee is FBI (or it's director) or scientific lab or crime detection bureau of any agency whose members are federal law enforcement officers, or state, district, or territory officers authorized to serve warrants of arrest or commitment. Manufacturers or dealers must complete PS form 1508, Statement by Shipper of firearms, and file with postmaster.
Postmasters may forward an unsatisfactory mailer statement to their RCSC for a ruling.

Unloaded Rifle or Shotgun
Short-barrelled rifles or shotguns that can be concealed on a person are nonmailable.
Mailer must comply with Gun Control Act of 1968 and with the state and local laws. USPS may require mailer to open parcel or give written certification that weapon is unloaded and not concealable. Registered mail service is recommended.

Unloaded Antique Firearm
Unloaded antique firearms sent as curios or museum pieces are acceptable for mailing.

432.3 Packaging and Marking
No markings of any kind that indicate the nature of the contents may be placed on the outside wrapper or container of any mailpiece containing firearms. Mailable matter must be properly and securely packaged within the general packaging requirements in DMM C010.
433 Mailer Responsibility
Even though certain types of firearms are permitted to be mailed within the provisions of the postal law in 18 U.S.C. 1715, it is the mailer's responsibility to comply with all federal and state regulations and local ordinances affecting the movement of firearms.
434 Legal Opinions on Mailing Firearms
Postmasters are not authorized to give opinions on the legality of any shipment of rifles or shotguns. Mailers should be referred to the nearest regional ATF office for further advice. See 435 and Exhibit 435.
435 Bureau of Alcohol, Tobacco, and Firearms (ATF)
Exhibit 435 lists the locations of the Department of the Treasury's regional ATF offices.
Exhibit 435
Bureau of Alcohol, Tobacco, and Firearms Regional Offices

Office Area Served
North Atlantic Region
6 WORLD TRADE CENTER SIXTH FLOOR
NEW YORK NY 10048-0622
212-264-2328 Connecticut, Maine, Massachusetts, New Hampshire, New York, Rhode Island, Vermont
841 CHESTNUT BUILDING THIRD FLOOR
PHILADELPHIA PA 19107-4403
215-597-4107 Delaware, Maryland, New Jersey, Pennsylvania
Southeast Region
2600 CENTURY PARKWAY RM 430
ATLANTA GA 30345-3104
404-679-5130 Alabama, Florida, Georgia, Mississippi, North Carolina, Puerto Rico, South Carolina, Tennessee, Virgin Islands
Midwest Region
550 MAIN STREET
CINCINNATI OH 45202-3263
513-684-3334 District of Columbia, Indiana, Kentucky, Michigan, Ohio, Utah, Virginia, West Virginia
300 SOUTH RIVERSIDE PLZ STE 310
CHICAGO IL 60606-6613
312-353-1967 Arkansas, Colorado, Illinois, Iowa, Kansas, Louisiana, Minnesota, Missouri, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, Wisconsin, Wyoming
Western Region
221 MAIN STREET 11TH FLOOR
SAN FRANCISCO CA 94105-1927
415-744-9419 Alaska, Arizona, California, Guam, Hawaii, Idaho, Montana, Nevada, Oregon, Washington
436 Nonmailable Firearms Found in the Mails
Nonmailable firearms discovered in the mailstream must be immediately reported in accordance with POM 139.117.
44 Knives and Sharp Instruments
441 Definitions
441.1 General
Sharp instruments include all sharp-pointed or sharp-edged implements such as knives, tools, ice picks, razor blades, stilettos, or similar devices. When uncertain about the mailability of a sharp instrument or a switchblade knife, a ruling may be requested from the local postmaster (see 215.3).
441.2 Switchblade Knife
A switchblade knife has a blade that opens automatically by hand pressure applied to a button or other device in the handle, or by operation of inertia, gravity, or both.
442 Mailability
A switchblade knife, as defined in 441.2, is mailable only to the following categories of addressees:
a. Certain designated supply or procurement officers and employees ordering, procuring, or purchasing them for use in connection with their respective governments or organizations, such as:
(1) Civilian or armed forces supply or procurement officers, and employees of the federal government.
(2) Supply or procurement officers of the National Guard, the Air National Guard, or the militia of a state, territory, or the District of Columbia.
(3) Supply or procurement officers or employees of the municipal government of the District of Columbia, or of the government of any state or territory, or of any county, city, or other political subdivision of a state or territory.
b. Manufacturers or bona fide dealers of such knives in connection with a shipment made to an address in one of the above categories.
443 Packaging and Marking
443.1 General
All sharp-pointed or sharp-edged instruments such as knives, tools, ice picks, razor blades, etc., must be securely packaged in a strong container as required in DMM C010. Sufficient cushioning material must be used to protect the sharp points and edges from cutting through the outer packaging during normal postal handling.
443.2 Marking
No marking of any kind that indicates the nature of the contents may be placed on the outside of any mailpiece containing a switchblade knife.
444 Nonmailable Switchblade Knives in the Mails
Nonmailable knives or sharp instruments discovered in the mailstream must be reported in accordance with POM 139.117.
45 Odor-Producing Materials
Any nonhazardous matter (i.e., food, nontoxic printing ink, paper) that is a source of an obnoxious odor is nonmailable as stated in DMM C024.8.0. Odor-producing materials do not include items that are considered hazardous materials under the requirements in Chapter 3.
46 Liquids and Powders
461 Definitions
A liquid is any substance that flows readily and assumes the form of the container, but retains an independent volume. For the purposes of mailability, a liquid may be a cream or paste or any other nonhazardous substance (except a gas) that may liquefy under existing conditions.
A powder is a substance composed of finely dispersed solid particles.
462 Mailability
Liquids and powders that are nonhazardous (i.e., not regulated as hazardous materials) are mailable provided they are properly packaged as specified in 463 and DMM C010.
462.1 Restrictions
Liquids and powders that are corrosive, explosive, flammable, toxic, or otherwise hazardous are subject to the mailing conditions for hazardous materials in Chapter 3 and DMM C023, as applicable.
462.2 Cremated Remains
Human ashes are permitted to be mailed provided they are packaged as required in 463b. The identity of the contents should be marked on the address side. Mailpieces must be sent registered mail with return receipt service.
463 Packaging and Marking
The following conditions apply:
a. Liquids. Nonhazardous liquids, creams, and pastes (particularly those in 1-gallon paint cans with only friction-top closures) are often a source of damage to other mail and postal equipment. The proper packaging of liquids is critical to ensuring the integrity of the mailpiece during postal handling.
All liquids are subject to the general packaging requirements in DMM C010 and the following:
(1) Containers having friction-top closures are not acceptable by themselves. Such containers must be packed within a strong and securely sealed outer packaging.
(2) Screw caps with a minimum of one and one-half turns, soldering clips, or other effective means must be employed to ensure a secure closure.
(3) Glass and other breakable containers more than 4 fluid ounces and any containers over 32 fluid ounces must be cushioned within a sealed, waterproof container such as a can or a plastic bag, and must be packed within a strong and securely sealed outer packaging.
(4) Steel pails and drums with carrying handles and positive closures (i.e., locking rings or recessed spouts under screw-cap closures) may be accepted without additional packaging.
b. Powders. Dry materials that could cause damage, discomfort, destruction, or soiling upon escape (i.e., leakage) must be packed in siftproof containers or other containers that are sealed in durable siftproof outer containers.
47 Motor Vehicle Master Keys and Locksmithing Devices
471 Definitions
471.1 Motor Vehicle Master Keys
A motor vehicle master key is any of the following:
a. Any key other than the key (or an exact duplicate) furnished with the motor vehicle by the manufacturer.
b. The key (or an exact duplicate) furnished with a replacement lock.
c. Any key or manipulation device designed to operate two or more motor vehicle ignition, door, or trunk locks of different combinations, including any pattern, impression, or mold from which a master key or manipulation device can be made (18 U.S.C. 1716 and 39 U.S.C. 3002).
471.2 Locksmithing Devices
A locksmithing device is any of the following:
a. A device or tool (other than a key) designed to manipulate the tumblers in a lock into the unlocked position through the keyway of such lock.
b. A device or tool (other than a key or a device or tool under 471.2a) designed for bypassing a lock or similar security device, or for opening it by a method normally not used by consumers to open such locks or security devices.
c. A device or tool designed for making an impression of a key or similar security device in order to duplicate such key or device.
472 Mailability
The following conditions apply:
a. Motor vehicle master keys, as defined in 471.1, are nonmailable unless sent to any of the following categories of addressees:
(1) Lock manufacturers.
(2) Professional locksmiths.
(3) Motor vehicle manufacturers or dealers.
(4) Federal, state, or local government agencies.
b. Locksmithing devices, as defined in 471.2, are nonmailable except when sent to any of the following categories of addressees:
(1) Lock manufacturers or distributors.
(2) Bona fide locksmiths.
(3) Bona fide repossessors.
(4) Motor vehicle manufacturers or dealers.
(5) Bona fide automotive repair shops or businesses.
473 Packaging and Marking
No marking of any kind that indicates the nature of the contents may be placed on the outer wrapper or packaging of any mailpiece containing motor vehicle master keys or locksmithing devices. Mailable matter must be properly and securely packaged within the general requirements in DMM C010.
474 Nonmailable Matter Found in the Mails
All nonmailable motor vehicle master keys and locksmithing devices discovered in the mailstream must be reported in accordance with POM 139.117.
48 Controlled Substances and Drugs
481 Definitions
481.1 Controlled Substances
A controlled substance is any narcotic, hallucinogenic, stimulant, or depressant drug identified in Schedules I through V of the Controlled Substances Act in 21 U.S.C. 801 and the implementing regulations in 21 CFR 1300. Controlled substances include poisons, compositions containing poisons, poisonous drugs and medicines, or materials that may kill or injure within the intent and meaning of 18 U.S.C. 1716.
481.2 Drugs
The term "drug" refers to all prescription, nonprescription, and patent medicines and related items such as aspirin, antiseptics, cold remedies, diet pills, and cosmetic medicines that do not contain a controlled substance and are not poisonous drugs or medicines. Certain poisonous (toxic) drugs and medicines may be subject to the requirements for Division 6.1 materials in Chapter 3.
481.3 Drug Paraphernalia
The term "drug paraphernalia" refers to any equipment, product, or material primarily intended or designed for use in manufacturing, compounding, converting, concealing, producing, processing, preparing, injecting, ingesting, inhaling, or otherwise introducing into the human body a controlled substance.
482 Mailer Responsibility
The mailer is fully responsible for the following:
a. Ensuring compliance not only with Postal Service regulations, but also with all other federal laws and regulations, such as the Poison Prevention Packaging Act and the Consumer Product Safety Act, and with all local laws and regulations governing distribution of unsolicited samples.
b. Being aware of other characteristics of an article or substance, such as its flammable, toxicity, or corrosive characteristics, that may affect its mailability.
483 Mailability
483.1 Controlled Substances
If the distribution of a controlled substance is unlawful under 21 U.S.C. 801 or any implementing regulation in 21 CFR 1300, then the mailing of the substance is also unlawful under 18 U.S.C. 1716.
Controlled substances and drugs that contain controlled substances are acceptable in the domestic mail only under the following conditions:
a. For mailable controlled substances, generally both the mailer and addressee must meet either of the following conditions:
(1) Be registered with the Drug Enforcement Administration (DEA).
(2) Be exempted from DEA registration, such as military, civil defense, and law enforcement personnel, in performing official duties.
b. For prescription medicines containing mailable narcotic drugs (controlled substances), only a pharmacist or medical practitioner, etc., who dispenses the medicine may mail such substances to the patients under their care.
483.2 Drugs (Other Than Controlled Substances)
All prescription, nonprescription, and patent medicines and related items, including solicited and unsolicited samples of such items, that are not considered to be controlled substances under 481.1 are permitted to be mailed as follows:
a. For prescription medicines containing a nonnarcotic drug(s), the mailer must be a registered practitioner or dispenser mailing to the ultimate user.
b. For nonprescription medicines, the mailer must meet all applicable federal, state, or local laws that may apply (such as the Poison Prevention Packaging Act of 1970 in 15 U.S.C. 1471(2), Consumer Product Safety Commission requirements in 16 CFR 1700, etc.).
483.3 Poisonous Drugs and Medicines
Poisonous drugs and medicines may be sent only from the manufacturer or dealer to licensed physicians, surgeons, dentists, pharmacists, druggists, cosmetologists, barbers, and veterinarians (18 U.S.C. 1716). Some poisonous drugs are subject to the requirements for Division 6.1 materials in Chapter 3.
483.4 Small Amounts for Law Enforcement Purposes
Nothing in this section precludes the mailing of small amounts of unknown matter suspected of containing controlled substances to a federal, state, or local law enforcement agency for law enforcement purposes. Such mailings must comply with the applicable packaging requirements in 484.
483.5 Mailable Trade-Name Drugs and Medicines
Rulings have been made on a number of trade-name products. The following are some examples of products previously ruled to be mailable:
a. Aldifurt Balus.
b. Dicumarol.
c. Librium.
d. Listerine Antiseptic.
e. Pertussin Plus.
f. Romilar CF.
g. Romilar III.
h. Tanel Laxative.
i. Vicks Formula 44 Cough Syrup.
j. Vicks Nyquil.
483.6 Drug Paraphernalia
If the possession of any type of drug paraphernalia is unlawful under the Controlled Substances Act, the article is also nonmailable. See DMM C024.12.0 for more information.
484 Packaging and Marking
The following conditions apply:
a. Controlled substances. The inner packaging of any mailpiece containing a mailable controlled substance must be marked and sealed in accordance with the applicable provisions and regulations of the Controlled Substances Act (see 481.1). The inner packaging must be securely held within a plain outer wrapper or packaging. No markings of any kind that indicate the nature of the contents may appear on the outside of the mailpiece. The general packaging requirements in DMM C010 also apply.
b. Drugs and Medicines. Each mailpiece containing a mailable drug or medicine (that does not contain a controlled substance) must be held in a plain outer wrapper or packaging. No markings of any kind to indicate the nature of the contents may appear on the outside of the mailpiece. The general packaging requirements in DMM C010 also apply.
485 Rulings
Rulings must be based on the chemical composition of a product. However, be alert to the fact that the composition of commercial products are ever-changing, as often displayed on product packaging that declares a "new and improved formula," etc.
Because some products possess hazardous characteristics, such as flammability, requests for rulings must include the trade name of the product. A generic description of the item (e.g., tranquilizers) is not sufficient. Requests for rulings are directed to the local postmaster (see 215.3).
486 Nonmailable Matter Found in the Mails
Nonmailable controlled substances, drugs, and drug paraphernalia discovered in the mailstream must be immediately reported in accordance with POM 139.117.
487 Undeliverable Medicines
The disposition of undeliverable mailpieces containing drugs and medicines is governed by POM 691.52.
49 Unsolicited Promotional Samples
491 Definition
The term "unsolicited promotional sample" refers to any article of merchandise that is sent through the mail free of charge and that is unrequested by the addressee. This definition includes such items as patent medicines, cosmetics, laundry products, razors, etc.
492 Mailability
492.1 General
The fact that an item is unsolicited by the addressee generally does not affect its mailability unless the article is composed of hazardous materials or restricted matter. Hazardous materials are subject to the mailing conditions in Chapter 3 of this publication and DMM C023, as applicable.
492.2 Nonmailable Promotional Samples
492.21 Abortive and Contraceptive Devices or Materials
Any article or thing designed, adapted, or intended for producing abortion is nonmailable (18 U.S.C. 1461).
Unsolicited samples of an article or thing designed, adapted, or intended for preventing conception is nonmailable except when mailed to a manufacturer, dealer, licensed physician or surgeon, nurse, pharmacist/druggist, or a hospital or clinic (39 U.S.C. 3001 and 18 U.S.C. 1461). See DMM C024.19.0.
492.22 Restricted or Improperly Prepared Items
Other types of unsolicited samples may be nonmailable for other reasons, including the following:
a. The sample is an otherwise restricted item such as a toxic substance or poison subject to the hazardous materials requirements in Chapter 3 and DMM C023.
b. The sample is improperly prepared for mailing, such as an inadequately packaged razor blade or a household substance that does not comply with the child-resistant packaging required in DMM C024.13.0.
c. The sample is a pesticide subject to the restrictions in DMM C024.14.0 or a fragrance advertising sample subject to the restrictions in DMM C024.15.0.
d. The sample is an odd-shaped item in a letter-size envelope that is prohibited under DMM C024.18.0.
493 Customer Objection to Unsolicited Matter
Customers who object to receiving unsolicited matter should be advised that the Postal Service must accept any lawfully mailable matter that is properly prepared for mailing and bears appropriate postage. These customers may be directed to contact the mailer or manufacturer to have their names removed from the mailing list. Customers also may be advised they may refuse any piece of mail, either at the time it is offered for delivery or after it is delivered (if unopened), as provided in DMM D042 and POM 611.
494 Rulings
In the category of promotional samples, rulings sometimes can be provided based on the trade name of an item. However, this is not always possible. A generic description, such as razor blade, cleaner, aerosol product, or drug, is insufficient information for determining mailability. To request a ruling on the mailability of restricted matter, furnish the information in 215.3 to the local postmaster.
If the matter for which the ruling is being requested has the physical characteristics of a toxic substance, flammable liquid, compressed gas, or other hazardous material, a ruling should be requested under the conditions in 215.2.

5 Perishable Matter
51 Definition
Perishable matter is anything that can deteriorate in the mail and thereby lose value, create a health hazard, or cause an obnoxious odor, nuisance, or disturbance under ordinary mailing conditions. Mailable perishable matter may be sent at the mailer's own risk when it is packaged as required and when it can be delivered within appropriate and reasonable time limits to prevent deterioration.
Examples of perishable matter include mailable types of live animals, food items, and plants.
52 Animals
521 General Requirements
The full cooperation of the mailer is essential in order to safely and effectively transport animals through the mail. The following factors are normally applied to all shipments of mailable live or dead animals:
a. Protection of postal employees and the public against harm from dangerous or diseased animals.
b. Protection of the mail and the environment against the following:
(1) Damage to the shipping container or other mailpieces from either the animal or the refrigerant used (i.e., moisture or condensation from melting ice, or heat from dry ice).
(2) Obnoxious odors and noise.
c. Protection of animals against death, or protection of animal specimens against spoilage, taking into account the following:
(1) Expected time in transit.
(2) Expected temperature in transit (weather conditions).
(3) Packaging, including insulation against impact, heat, cold, and suffocation.
d. Ability of an animal to survive without food or water during transport. Live animals must be transported without food or water because liquids, moisture, and loose foodstuffs can cause damage to the shipping container, other mail, and postal equipment during transport.
e. The ability of the Postal Service to provide transportation and delivery service. Mailers are urged to work with postmasters in providing advance notification of shipments of live animals. The Postal Service advises destination and transfer offices when any significant quantities of animals are moving in the mail. Postal Service field personnel should consider a 4-hour time limit on the period during which animals (especially bees, day-old poultry, and adult birds) may move in a regular closed postal vehicle.
522 Packaging and Markings
522.1 Container Construction
Shipping containers for mailable live animals must, at a minimum, be made of 275-pound test, double-wall, corrugated, weather-resistant fiberboard (W5c) or equivalent. Additional requirements apply to mailable types of adult fowl and adult chickens as specified in DMM C022.3.3 and C022.3.4.
522.2 Security and Ventilation
Containers must be constructed to prevent escape of animals, prevent the crushing of the container and contents during normal handling, and provide adequate ventilation for the animals at all times.
522.3 Marking
Each mailpiece must bear a complete return address and be marked on the address side with a description of the contents (i.e., "Live Animals," "Live Honey Bees," etc.). A mailpiece marked "If Undeliverable, Abandon" may not be accepted for mailing.
523 Acceptance for Mailing
A mailpiece containing live animals that cannot reach its destination in a viable condition should not be accepted. Factors that can be taken into consideration in assessing the viability of a mailpiece containing live animals include use of proper packaging methods that protect against suffocation and crushing during transport, expected time in transit, and very extreme weather conditions that exceed the normal weather pattern along the transportation route.
This provision does not extend to postal personnel the authority to refuse mailable animals that are properly packaged or to impose local black-out periods based on temperature conditions, heavy mail volumes, etc. Postal acceptance personnel must have reasonable justification to refuse a mailpiece. Before refusing any mailpiece that contains a mailable type of animal, acceptance personnel are to confer with the manager, business mail entry at their district office or their RCSC, as appropriate.
524 Disposal
Any mailpiece containing live animals that cannot be delivered to the addressee or returned to the sender within 72 hours (for live day-old poultry) or within the delivery period marked on the parcel (for other mailable animals) must be disposed of immediately.
For safety reasons, dispose of mailpieces not marked with a delivery period when it reasonably appears the articles could not be delivered or returned in a viable condition. See POM 691.52 for disposal information. Also see 742.3 for the disposition of mailpieces that are refused by air carriers.
525 Nonmailable Live Animals
Nonmailable types of animals discovered in the mailstream must be reported in accordance with the instructions in POM 139.118. Additionally, the mailer and the post office of mailing must be notified to prevent future shipments from being incorrectly accepted for mailing.
525.1 Live Birds
Live birds, other than the type of day-old poultry specified in 526.31, are nonmailable. In addition, day-old poultry vaccinated with Newcastle disease (live virus) is nonmailable. The following are some examples of nonmailable birds:
a. Canaries.
b. Cockatiels.
c. Emus.
d. Finches.
e. Parakeets.
f. Parrots.
g. Adult birds, except those permitted under the conditions in DMM C022.3.3 and C022.3.4.
Be aware that the preceding list is not all-inclusive. Generally, all types of birds not listed in DMM C022 are nonmailable.
525.2 Live Warm-Blooded Animals
The following are examples of other live warm-blooded animals that are nonmailable:
a. Cats or kittens.
b. Dogs or puppies.
c. Guinea pigs.
d. Hamsters.
e. Mice.
f. Rabbits.
g. Rats.
h. Squirrels and flying squirrels.
525.3 Reptiles
All snakes, turtles, and poisonous reptiles are nonmailable.
525.4 Poisonous Insects and Spiders
All poisonous insects and spiders, except scorpions under limited circumstances (see 526.5), are nonmailable. Other nonpoisonous and nondisease-conveying insects are permitted as stated in DMM C022.3.8 and in Exhibit 526.6.
526 Mailable Live Animals
526.1 General
Some animals are mailable under proper conditions. See the specific instructions as noted for the following kinds of animals:
a. Live bees, 526.2 and Exhibit 526.21.
b. Live day-old poultry, 526.3 and Exhibit 526.32.
c. Live adult fowl, 526.4.
d. Live scorpions (only under limited circumstances), 526.5 and Exhibit 526.5.
e. Other small harmless cold-blooded animals, 526.6 and Exhibit 526.6.
f. Dead animals or parts of animals, 526.7 and Exhibit 526.7.
526.2 Live Bees
526.21 Mailability Requirements
Bees, including honeybees and queen honeybees, must be free of disease as required under federal and state regulations. The following additional conditions apply:
a. Honeybees. Honeybees are acceptable in the continental U.S. only via surface transportation (i.e., at Standard Mail rates). Parcels of honeybees sent at the Standard Mail rates must bear special handling postage. Mailpieces must be plainly marked on the address side with "Live Bees" and "Surface Mail Only."
b. Queen Honeybees. Queen honeybees may be sent via air transportation (i.e., Express Mail, Priority Mail, or First-Class Mail rates) or surface transportation (i.e., Standard Mail rates). When sent at a Standard Mail rate, the mailpiece must bear special handling postage. Mailpieces containing queen honeybees must be plainly marked on the address side with "Live Queen Bees."
Refer to Exhibit 526.21 for a general summary of the requirements for mailing live bees. Also see DMM C022.3.7.
Exhibit 526.21
Requirements for Mailing Live Bees

Live Bees
Contents must be queen honeybees of honeybee, Bees must be securely packaged (See DMM CO22.3.1) provide adequate air, and must be kept within a tolerable temperature range of 40 degrees F to 100 Degrees F. The use of insecticides must be eliminated in postal areas that will be occupied by bee shipments.

Air Transportation Surface Transportation
* Only queen honeybees may be shipped by air transportation (i.e., Express Mail, Priority Mail, or First-Class Mail rates).
* Alert personnel to ensure the queen honeybees' timely and safe dispatch to and arrival at destination.
* Equipment must be available for transportation up to 4th zone. An advance arrangement must be made for shipment beyond 4th zone. Any type of live honeybees may be shipped by surface transportation (i.e., Standard Mail rates).
* Alert personnel to ensure the honeybees' timely and safe dispatch to and arrival at destination.
* Equipment must be available for transportation up to 4th zone. An advance arrangement must be made for shipment beyond 4th zone.
526.22 Claims for Bee Shipments
Indemnity claims (see DMM S010) for damage, partial loss, and loss of insured shipments of mailable bees are accepted only in the following situations:
a. Death of the bees resulted from postal handling after conditions for mailability were met and when there was strong likelihood that the shipment could have been safely transported.
b. Contents were lost because of damage to the container while in postal custody.
c. The complete package was lost in the mail.
d. Special handling was purchased as required under DMM C022.3.7.
526.3 Live Day-Old Poultry
526.31 General
The following live day-old animals are acceptable for mailing when properly packaged: chickens, ducks, geese, partridges, pheasants (only during April through August), guinea fowl, quail, and turkeys. All other types of live day-old poultry are nonmailable. Day-old poultry vaccinated with Newcastle disease (live virus) is nonmailable.
526.32 Mailability Requirements
The specific types of day-old poultry named in 526.31 and DMM C022.3.1 are mailable subject to the following requirements:
a. The poultry is not more than 24 hours old and is presented for mailing in the original unopened hatchery box from the hatchery of origin.
b. The date and hour of hatching is noted on the box.
c. The box is properly ventilated, of proper construction and strength to bear safe transmission in the mail, and not stacked more than 10 units high.
d. The day-old poultry is mailed early enough in the week to avoid receipt at the office of address, in case of missed connections, on a Sunday, on a national holiday, or on the afternoon before a Sunday or national holiday.
e. The day-old poultry can be delivered to the addressee within 72 hours of the time of hatching.
f. If the day-old poultry is sent at a Standard Mail rate, special handling postage must also be paid.
g. If the day-old poultry is sent via air transportation (i.e., Express Mail, Priority Mail, or First-Class Mail), all provisions of the airlines must be met. Delivery of the mailpiece is dependent on the availability of air carriers having available equipment to safely deliver the day-old poultry within the specified time limit.
h. Day-old poultry that is first shipped via a commercial air express or air cargo service and then presented for mailing to a final destination must be in good condition and properly packaged as specified in 526.32a-e.
i. Boxes of day-old poultry of about identical size, securely fastened together to prevent separation in transit, may be accepted for mailing as a single parcel, provided the total length and girth combined does not exceed postal limits.
Also see Exhibit 526.32 for requirements for mailing live day-old poultry. See Chapter 7 for additional requirements that apply to shipments sent in domestic mail via air transportation.
526.33 Claims for Live Day-Old Poultry
Indemnity claims (see DMM S010) for damage, partial loss, and loss of insured shipments of mailable live day-old poultry are accepted only in the following situations:
a. Death of the live day-old poultry resulted from postal handling after conditions for mailability were met and when there was strong likelihood that the shipment could have been safely transported.
b. Contents were lost because of damage to the container while in postal custody.
c. The complete package was lost in the mail.
d. Special handling was purchased as required under DMM C022.3.1f.
Exhibit 526.32
Requirements for Mailing Live Day-Old Poultry

Answer each question and follow the instruction as indicated. YES NO
1. Is poultry live day-old as listed in DMM C022.3.1- If pheasants, they are mailable only during April through August. Go to No. 2. If not poultry that is day-old, item is NONMAILABLE. If not poultry or not day-old, check other mailable animal types in DMM C022 to determine mailability.
2. Was hatching time 24 hours ago or less? Go to No. 3. NONMAILABLE.
3. Was poultry presented for mailing in original, unopened hatchery box from hatchery of origin? Go to No. 4. Do not accept.
4. Are boxes properly ventilated and of proper construction and strength to bear safe transmission in mail? * Boxes are not to be stacked more than 10 high.
Go to No. 5. Do not accept.
5. Are the date and hour of hatching noted on box by representative of hatchery who has personal knowledge of facts? Go to No. 6. Do not accept.
6. Did shipment originate at other office, or was it sent by air express or air cargo and then presented for mailing? Before accepting, take special precautions to ensure that shipment is in excellent condition.
Go to No. 7. Go to No. 7.
7. Is the shipment being mailed with special handling service charge in addition to regular postage, or at the First-Class Mail rate? Go to No. 8. Shipment must bear special handling service to be mailable, except if sent at the First-Class Mail rate.
8. If shipment is COD, have all conditions for using COD service (as required in DMM S921) been met? If shipment is not COD, go to No. 9. Go to No. 9. If COD, do not accept unless all applicable requirements in DMM S921 are met.
9. Is poultry being mailed sufficiently early in week to avoid arrival at the delivery post office on Sunday or holiday, or on afternoon preceding Sunday or holiday? Go to No. 10. Do not accept.
10. Can poultry be delivered to addressee within 72 hours of time of hatching, regardless of whether addressee resides in town or on rural or highway contract route? Accept for mailing. Do not accept.
* Boxes of approximately identical size, securely fastened to prevent separation in transit, may be accepted for mailing as a single parcel if the mailpiece does not exceed the DMM limits for combined length and girth or exceed 70 pounds in weight.

526.4 Adult Fowl
526.41 General
Adult turkeys, guinea fowl, doves, pigeons, pheasants, partridges, quail, ducks, geese, swans, and chickens are mailable when properly packaged. Adult fowl must be packaged without food or water because liquids, moisture, and loose foodstuffs can cause damage to the shipping container, other mail, and postal equipment during transport.
526.42 Mailability Requirements
The following conditions apply:
a. Adult birds. The specific types of adult fowl listed in 526.41 (except adult chickens) and DMM C022.3.3 are mailable only when sent by Express Mail in biologically secure containers approved by the Manager, Business Mail Acceptance, USPS Headquarters. The number of adult birds per mailpiece must be within the container manufacturer limits, and each adult bird must weigh more than 6 ounces.
Note: A list of the names, addresses, and telephone numbers of the companies that manufacturer USPS-approved biologically secure containers is published periodically in the Postal Bulletin and can also be obtained from your RCSC.
b. Adult chickens. Adult chickens are mailable only when sent by Express Mail in containers designed to pass the standards in International Safe Transit Association (ISTA) Test Procedure 1A (detailed in Publication 2, Packaging for Mailing). The number of adult chickens per mailpiece must be within the container manufacturer limits. Containers used to mail adult chickens must meet each of the following requirements:
(1) Be designed to remain intact during normal postal processing.
(2) Be constructed to totally confine the adult chickens.
(3) Contain shavings or other absorbent material to prevent damage to the bottom of the container.
(4) Be ventilated properly to ensure humane treatment of the adult chickens while in transit.
526.43 Claims for Adult Fowl
Indemnity claims for mailable types of adult birds and chickens sent via Express Mail service are paid only for loss, damage, or rifling, and not for death of the animals while in transit if there is no visible damage to the mailing container. See DMM C022 and S010.
526.5 Live Scorpions
The mailing of scorpions is limited by the restrictions in 18 U.S.C. 1716. Under this limitation, scorpions are mailable only when sent for the purposes of medical research use or the manufacture of antivenin. Scorpions are nonmailable under any other circumstances. See Exhibit 526.5 and DMM C022.3.9 for mailing conditions that apply to permissible shipments.
Exhibit 526.5
Restrictions on Mailing Live Scorpions

Live scorpions are mailable only if EACH of the following conditions is met:
1. Must be for delivery only within the continental United States.
2. May be sent only by surface transportation.
3. Must be sent only for special purposes of either:
* Medical research use.
* Manufacture of antivenin.
4. Must be properly packaged prior to mailing as follows:
* Live scorpion is packed in a double container system, with each receptacle closed or fastened in such a way as to prevent escape.
* Inner receptacle is made of material that cannot be punctured by a scorpion.
* Inner receptacle is marked "Live Scorpion."
* Cushioning material is used to prevent shifting of the inner receptacle.
* Design of packaging is of sufficient strength, as required in DMM C022.3.10, to prevent crushing of the mailpiece or escape of the contents during normal postal handling and transport.
* Address side of mailpiece is clearly marked "Live Scorpion."
526.6 Small, Harmless, Cold-Blooded Animals
Small, harmless, cold-blooded animals, except for snakes, turtles, and turtle eggs, are mailable only when they meet certain requirements. For some examples, see Exhibit 526.6.
Exhibit 526.6
Requirements for Mailing Small, Harmless, Cold-Blooded Animals
(Except Snakes, Turtles, and Turtle Eggs)

General Requirements:
All animals in this group:
* Must be able to reach their destination in good condition in the normal transit time between the mailing and address points.
* Must not require any food, water, or attention during transport.
* Must not create sanitary problems.
Must not create obnoxious odors.
Specific Requirements by Animal:
Baby Alligators
Baby Caimans
Chameleons
Frogs
Lizards
Newts
Reptiles and Amphibians
Salamanders
* Tadpoles and Toads Animals must not exceed 20 inches in length.
* No additional requirements other than the applicable standards in DMM C022.
* Packaging must comply with DMM C022.3.10.
Goldfish
* Tropical Fish Fish must be held in a securely sealed primary receptacle.
* Primary receptacle must be cushioned with sufficient absorbent material to take up all liquid in case of leakage.
* Primary receptacle and absorbent cushioning material must be sealed within a waterproof outer (shipping) packaging.
Worms
Bloodworms
Hellgrammites
Leeches
Mealworms
* Snails No additional requirements other than the applicable standards in DMM C022.
* Packaging must comply with DMM C022.3.10.
* Nonpoisonous Insects No additional requirements other than the applicable standards in DMM C022.
* Packaging must comply with DMM C022.3.10.
526.7 Dead Animals or Parts of Animals
Dead animals or parts of animals include two groups of items:
a. Group A: Items that need to be refrigerated.
b. Group B: Items that must be dried.
See Exhibit 526.7 for additional information on the conditions for mailing.
Exhibit 526.7
Requirements for Mailing Dead Animals or Parts of Animals

GROUP A Items
Game birds, fish, or other animals to be used for food.
Animals or animal parts to be used in conservation studies or to be preserved by taxidermy Mailable only when:
* Overall requirements for animals (see 521) are met.
* A proper refrigerant is used as follows:
* Salt. The use of salt to retard spoilage can be effective.
Water ice. When water ice is used as a refrigerant, it must be packed as a liquid in a sealed, waterproof primary receptacle. The primary receptacle must be surrounded by absorbent cushioning material in a quantity sufficient to take up all water in the event of leakage. The primary receptacle and cushioning material must be securely packed within an outer (shipping) packaging.
Dry ice. When dry ice is used, it must be packaged as required in 49 CFR 173.217. It must NEVER be placed in a sealed container. In addition, sufficient cushioning material must be used so that an inner container will not become loose inside the shipping container as the dry ice sublimates.
The mailpiece is properly addressed and marked as required under DMM A010 and DMM C022.
GROUP B Items
Dried furs, hides, skins, or pelts of wild animals. Mailable only when such articles:
* Are properly dried or cured.
* Have no offensive odor.
* Are plainly marked and/or labeled on the address side with the full names and addresses of shipper and addressee, together with such endorsement(s) as may be required by state laws.
* Are securely packaged as required in DMM C022.3.10 to prevent harm to postal employees and damage to the package contents or postal equipment.
Is properly addressed and marked as required in DMM A010 and DMM C022.
53 Fresh Foods and Other Perishables
Fresh fruits and vegetables are nonmailable unless presented in a dry condition. Other perishable foods that are capable of easily decomposing or that cannot reach their destination without spoiling are nonmailable. Packaging must be strong and securely sealed as required in DMM C010.
54 Eggs
Eggs are mailable in domestic mail subject to the following general conditions:
a. They are individually cushioned.
b. They are otherwise packed to withstand shocks encountered during normal postal handling.
c. They are not likely to be harmed by anticipated temperature changes while in postal custody.
55 Meats and Meat Products
Meats and meat products are mailable in domestic mail only when they conform to regulations of the U.S. Department of Agriculture (USDA). Packaging must be strong and securely sealed as required in DMM C010.
If dry ice is used to cool meat or meat products during transport, the dry ice is subject to the mailing conditions in 349 and DMM C023.11.4.
56 Plants
561 General
The mailing of plants and plant products is subject to certain prohibitions and restrictions imposed by federal agricultural and conservation statutes. When these prohibitions and restrictions render the shipment of any plant or plant product as unlawful, then those plants and plants are nonmailable. For more information, see DMM C022; Publication 14, Prohibitions and Restrictions on Mailing Animals, Plants, and Related Matter; and Publication 4, Importing Animal and Plant Products Through Overseas Military Post Offices.
562 Quarantines
The USDA imposes quarantines on certain specific plants to prevent the introduction of agricultural diseases or pests into the United States and to prevent their spread from one part of the United States to another.
562.1 Types of Quarantines
There are domestic quarantines that apply to the continental United States; others that apply to Hawaii, Puerto Rico, and the U.S. Virgin Islands; and others that apply to other territories and possessions. Each quarantine prevents the spread of specific diseases and pests. Any plant or plant matter that is under quarantine is nonmailable.
562.2 Specific Information
Plant quarantines cover a great variety of plant diseases and pests, and all areas of the country. For more specific information, consult Publication 14, Prohibitions and Restrictions on Mailing Animals, Plants, and Related Matter.
562.3 Inspection
Plants under quarantine by the USDA may be moved from the quarantine areas only after being inspected and after a permit or certificate is issued. Refer to ASM 274.9 regarding USDA inspection of mail.
563 Packaging and Marking
563.1 General
Wettable packing materials and roots or butts of plants must be wrapped or boxed in a waterproof material. The material must be heavy enough to retain the moisture content needed for the roots of the plants without weakening the strength of the box, and must be able to endure postal handling without leakage or loss of the packing material or contents. Waterproof material means one of the following:
a. Tar-centered paper.
b. Kraft paper waxed on one side.
c. Kraft paper with a waxed or tarred paper liner.
d. Plastic wrap.
563.2 Securing Tops of Bundles
The tops of all bundles must be wrapped with a covering of paper, straw, or similar material to protect the plant from injury or drying out. If the plant has thorns or pointed projections, the wrapper must be puncture proof.
564 Further Information
For further information about specific plants or diseases, or about requirements for international shipments, consult the local county agriculture agent or the following federal agency:
ANIMAL AND PLANT HEALTH INSPECTION SERVICE
US DEPARTMENT OF AGRICULTURE
4700 RIVER RD
RIVERDALE MD 20737-1228
57 Nonmailable Plant Pests, Injurious Animals, and Illegally Taken Fish or Wildlife
571 General
Under the respective provisions in 39 U.S.C. 3015(a), (b), or (d), the following items are nonmailable:
a. Any injurious animal, the importation or interstate shipment of which is prohibited under 18 U.S.C. 42.
b. Any plant pest, the movement of which is prohibited under section 103 or 104 of the Federal Plant Pest Act (7 U.S.C. 150bb or 150cc).
c. Any fish or wildlife, the conveyance of which is prohibited under section 3 of the Lacey Act Amendments of 1981 (16 U.S.C. 3372).
For more information, see Publication 14, Prohibitions and Restrictions on Mailing Animals, Plants, and Related Matter.
572 Criminal Penalties
Criminal penalties are specified in 18 U.S.C. 1716d for mailing anything that is nonmailable under 39 U.S.C. 3015(a), (b), or (d).

6 International Mail
61 General
This chapter contains information and guidelines on the mailability of hazardous materials, restricted matter, and perishable matter that may be sent as international mail. Additional information on these subjects is contained in Chapters 3, 4, and 5; the International Mail Manual (IMM) 135-139; and DMM C022-C024.
The primary mailing regulations on which these guidelines are based are found in the IMM and DMM.
62 Hazardous Materials: International Mail
621 General Requirements
621.1 Mailing Conditions
In international commerce, the term "dangerous goods" is commonly used to describe hazardous materials.
Almost all hazardous materials are prohibited in international mail. The only mailable hazardous materials are certain infectious substances (i.e., etiologic agents and biological specimens and products), excepted quantities of radioactive material that are allowed in domestic mail, and certain magnetized materials. See Exhibit 621.1 for a summary of the types of hazardous materials that are eligible for mailing in international mail.
In certain situations, the few types of hazardous materials that are generally permitted in international mail may be further restricted by the mailing limitations imposed by an individual country. Because individual countries have unique prohibitions and restrictions, it is always necessary to consult the Individual Country Listings in the IMM to be certain that an otherwise mailable hazardous material is acceptable for shipment to a specific country.
Exhibit 621.1
DOT Hazard Classes and Mailability for International Mail

International Mail
Hazard
Class Name of Hazard Class
(and Division when applicable) Air
Transportation Surface Transportation
1 Explosives Prohibited Prohibited
2 Gases Prohibited Prohibited
3 Flammable And Combustible Liquids Prohibited Prohibited
4 Flammable Solids Prohibited Prohibited
5 Oxidizing Substances, Organic Peroxides Prohibited Prohibited
6 Toxic Substances And Infectious Substances
Division 6.1: Toxic Substances Prohibited Prohibited
Division 6.2: Infectious Substances Only registered airmail letter packages per limits in 622.2 and IMM 135 Prohibited
7 Radioactive Materials Only registered airmail letter packages per limits in 622.3 and IMM 135.6 Prohibited
8 Corrosives (liquids and solids) Prohibited Prohibited
9 Miscellaneous Hazardous Materials Prohibited, except for magnetized materials per 622.4 Prohibited, except for magnetized materials per 622.4
621.2 Hazard Classes
The nine classes of hazardous materials listed in 331 also apply to dangerous goods shipped in international commerce.
The nonpostal regulations that govern the air shipment of hazardous materials (i.e., dangerous goods) in international commerce are specified in the Technical Instructions for the Safe Transport of Dangerous Goods by Air of the International Civil Aviation Organization (ICAO). In 49 CFR, DOT recognizes the ICAO requirements for the air transportation of hazardous materials. However, 49 CFR gives DOT the authority to regulate only the domestic transportation of hazardous materials. Generally, most air carriers follow the Dangerous Goods Regulations of the International Air Transport Association (IATA), and those regulations are slightly more restrictive than the ICAO rules.
621.3 ORM-D Materials
The ORM-D category is unique within domestic commerce in the U.S. and is not recognized in international commerce. Hazardous materials that are mailable in domestic mail as ORM-D materials are prohibited in the international mail.
621.4 APO/FPO Mail
Mailpieces containing hazardous materials for delivery to overseas military post office (APO/FPO) addresses are required to meet the standards that apply for shipping hazardous materials in international mail. See DMM E010.2.0.
622 Mailable Hazardous Materials
622.1 General
As shown in Exhibit 621.1, almost all hazardous materials are prohibited in international mail. Under specific circumstances, only biological substances, limited amounts of radioactive materials, and certain magnetized materials are eligible to be sent in international mail.
622.2 Biological Substances, Division 6.2
Infectious and noninfectious biological substances are permitted in international mail subject to the provisions that apply to domestic mail in 346.2 and DMM C023.8.0. In addition, the following requirements apply:
a. Biological substances are prohibited from international mail by certain countries. To determine if a prohibition exists for a specific country, check the Individual Country Listings in the IMM.
b. Biological substances, including those of a pathogenic nature, must be sent as registered airmail letter packages.
c. Biological substances can be sent to or received by only the following types of institutions when permission has been granted:
(1) Laboratories of local, state, and federal government agencies.
(2) Laboratories of federally licensed manufacturers of biological products derived from bacteria and viruses.
(3) Laboratories affiliated with or operated by hospitals, universities, research facilities, and other teaching institutions.
(4) Private laboratories licensed, certified, recognized, or approved by a public authority.
Permission to mail biological substances must be obtained prior to mailing. Qualifying institutions wishing to mail biological substances must submit a written letter of application on its organizational letterhead to the following address:
MANAGER
INTERNATIONAL PRICING COSTING AND CLASSIFICATION INTERNATIONAL BUSINESS UNIT
US POSTAL SERVICE
475 L' ENFANT PLZ SW 370 IBU
WASHINGTON DC 20260-6500
The application must state the institution's nature of work, the identity and qualifications of the prospective recipient, and the number of packages to be mailed. Upon approval, the requisite number of biological substance mailing labels will be furnished to the mailer by the Postal Service.
d. Mailable infectious biological substances are limited to 50 ml per mailpiece and must be packaged in accordance with Packaging Instruction 6B in Appendix C, DMM C023.8.3, and the additional requirements in IMM 135.31 and 135.41.
e. Mailable noninfectious biological substances must be packaged in accordance with Packaging Instruction 6C in Appendix C, DMM C023.8.4, and the additional requirements in IMM 135.32 and 135.42.
f. A shipper's declaration for dangerous goods is required for air transportation. See 326 and 726.3.
622.3 Radioactive Materials, Class 7
Class 7 radioactive materials are permitted in international mail subject to the limits in 347 and the following conditions:
a. Radioactive materials may be sent only to those countries that have expressed a willingness to accept them. For specific details, consult the Individual Country Listings in the IMM.
b. Each radioactive materials shipment must be sent as a registered airmail letter package.
c. Each shipment must comply with both the International Atomic Energy Agency Regulations and the specifications contained in 347 and this section.
d. Mailable radioactive materials must be packaged in accordance with Packaging Instruction 7A in Appendix C and the requirements specified in IMM 135.6.
e. The sender and recipient of each radioactive materials shipment must receive prior authorization from the appropriate regulatory authorities within their countries.
f. A white package label bearing the French words "Matieres Radioactives" (Radioactive Materials) must be securely affixed, taped, or gummed to the address side of each mailpiece containing radioactive materials. The sender is responsible for supplying and affixing this label to the mailpiece.
g. The address side of each mailpiece must bear the following endorsements in bold letters: "Return To Sender in Case of Nondelivery" and "Radioactive Materials, Quantities Permitted for Movement By Post."
h. A shipper's declaration for dangerous goods is required for air transportation. See 326 and 726.3.
622.4 Magnetized Materials
Magnetized materials, as defined in 349.24, are prohibited in international mail except for those that cannot cause a compass deviation at a distance of 7 feet or more. Mailable magnetized materials must be prepared for mailing following Packaging Instruction 9B in Appendix C.
623 Nonmailable Hazardous Materials
The following types of hazardous materials, as defined in Chapter 3, DMM C023, and IMM 135-136, are prohibited in international mail:
a. Class 1, explosives (including explosive devices) (341 and DMM C023.2.0).
b. Class 2, gases (342 and DMM C023.3.0).
c. Class 3, flammable and combustible liquids (343 and DMM C023.4.0).
d. Class 4, flammable solids including matches (344 and DMM C023.5.0).
e. Class 6, oxidizing substances and organic peroxides (345 and DMM C023.6.0).
f. Class 6, Division 6.1, toxic substances (including irritants) (346 and DMM C023.7.0).
g. Class 6, Division 6.2, infectious substances (346 and DMM C023.8.0), except as permitted in 622.2.
h. Class 7, radioactive materials (347 and DMM C023.9.0), except as permitted in 622.3.
i. Class 8, corrosives (348 and DMM C023.10.0).
j. Class 9, miscellaneous hazardous materials (349 and DMM C023.11.0).
k. Dry ice (carbon dioxide solid) (349.23 and DMM C023.11.4).
l. Magnetized materials capable of causing a compass deviation at a distance of 7 feet or more (349.24 and DMM C023.11.5). See 622.4 for mailable magnetized materials.
m. ORM-D materials (333 and 621.3).
63 Restricted Matter: International Mail
631 APO/FPO Mail
Mailable restricted matter sent from, to, or between overseas military post offices (APOs/FPOs) must meet the requirements for international mail because military mail is often diverted to air transportation when space is available or when surface transportation is not available. See DMM E010.2.0.
632 Firearms
The requirements and prohibitions that apply to the mailing of firearms in domestic mail, as stated in Chapter 4 and DMM C024, also apply to international mail subject to any restrictions in the Individual Country Listings in the IMM. The mailer must obtain an export license for mailing the following firearms:
a. Nonautomatic and semiautomatic rifles, carbines, revolvers, and pistols (regardless of caliber), except those of .50 caliber or less manufactured prior to 1898.
b. Shotguns with barrels less than 18 inches long.
c. All machine guns, submachine guns, machine pistols, and fully automatic rifles.
To obtain an export license, mailers should contact the following federal agency:
OFFICE OF DEFENSE TRADE CONTROL
ARMS LICENSING DIVISION
US DEPARTMENT OF STATE
2201 C ST NW RM 200 FA6
WASHINGTON DC 20520-0602
703-875-6644
FAX: 703-875-6647
632.1 Export To APOs/FPOs
Export of firearms to certain specified overseas military post offices (APOs/FPOs) is prohibited. To determine if the mailing of firearms to a specific APO or FPO is prohibited, refer to the table titled "Conditions Applied to Mail Addressed to Military Post Offices Overseas," which is published periodically in the Postal Bulletin. Footnote F of this table lists the restrictions for mailing firearms. If the destination military post office permits the shipment of firearms (i.e., if no Footnote F restrictions are assigned to the specific APO or FPO), the mailer must present an export license obtained from the regional ATF office at the address shown in Exhibit 435.
632.2 Import
Under the following conditions, members of the armed forces may mail rifles or shotguns without an import permit:
a. Incident to a permanent change of duty or release from active duty, any member of the armed forces who has been stationed on active duty outside the United States for the preceding 60 days may, without an import permit, present up to three rifles or shotguns that are mailable under DMM C024 to the appropriate armed forces transportation officer to be forwarded to the member's residence as unaccompanied baggage officially shipped through the mail. Firearms imported in this manner must be intended for the member's personal use.
b. Any member of the armed forces who wishes to import more than three firearms mailable under DMM C024 must prepare ATF Form 6, Application and Permit for Importation of Firearms, Ammunition and Implements of War, and must comply with Department of Defense (DOD) Regulation 5030.49-R and other appropriate military directives.
c. The three-firearm limitation does not apply to firearms mailable under DMM C024 for which the member of the armed forces has proof of prior ownership in the United States. A member may personally mail these other firearms back into the United States, or to any of its possessions, if he/she can establish to the satisfaction of the U.S. Customs Service that he/she previously took the firearms out of the United States or any of its possessions.
d. Any member of the armed forces importing firearms under a, b, or c of this section must prepare ATF Form 6A, Release and Receipt of Imported Firearms, Ammunition and Implements of War, under 27 CFR 178.114(b). In addition, the member's authorized agent must furnish this form and associated certification to the customs officer releasing the firearms.
633 Knives and Sharp Instruments
Knives and sharp instruments permitted to be mailed in domestic mail under DMM C024.5.0 may be mailed in international mail as permitted in the conditions specified for the Individual Country Listings in the IMM.
634 Drugs
Drugs that are admissible in domestic mail (see Chapter 5) are also acceptable in international and military mail, provided there is no specific exclusion by the destination country or destination military post office.
635 Controlled Substances
Controlled substances are not acceptable in international mail. Controlled substances addressed to military post offices are subject to the prohibitions in DMM E010, in addition to all requirements that apply to domestic mail as contained in Chapter 4 and DMM C024.11.0.
636 Other Restricted Matter
The restricted materials listed in DMM C024.7.0 through C024.20.0 are prohibited in international mail, except if permitted in the Individual Country Listings in the IMM. These include intoxicating liquor, matter emitting obnoxious odor, liquids and powders, motor vehicle master keys, battery-powered devices, odd-shaped items in letter-size envelopes, abortive and contraceptive devices, and building construction material.
64 Perishable Matter: International Mail
641 APO/FPO Mail
Mailable perishable matter sent from, to, or between overseas military post offices (APOs/FPOs) must meet the requirements for international mail because military mail is often diverted to air transportation when space is available or when there is an absence of surface transportation. See DMM E010.2.0.
642 Animals
Most live animals are nonmailable in international mail. The only mailable types of animals are the following:
a. Live bees, leeches, and silkworms, when properly packaged and labeled. See Chapter 5.
b. Thoroughly dried dead insects or reptiles.
c. Parasites and predators of injurious insects, provided all of the following conditions are met:
(1) The parasites and predators of injurious insects are permitted in domestic mail.
(2) They are useful in controlling harmful insects.
(3) They are exchanged by officially recognized scientific or health agencies.
(4) They are sent in letter packages or as small packets.
(5) They are securely packaged in containers conforming to the requirements for domestic mail.
643 Eggs
643.1 Fresh Eggs
Eggs may be mailed in international mail via parcel post service only as follows:
a. For shipments to all countries except Canada, eggs must be packed in the following manner:
(1) Each egg must be packed in sufficient cushioning material.
(2) Eggs must be shipped in a metal egg container.
(3) The metal egg container must be enclosed in an outer container of wood with sufficient cushioning material packed between the inner and outer containers.
b. For shipments to Canada, eggs must be packed in the following manner:
(1) Each egg must be wrapped in protective material and placed on end.
(2) Eggs must be either packed in the manner prescribed for other countries in 643.1a or packed in a wooden, paper-mache, or other box of rigid material having a well-fitting, tightly adjusted lid.
(3) Vacant space in the box must be filled with packing material to prevent eggs from striking together or against the sides, top, or bottom of the box.
643.2 Dried Whole Eggs
643.21 Commodity Credit Corporation Endorsement
Dried whole eggs purchased under the USDA's Commodity Credit Corporation program must carry an endorsement by the exporter or authorized representative waiving any right to withdraw the parcel from the mail or to have it returned. The endorsement must be written or stamped on the address side of each mailpiece. These mailings may be made by parcel post service only.
643.22 Certificate
A certificate using the format shown in Exhibit 643.22 must be prepared and completed by the sender, and presented at the time of mailing. The following conditions also apply:
a. A single certificate may cover any number of mailpieces presented by the same sender and in the same mailing, even if the mailpieces are addressed to different countries.
b. A charge of 55 cents is made for each certificate or each parcel (if a single certificate covers more than one parcel).
c. Postage to cover the certificate charge must be affixed to the certificate and canceled with the postmark of the office of mailing.
d. After being postmarked, the certificate must be signed by the postmaster (or designee) and returned to the sender.
Exhibit 643.22
Certificate of Mailing for Dried Whole Eggs
I hereby certify there was posted at this post office today by [name of sender] a mailpiece(s) containing a total of [number] pounds of dried whole eggs. The sender has waived the right to withdraw same from the mail or have it returned.
The parcel(s) is/are addressed to:
[Name(s) and delivery address(es)]
[Post office stamp]
[Date]
[Signature of Postmaster]

644 Tobacco Seeds and Tobacco Plants
644.1 General
It is unlawful to export any tobacco seeds or live tobacco plants without a written permit granted by the USDA. See IMM 560 for procedures and processing requirements.
644.2 Tobacco Plant Export Permit Markings
Each wrapper of a package of mailable tobacco must be marked "Tobacco Seed and Plant Export Permit No. ______." The plant export permit must be presented at the time of mailing. It must be postmarked and signed by the accepting postal employee. The plant export permit is then retained by the postal employee and forwarded to:
AGRICULTURE MARKETING SERVICE
TOBACCO DIVISION
US DEPARTMENT OF AGRICULTURE
14TH ST AND INDEPENDENCE AVE SW
WASHINGTON DC 20250-0001
644.3 Tobacco Plant Export Permit Charges
A charge of 55 cents is made for each permit presented by the mailer and for each mailpiece when a single permit covers more than one mailpiece. Postage to cover the charge must be affixed to the permit and canceled by the postmark of the office of mailing.
645 Plants
Plants, seeds, and plant materials, including fruits and vegetables, are subject to the provisions for domestic mail in DMM C022 and Publication 14, Prohibitions and Restrictions on Mailing Animals, Plants, and Related Matter. The quarantine regulations of the destination country also apply. Mailers can obtain information by contacting the USDA at the following address:
ANIMAL AND PLANT HEALTH INSPECTION SERVICE
US DEPARTMENT OF AGRICULTURE (USDA)
4700 RIVER RD
RIVERDALE MD 20737-1228
646 Fresh Foods and Other Perishables
Fresh meats, fruits, vegetables, and other items that are capable of easily decomposing or cannot reasonably be expected to reach their destination without spoiling are nonmailable in international mail. Consult the Individual Country Listing in the IMM for specific restrictions or prohibitions.

7 Air Transportation Requirements
71 General
This chapter contains information and guidelines on the mailability of hazardous materials, restricted matter, and perishable matter in domestic mail via air transportation. Full compliance with the regulations governing the shipment of harmful matter by air transportation is essential because these materials can endanger postal employees, airline passengers and personnel, aircraft equipment, and postal equipment and facilities.
For the purposes of this chapter, air transportation requirements apply to all mailable hazardous materials, restricted matter, and perishable matter sent at an Express Mail, Priority Mail, or First-Class Mail rate of postage.
72 Hazardous Materials: Air Transportation
721 General Requirements
For domestic mail sent via air transportation, a mailpiece containing a hazardous material must:
a. Consist of a material that is permitted to be transported by air.
b. Be prepared and packaged under all applicable conditions for transport by air.
c. Be sent at an Express Mail, Priority Mail, or First-Class Mail rate of postage.
Hazardous materials are not acceptable for air transportation if they are not prepared in compliance with the specific applicable requirements. These requirements consider the degree of hazard, quantity of material, method of packaging, required shipping papers, and adequacy of labels and/or markings required for carriage aboard an aircraft.
Chapter 3 and the Packaging Instructions in Appendix C, along with the mailing standards in DMM C023, provide full details of the conditions under which mailable hazardous materials may be sent in domestic mail via air transportation.
722 Additional Requirements
722.1 APO/FPO Mail
All hazardous materials sent to, from, or between overseas military post offices (APOs/FPOs) or sent as space available mail (SAM) or parcel airlift (PAL) service must be eligible for and properly prepared for air transportation. See DMM E010.1.0 and 2.0 for more information on air transportation restrictions affecting APOs/FPOs, SAM, and PAL service.
722.2 ZIP Codes Served Only by Air Transportation
Hazardous materials that are prohibited from mailing via air transportation cannot be mailed to any ZIP Code that is serviced only by air transportation (i.e., certain ZIP Codes in Alaska).
722.3 Air Transportation Prohibitions
The following types of hazardous materials are prohibited from transport via aircraft under any circumstances:
a. Anything susceptible to damage or that can become harmful because of changes in temperature or atmospheric pressures unless protected against the effects of such changes.
b. Magnetic material that has a field strength sufficient to cause a compass deviation at a distance of 7 feet or more from any point on the outer packaging.
c. Flammable materials (gases, liquids, and solids).
d. Radioactive materials.
e. Hazardous materials excluded from air shipment by the regulations of 49 CFR 100-185, or by the applicable state (country) or air carrier operator variations.
723 Hazardous Materials Warning Labels
See 325 for information on hazardous materials warning labels. Parcels displaying any of the DOT warning labels shown in Exhibit 325a are prohibited because items required to bear those warning labels contain hazardous materials or quantities of hazardous materials that possess too great a risk to be safely handled in the mail. Parcels displaying any of the labels shown in Exhibit 325b are permitted to be mailed within specific limits set by the Postal Service and as defined in Chapter 3 and DMM C023.
724 ORM-D Materials
Hazardous materials permitted to be sent in domestic mail via air transportation must qualify as ORM-D materials, except for the few materials specified in 322 and Exhibit 331. See 333 for more information on ORM-D materials.
To be acceptable for air transportation, an ORM-D material must be eligible for shipment via air and must be properly packaged and marked. The mailpiece must also bear a shipper's declaration for dangerous goods as required in 326 and 725.3.
725 Mailer Responsibility
725.1 General
The mailer is fully responsible for properly determining the mailability of the hazardous material and for properly packaging and identifying the material for air transportation, as required.
725.2 Marking Requirements
The following are prerequisites for any mailable hazardous materials that are to be transported aboard an aircraft. Such mailpieces must be marked, as required, with the following:
a. Proper shipping name (49 CFR 172.101).
b. Identification number with the appropriate United Nations (UN) or North American (NA) prefix (not required for ORM-D materials).
c. Consignee's or shipper's name and address.
d. Package specification markings (not required for ORM-D materials).
Note: For all mailable ORM-D materials, the proper shipping name is "Consumer Commodity," and the required marking for air transportation is "ORM-D-AIR."
725.3 Shipping Papers
Most mailable hazardous materials (including ORM-D materials) must be accompanied by a Shipper's Declaration for Dangerous Goods (i.e., shipping paper, see 326). To determine which mailable hazardous materials require a shipping paper when sent via air transportation, refer to the appropriate sections in Chapter 3, the appropriate Packaging Instruction in Appendix C, and DMM C023.
The shipping paper must be properly completed and signed in triplicate by the mailer. It must bear a red candy-striped border and the exact format and same basic wording as shown in Exhibit 326. The shipper's declaration must be properly prepared as required by 49 CFR 172.200 through 172.204, which, in part, requires the following information:
a. Proper shipping name of material.
b. Hazard class.
c. UN or NA identification number, as applicable.
d. The quantity and type of packaging.
e. The packaging instruction used.
f. The full name, address, and telephone number of the shipper or consignee.
g. The signed shipper's certification statement.
Neither the Postal Service nor DOT stocks or furnishes shipper's declaration forms. Mailers may obtain them from commercial printers or stationery stores.
725.4 Addressing
The full names and addresses of both the sender and the addressee must appear legibly on the address side of the mailpiece.
726 Postal Handling
726.1 Acceptance Personnel
In addition to the basic guidelines in 251, postal personnel at window units and business mail entry units (BMEUs) must ensure the following at the time of mailing:
a. Each mailpiece presented contains a mailable hazardous material that is properly packaged and labeled.
b. If required, the mailpiece bears the required shipper's declaration for dangerous goods (see 326 and 725.3).
c. The mailpiece is eligible for air transportation and postage is paid at the Express Mail, Priority Mail, or First-Class Mail rates, as permitted.
Note: For safety reasons, mailpieces containing hazardous materials that are not eligible for air transportation cannot pay postage at an Express Mail, Priority Mail, or First-Class Mail rate and be marked "Surface Mail Only."
726.2 Dispatch Personnel
In addition to the basic guidelines in 252, postal personnel involved with mail dispatch via air transportation must follow the procedures in Memorandum of Policy OS-04-21-98, Hazardous Materials and Dangerous Goods in the Mail, and the POM. This policy statement provides the interim field instructions for handling mailpieces containing hazardous materials within mail processing areas and the proper tendering of such mail to the air carriers.
727 Refusal by Air Carrier
727.1 Air Carrier Policy or Pilot's Decision
Although a mailpiece containing a mailable hazardous material may be properly prepared for air transportation under postal mailing requirements, it is possible for it to be refused by an individual pilot. Nonmailable or improperly prepared mailpieces can also be rejected by an air carrier when tendered for shipment. Refusals can result from the following situations:
a. The air carrier is not authorized to carry hazardous materials under the provisions of the Federal Aviation Administration (FAA) Operator's Certificate.
b. The air carrier's corporate policy prohibits carrying hazardous materials.
c. The pilot of an individual flight rejects any mailpieces perceived as questionable or unsafe. Pilots have the right to refuse the boarding and transport of questionable articles that could interfere or prevent the safe operation of the aircraft under the Federal Air Regulations (FAR).
d. The mailpiece contains a nonmailable hazardous material that was mistakenly accepted or deposited in the mailstream.
e. The mailpiece is not properly packaged, marked, or labeled for air transportation.
f. The mailpiece does not carry a properly completed shipper's declaration for dangerous goods.
g. The mailpiece is unidentified as to its contents and appears to contain a hazardous material.
727.2 Handling of Mailpieces Refused by an Air Carrier
All mailpieces containing hazardous materials that are refused by an air carrier (and for which another air carrier cannot be found) must be handled as follows:
a. If the mailpiece is damaged or leaking, contact the local facility's safety officer or designee for assistance. The procedures in Handbook EL-812, Hazardous Materials and Spill Response, must be followed.
b. If the mailpiece contains a nonmailable or improperly packaged hazardous material, immediately follow the reporting procedures in POM 139.117-118, as applicable.
c. If the mailpiece contains a mailable hazardous material that is intact, attempt to contact the mailer via information from the return address or shipping papers. If the mailer can be reached, advise the mailer of the available options for rerouting the mailpiece via the most expeditious means of surface transportation (if permitted for the type of hazardous material). If the mailer agrees, correct the markings on the mailpiece to read "Surface Mail Only," and immediately dispatch the mailpiece to the destination via surface transportation.
d. If the mailer cannot be contacted, or if the mailer does not wish to have the mailpiece rerouted via surface transportation (i.e., due to nature of contents), or if the mailpiece cannot be rerouted via surface transportation to the delivery address, do the following:
(1) Endorse the address side of the mailpiece "Refused For Air Transportation by Air Carrier" and note the name of the airline, flight number, and reason for refusal.
(2) Correct the markings on the mailpiece to read "Surface Mail Only," and return the mailpiece to the sender via surface transportation (if permitted).
(3) Provide the mailer with instructions on how to obtain a refund of the postage charges because service was not provided.
(4) Complete PS Form 2759, Report of Irregular Handling of Mail, for internal postal information only and distribute copies to the appropriate postal offices. Do not send a copy to the mailer. Include the name and address of the mailer, the type and amount of hazardous material, and the reason for the air carrier's refusal.
727.3 Nonmailable or Improperly Prepared Mailpieces
Mailpieces containing nonmailable or improperly packaged hazardous materials that were inadvertently accepted for mailing will be refused by an air carrier and returned to the Postal Service when they do not meet all applicable requirements in Chapter 3, DMM C023, and the requirements of the air carrier.
728 Spills and Leaks
The standard procedures to be followed by postal personnel for dealing with spills and leaks are specified in Management Instruction EL-810-96-1, Response to Hazardous Materials Releases, and Handbook EL-812, Hazardous Materials and Spill Response.
73 Restricted Matter: Air Transportation
Restricted matter includes articles for which certain mailing restrictions have been imposed for reasons other than risk of harm to persons or property involved in moving the mail. Refer to Chapter 4 for mailing information on restricted matter.
74 Perishable Matter: Air Transportation
741 General Requirements
Perishable matter is any item that can readily deteriorate during normal mail transport conditions and thereby lose value, create a health hazard, or cause a nuisance or disturbance.
742 Live Animals
742.1 Basic Conditions
Most mailable live animals except honeybees are permitted to be sent via air transportation. However, the ability of the Postal Service to provide air transportation is dependent on the following:
a. The animal must be mailable and eligible for transport via air.
b. All provisions of airline tariffs and air carriers are met.
c. Air carrier equipment is available to the Postal Service and allows the safe delivery of shipments within specified and reasonable time limits. Time allowance must also be provided for delays en route in air and ground transportation.
Note: Local postal personnel are not authorized to refuse the deposit of mailable live animals that are properly packaged. See 523.
742.2 Bees
Only queen honeybees are permitted to be sent in the domestic mail via air transportation. See 526.2, Exhibit 526.21, and DMM C022.3.7 for more information.
742.3 Air Carrier Refusal
When an air carrier is not available to the Postal Service, or when an air carrier refuses a mailable shipment of live animals or other mailable article of perishable matter because of its company policy on safety or current extreme temperature conditions, the mailpiece is returned to the Postal Service. Mailpieces returned or refused by an air carrier must be handled as follows:
a. If the mailpiece is damaged or leaking, contact the local facility's safety officer or designee for assistance. The procedures in Handbook EL-812, Hazardous Materials and Spill Response, must be followed.
b. If the mailpiece contains a nonmailable or improperly packaged animal or other article of perishable matter, follow the reporting procedures in POM 139.117-118, as applicable. Additionally, to prevent future shipments from being incorrectly accepted for mailing, notify the mailer and the post office of mailing of the problem.
c. If the mailpiece contains mailable animals that cannot be delivered to the addressee or returned to the sender via surface transportation within 72 hours (for live day-old poultry) or within the delivery period marked on the mailpiece (for other animals), immediately dispose of it. For safety reasons, dispose of mailpieces not marked with a delivery period when it reasonably appears the articles could not be delivered or returned in a viable condition. Also dispose of, or donate to a charitable institution, any perishable matter that cannot be returned in a viable condition. See POM 691.52 for disposal information.
d. If the mailpiece contains a mailable animal or other article of perishable matter that appears to be viable and can be delivered within the specified delivery period, attempt to contact the mailer via information from the return address. If the mailer can be reached, advise the mailer of the available option for rerouting the mailpiece via the most expeditious means of surface transportation (if available). If the mailer agrees, correct the markings on the mailpiece to read "Surface Mail Only," and immediately dispatch the mailpiece to the destination via surface transportation.
e. If the mailer of a parcel containing a mailable animal or other article of perishable matter that appears to be in a viable condition cannot be contacted, and the mailpiece can be returned to the sender within the specified delivery period, do the following:
(1) Endorse the address side of the mailpiece "Refused For Air Transportation by Air Carrier" and note the name of the airline, flight number, and reason for refusal.
(2) Correct the markings on the mailpiece to read "Surface Mail Only," and return the mailpiece to the sender via surface transportation (if available).
(3) Provide the mailer with instructions on how to obtain a refund of the postage charges because service was not provided.
(4) Complete PS Form 2759, Report of Irregular Handling of Mail, for internal postal information only and distribute copies to the appropriate postal offices. Do not send a copy to the mailer. Include the name and address of the mailer, the type and quantity of animals, and the reason for the air carrier's refusal.
743 Perishable Matter with Dry Ice
A mailpiece containing mailable matter that is packed in dry ice (carbon dioxide solid) to cool the perishable contents must meet all requirements in 349 that apply to sending dry ice in domestic mail via air transportation. For air transportation, the amount of dry ice cannot exceed 5 pounds per mailpiece. Dry ice is prohibited in international mail.

Appendix A
Hazardous Materials Table:
Postal Service Mailability Guide
The mailing information in this table is based on the DOT Hazardous Materials Table in 49 CFR 172.101 (dated October 1, 1998, and the revisions published in Federal Register 10742, dated March 5, 1999). The information is modified to identify the mailability of each hazardous material based on Postal Service mailing regulations. This table identifies the mailability of hazardous materials for domestic mail only. Almost no hazardous materials are permitted in international mail. For information on mailability in international mail, see Chapter 6 and Exhibit 621.1.
In the domestic mail, generally only those hazardous materials that can be reclassed as an ORM-D material and renamed with the proper shipping name of "Consumer Commodity" are eligible for mailing subject to the postal quantity limitations. The only exceptions are for the small number of materials listed in 322.
The columns in the table contain the following information:
Column (a): Lists the proper shipping name of the hazardous material in roman type. Text that appears in italic type is not part of the proper shipping name of the hazardous material and is listed for descriptive or reference purposes. Some listings direct the user to the preferred proper shipping name of a material listed elsewhere in the table. The text in this column closely matches the information in Column 2 of the Hazardous Materials Table in 49 CFR 172.101.
Column (b): Lists the assigned hazard class or division of the hazardous material. The entry "Forbidden" means the material may not be transported under any circumstances. The entry "n/a" means the material does not have an assigned hazard class. If this field is shaded, refer to the listing for the preferred proper shipping name cited in Column (a). The text in this column closely matches the information in Column 3 of the Hazardous Materials Table in 49 CFR 172.101.
Column (c): Lists the identification (ID) number assigned to the hazardous material. The number may be either a United Nations (UN) number or a North American (NA) number. This field is shaded if Column (a) directs the user to the listing for the preferred proper shipping name of the material, or if the entry in Column (b) is "Forbidden." The text in this column closely matches the information in Column 4 of the Hazardous Materials Table in 49 CFR 172.101.
Column (d): Lists the DOT Packing Group (PG) assignment for the hazardous material. Not all hazard classes have DOT Packing Group assignments. If this field contains "n/a," the material is in a hazard class that does not use Packing Group assignments. This field is shaded if Column (a) directs the user to the listing for the preferred proper shipping name of the material, or if the entry in Column (b) is "Forbidden." The text in this column closely matches the information in Column 5 of the Hazardous Materials Table in 49 CFR 172.101.
Column (e): Lists the mailability of the hazardous material according to Postal Service regulations. If the entry is "Prohibited," the material is nonmailable. If the entry cites a reference to this publication or the DMM, the material is subject to those requirements and restrictions. If the entry is "Only ORM-D," the material is mailable only if it can be reclassed as an ORM-D material and renamed with the proper shipping name of "Consumer Commodity" as permitted in 49 CFR. Mailable ORM-D materials cannot exceed the postal quantity limits specified in this publication and DMM C023. The mailer is responsible for correctly determining if the hazardous material is eligible to be reclassed as an ORM-D material. If assistance is needed, the mailer may request a ruling from the RCSC as provided in 215.2 and DMM C023.1.5. If the hazardous material is mailable in the domestic mail, refer to Column (f) and (g), as appropriate, to determine the applicable postal packaging instruction in Appendix C.
Column (f): Lists the packaging instruction in Appendix C that must be followed if the hazardous material is permitted in domestic mail via air transportation. This field is shaded if Column (a) directs the user to the listing for the preferred proper shipping name of the material, or if the hazardous material is prohibited from mailing as designated in Column (e). If the entry in this column is "Prohibited," the material is not permitted in domestic mail via air transportation.
Column (g): Lists the packaging instruction in Appendix C that must be followed if the hazardous material is permitted in domestic mail via surface transportation. This field is shaded if Column (a) directs the user to the listing for the preferred proper shipping name of the material, or if the hazardous material is prohibited from mailing as designated in Column (e). If the entry in this column is "Prohibited," the material is not permitted in domestic mail via surface transportation.

USPS Packaging Instructions
Hazardous Materials Descriptions and
Proper Shipping Names
(a) Hazard Class
(b) ID Number
(c) DOT
PG
(d) USPS
Mailability
(e) Domestic Mail Air
(f) Domestic Mail Surface
(g)
- A -
Accellerene, see p-Nitrosodimethylaniline
Accumulators, electric, see Batteries, wet etc.
Accumulators, pressurized, pneumatic or hydraulic (containing nonflammable gas) 2.2 NA1956 n/a Only ORM-D 2B 2B
Acetal 3 UN1088 II Only ORM-D Prohibited 3A
Acetaldehyde 3 UN1089 I Prohibited
Acetaldehyde ammonia 9 UN1841 III Only ORM-D 9C 9C
Acetaldehyde oxime 3 UN2332 III Only ORM-D Prohibited 3A
Acetic acid, glacial or Acetic acid solution, with more than 80 percent acid, by mass 8 UN2789 II Only ORM-D 8A 8A
Acetic acid solution, not less than 50 percent but not more than 80 percent acid, by mass 8 UN2790 II Only ORM-D per 348.22 8A 8A
Acetic acid solution, with more than 10 percent and less than 50 percent acid, by mass 8 UN2790 III Only ORM-D per 348.22 8A 8A
Acetic anhydride 8 UN1715 II Only ORM-D 8A 8A
Acetone 3 UN1090 II Only ORM-D Prohibited 3A
Acetone cyanohydrin, stabilized 6.1 UN1541 I Prohibited
Acetone oils 3 UN1091 II Only ORM-D Prohibited 3A
Acetonitrile 3 UN1648 II Only ORM-D Prohibited 3A
Acetyl acetone peroxide with more than 9 percent by mass active oxygen Forbidden Prohibited
Acetyl benzoyl peroxide, solid, or with more than 40 percent in solution Forbidden Prohibited
Acetyl bromide 8 UN1716 II Only ORM-D 8A 8A
Acetyl chloride 3 UN1717 II Prohibited
Acetyl cyclohexanesulfonyl peroxide, with more than 82 percent wetted with less than 12 percent water Forbidden Prohibited
Acetyl iodide 8 UN1898 II Only ORM-D 8A 8A
Acetyl methyl carbinol 3 UN2621 III Only ORM-D Prohibited 3A
Acetyl peroxide, solid, or with more than 25 percent in solution Forbidden Prohibited
Acetylene, dissolved 2.1 UN1001 n/a Prohibited
Acetylene (liquefied) Forbidden Prohibited
Acetylene silver nitrate Forbidden Prohibited
Acetylene tetrabromide, see Tetrabromoethane
Acid butyl phosphate, see Butyl acid phosphate
Acid, sludge, see Sludge, acid
Acridine 6.1 UN2713 III Only ORM-D 6A 6A
Acrolein dimer, stabilized 3 UN2607 III Only ORM-D Prohibited 3A
Acrolein, inhibited 6.1 UN1092 I Prohibited
Acrylamide 6.1 UN2074 III Only ORM-D 6A 6A
Acrylic acid, inhibited 8 UN2218 II Only ORM-D 8A 8A

Acrylonitrile, inhibited 3 UN1093 I Prohibited
Actuating cartridge, explosive, see Cartridges, power device
Adhesives, containing a flammable liquid 3 UN1133 I, II, III Only ORM-D Prohibited 3A
Adiponitrile 6.1 UN2205 III Only ORM-D 6A 6A
Aerosols, corrosive, Packing Group II or III, (each not exceeding 1 L capacity) 2.2 UN1950 n/a Only ORM-D 2B 2B
Aerosols, flammable (each not exceeding 1 L capacity) 2.1 UN1950 n/a Only ORM-D Prohibited 2A
Aerosols, flammable, n.o.s. (engine starting fluid) (each not exceeding 1 L capacity) 2.1 UN1950 n/a Only ORM-D Prohibited 2A
Aerosols, nonflammable (each not exceeding 1 L capacity) 2.2 UN1950 n/a Only ORM-D 2B 2B
Aerosols, poison, each not exceeding 1 L capacity 2.2 UN1950 n/a Only ORM-D 2B 2B
Air bag inflators, compressed gas or Air bag modules, compressed gas or Seat-belt pretensioners, compressed gas 2.2 UN3353 n/a Prohibited
Air bag inflators, pyrotechnic or Air bag modules, pyrotechnic or Seat-belt pretensioners, pyrotechnic 9 UN3268 III Prohibited
Air, compressed 2.2 UN1002 n/a Only ORM-D 2B 2B
Air, refrigerated liquid (cryogenic liquid) 2.2 UN1003 n/a Prohibited
Air, refrigerated liquid (cryogenic liquid), non-pressurized 2.2 UN1003 n/a Prohibited
Aircraft evacuation slides, see Life-saving appliances etc.
Aircraft hydraulic power unit fuel tank (containing a mixture of anhydrous hydrazine and monomethyl hydrazine) (M86 fuel) 3 UN3165 I Prohibited
Aircraft survival kits, see Life-saving appliances etc.
Alcoholates solution, n.o.s., in alcohol 3 UN3274 II Prohibited
Alcoholic beverages 3 UN3065 II, III Prohibited (by 18 USC 1716)
Alcohols, n.o.s. 3 UN1987 I Prohibited
Alcohols, n.o.s. 3 UN1987 II, III Only ORM-D Prohibited 3A
Alcohols, flammable, toxic, n.o.s. 3 UN1986 I, II, III Prohibited
Aldehydes, n.o.s. 3 UN1989 I Prohibited
Aldehydes, n.o.s. 3 UN1989 II, III Only ORM-D Prohibited 3A
Aldehydes, flammable, toxic, n.o.s. 3 UN1988 I, II Prohibited
Aldehydes, flammable, toxic, n.o.s. 3 UN1988 III Only ORM-D Prohibited 3A
Aldol 6.1 UN2839 II Prohibited
Aldrin, liquid 6.1 NA2762 II Prohibited
Aldrin, solid 6.1 NA2761 II Prohibited
Alkali metal alcoholates, self-heating, corrosive, n.o.s. 4.2 UN3206 II, III Prohibited
Alkali metal alloys, liquid, n.o.s. 4.3 UN1421 I Prohibited
Alkali metal amalgam, liquid 4.3 UN1389 I Prohibited
Alkali metal amalgam, solid 4.3 UN1389 I Prohibited
Alkali metal amides 4.3 UN1390 II Only ORM-D Prohibited 4A
Alkali metal dispersions, or Alkaline earth metal dispersions 4.3 UN1391 I Prohibited
Alkaline corrosive liquids, n.o.s., see Caustic alkali liquids, n.o.s.
Alkaline earth metal alcoholates, n.o.s. 4.2 UN3205 II, III Prohibited
Alkaline earth metal alloys, n.o.s. 4.3 UN1393 II Only ORM-D Prohibited 4A
Alkaline earth metal amalgams 4.3 UN1392 I Prohibited
Alkaloids, liquid, n.o.s., or Alkaloid salts, liquid, n.o.s. 6.1 UN3140 I, II Prohibited
Alkaloids, liquid, n.o.s., or Alkaloid salts, liquid, n.o.s. 6.1 UN3140 III Only ORM-D 6A 6A
Alkaloids, solid, n.o.s. or Alkaloid salts, solid, n.o.s. poisonous 6.1 UN1544 I, II Prohibited
Alkaloids, solid, n.o.s. or Alkaloid salts, solid, n.o.s. poisonous 6.1 UN1544 III Only ORM-D 6A 6A
Alkyl sulfonic acids, liquid or Aryl sulfonic acids, liquid with more than 5 percent free sulfuric acid 8 UN2584 II Only ORM-D and per 348.2 8A 8A
Alkyl sulfonic acids, liquid or Aryl sulfonic acids, liquid with not more than 5 percent free sulfuric acid 8 UN2586 III Only ORM-D 8A 8A
Alkyl sulfonic acids, solid or Aryl sulfonic acids, solid with more than 5 percent free sulfuric acid 8 UN2583 II Only ORM-D and per 348.2 8A 8A
Alkyl sulfonic acids, solid or Aryl sulfonic acids, solid with not more than 5 percent free sulfuric acid 8 UN2585 III Only ORM-D 8A 8A
Alkylphenols, liquid, n.o.s. (including C2-C12 homologues) 8 UN3145 I Prohibited
Alkylphenols, liquid, n.o.s. (including C2-C12 homologues) 8 UN3145 II, III Only ORM-D 8A 8A
Alkylphenols, solid, n.o.s. (including C2-C12 homologues) 8 UN2430 I Prohibited
Alkylphenols, solid, n.o.s. (including C2-C12 homologues) 8 UN2430 II, III Only ORM-D 8A 8A
Alkylsulfuric acids 8 UN2571 II Only ORM-D 8A 8A
Allethrin, see Pesticides, liquid, toxic, n.o.s.
Allyl acetate 3 UN2333 II Prohibited
Allyl alcohol 6.1 UN1098 I Prohibited
Allyl bromide 3 UN1099 I Prohibited
Allyl chloride 3 UN1100 I Prohibited
Allyl chlorocarbonate, see Allyl chloroformate
Allyl chloroformate 6.1 UN1722 I Prohibited
Allyl ethyl ether 3 UN2335 II Prohibited
Allyl formate 3 UN2336 I Prohibited
Allyl glycidyl ether 3 UN2219 III Only ORM-D Prohibited 3A
Allyl iodide 3 UN1723 II Prohibited
Allyl isothiocyanate, stabilized 6.1 UN1545 II Prohibited
Allylamine 6.1 UN2334 I Prohibited
Allyltrichlorosilane, stabilized 8 UN1724 II Prohibited
Aluminum alkyl halides 4.2 UN3052 I Prohibited
Aluminum alkyl hydrides 4.2 UN3076 I Prohibited
Aluminum alkyls 4.2 UN3051 I Prohibited
Aluminum borohydride or Aluminum borohydride in devices 4.2 UN2870 I Prohibited
Aluminum bromide, anhydrous 8 UN1725 II Only ORM-D 8A 8A
Aluminum bromide, solution 8 UN2580 III Only ORM-D 8A 8A
Aluminum carbide 4.3 UN1394 II Only ORM-D Prohibited 4A
Aluminum chloride, anhydrous 8 UN1726 II Only ORM-D 8A 8A
Aluminum chloride, solution 8 UN2581 III Only ORM-D 8A 8A
Aluminum dross, wet or hot Forbidden Prohibited
Aluminum ferrosilicon powder 4.3 UN1395 II, III Only ORM-D Prohibited 4A
Aluminum hydride 4.3 UN2463 I Prohibited
Aluminum, molten 9 NA9260 III Prohibited
Aluminum, nitrate 5.1 UN1438 III Only ORM-D 5A 5A
Aluminum phosphate solution, see Corrosive liquids, etc.
Aluminum phosphide 4.3 UN1397 I Prohibited
Aluminum phosphide pesticides 6.1 UN3048 I Prohibited
Aluminum powder, coated 4.1 UN1309 II, III Only ORM-D Prohibited 4A
Aluminum powder, uncoated 4.3 UN1396 II, III Only ORM-D Prohibited 4A
Aluminum resinate 4.1 UN2715 III Only ORM-D Prohibited 4A
Aluminum silicon powder, uncoated 4.3 UN1398 III Only ORM-D Prohibited 4A
Aluminum smelting by-products or Aluminum remelting by-products 4.3 UN3170 II, III Prohibited
Amatols, see Explosives, blasting, type B
Amines, flammable, corrosive, n.o.s. or Polyamines, flammable, corrosive, n.o.s. 3 UN2733 I, II Prohibited
Amines, flammable, corrosive, n.o.s. or Polyamines, flammable, corrosive, n.o.s. 3 UN2733 III Only ORM-D Prohibited 3A
Amines, liquid, corrosive, flammable, n.o.s. or Polyamines, liquid, corrosive, flammable, n.o.s. 8 UN2734 I, II Prohibited
Amines, liquid, corrosive, n.o.s. or Polyamines, liquid, corrosive, n.o.s. 8 UN2735 I Prohibited
Amines, liquid, corrosive, n.o.s. or Polyamines, liquid, corrosive, n.o.s. 8 UN2735 II, III Only ORM-D 8A 8A
Amines, solid, corrosive, n.o.s. or Polyamines, solid, corrosive, n.o.s. 8 UN3259 I Prohibited
Amines, solid, corrosive, n.o.s. or Polyamines, solid, corrosive, n.o.s. 8 UN3259 II, III Only ORM-D 8A 8A
2-Amino-4-chlorophenol 6.1 UN2673 II Prohibited
2-Amino-5-diethylaminopentane 6.1 UN2946 III Only ORM-D 6A 6A
2-Amino-4,6-Dinitrophenol, wetted with not less than 20 percent water by mass 4.1 UN3317 I Prohibited
2-(2-Aminoethoxy) ethanol 8 UN3055 III Only ORM-D 8A 8A
N-Aminoethylpiperazine 8 UN2815 III Only ORM-D 8A 8A
Aminophenols (o-; m-; p-) 6.1 UN2512 III Only ORM-D 6A 6A
Aminopropyldiethanolamine, see Amines, etc.
n-Aminopropylmorpholine, see Amines, etc.
Aminopyridines (o-; m-; p-) 6.1 UN2671 II Prohibited
Ammonia, anhydrous 2.3 UN1005 n/a Prohibited
Ammonia, anhydrous 2.2 UN1005 n/a Prohibited
Ammonia solution, relative density between 0.880 and 0.957 at 15 degrees C in water, with more than 10 percent but not more than 35 percent ammonia 8 UN2672 III Only ORM-D and per 348.2 8A 8A
Ammonia solution, relative density less than 0.880 at 15 degrees C in water, with more than 35 percent but not more than 50 percent ammonia 2.2 UN2073 n/a Prohibited
Ammonia solution, relative density less than 0.880 at 15 degrees C in water, with more than 50 percent ammonia 2.2 UN3318 n/a Prohibited
Ammonia solution, relative density less than 0.880 at 15 degrees C in water, with more than 50 percent ammonia 2.3 UN3318 n/a Prohibited
Ammonium arsenate 6.1 UN1546 II Prohibited
Ammonium azide Forbidden Prohibited
Ammonium bifluoride, solid, see Ammonium hydrogendifluoride, solid
Ammonium bifluoride, solution, see Ammonium hydrogendifluoride, solution
Ammonium bromate Forbidden Prohibited
Ammonium chlorate Forbidden Prohibited
Ammonium dichromate 5.1 UN1439 II Only ORM-D 5A 5A
Ammonium dintro-o-cresolate 6.1 UN1843 II Prohibited
Ammonium fluoride 6.1 UN2505 III Only ORM-D 6A 6A
Ammonium fluorosilicate 6.1 UN2854 III Only ORM-D 6A 6A
Ammonium fulminate Forbidden Prohibited
Ammonium hydrogen sulfate 8 UN2506 II Only ORM-D 8A 8A
Ammonium hydrogendifluoride, solid 8 UN1727 II Only ORM-D 8A 8A
Ammonium hydrogendiflouride, solution 8 UN2817 II Prohibited
Ammonium hydrogendiflouride, solution 8 UN2817 III Only ORM-D 8A 8A
Ammonium hydrosulfide, solution, see Ammonium sulfide solution
Ammonium hydroxide, see Ammonia solutions, etc.
Ammonium metavanadate 6.1 UN2859 II Prohibited
Ammonium nitrate fertilizers 5.1 NA2072 III Only ORM-D 5A 5A
Ammonium nitrate fertilizers; uniform non-segregating mixtures of ammonium nitrate with added matter which is inorganic and chemically inert towards ammonium nitrate, with not less than 90 percent ammonium nitrate and not more than 0.2 percent combustible material (including organic material calculated as carbon), or with more than 70 percent but less than 90 percent ammonium nitrate and not more than 0.4 percent total combustible material 5.1 UN2067 III Only ORM-D 5A 5A
Ammonium nitrate fertilizers: uniform non-segregating mixtures of nitrogen/phosphate or nitrogen/potash types or complete fertilizers of nitrogen/phosphate/potash type, with not more than 70 percent ammonium nitrate and not more than 0.4 percent total added combustible material or with not more than 45 percent ammonium nitrate with unrestricted combustible material 9 UN2071 III Only ORM-D 9C 9C
Ammonium nitrate-fuel oil mixture containing only prilled ammonium nitrate and fuel oil 1.5D NA0331 II Prohibited
Ammonium nitrate, liquid (hot concentrated solution) 5.1 UN2426 n/a Prohibited
Ammonium nitrate mixed fertilizers 5.1 NA2069 III Only ORM-D 5A 5A
Ammonium nitrate, with more than 0.2 percent combustible substances, including any organic substance calculated as carbon, to the exclusion of any other added substance 1.1D UN0222 II Prohibited
Ammonium nitrate, with not more than 0.2 percent of combustible substances, including any organic substance calculated as carbon, to the exclusion of any other added substance 5.1 UN1942 III Only ORM-D 5A 5A
Ammonium nitrate Forbidden Prohibited
Ammonium perchlorate 1.1D UN0402 II Prohibited
Ammonium perchlorate 5.1 UN1442 II Only ORM-D 5A 5A
Ammonium permanganate Forbidden Prohibited
Ammonium persulfate 5.1 UN1444 III Only ORM-D 5A 5A
Ammonium picrate, dry or wetted with less than 10 percent water, by mass 1.1D UN0004 II Prohibited
Ammonium picrate, wetted with not less than 10 percent water, by mass 4.1 UN1310 I Prohibited
Ammonium polysulfide, solution 8 UN2818 II Prohibited
Ammonium polysulfide, solution 8 UN2818 III Only ORM-D 8A 8A
Ammonium polyvanadate 6.1 UN2861 II Prohibited 6A 6A
Ammonium silicofluoride, see Ammonium fluorosilicate
Ammonium sulfide solution 8 UN2683 II Prohibited
Ammunition, blank, see Cartridges for weapons, blank
Ammunition, illuminating with or without burster, expelling charge, or propelling charge 1.2G UN0171 II Prohibited
Ammunition, illuminating with or without burster, expelling charge, or propelling charge 1.3G UN0254 II Prohibited
Ammunition, illuminating with or without burster, expelling charge, or propelling charge 1.4G UN0297 II Prohibited
Ammunition, incendiary liquid or gel, with burster, expelling charge, or propelling charge 1.3J UN0247 II Prohibited
Ammunition, incendiary (water-activated contrivances) with burster, expelling charge, or propelling charge, see Contrivances, water-activated, etc.
Ammunition, incendiary, white phosphorus, with burster, expelling charge, or propelling charge 1.2H UN0243 II Prohibited
Ammunition, incendiary, white phosphorus, with burster, expelling charge, or propelling charge 1.3H UN0244 II Prohibited
Ammunition, incendiary with or without burster, expelling charge, or propelling charge 1.2G UN0009 II Prohibited
Ammunition, incendiary with or without burster, expelling charge, or propelling charge 1.3G UN0010 II Prohibited
Ammunition, incendiary with or without burster, expelling charge, or propelling charge 1.4G UN0300 II Prohibited
Ammunition, practice 1.4G UN0362 II Prohibited
Ammunition, practice 1.3G UN0488 II Prohibited
Ammunition, proof 1.4G UN0363 II Prohibited
Ammunition, rocket, see Warheads, rocket etc.
Ammunition, SA (small arms), see Cartridges for weapons, etc.
Ammunition, smoke (water-activated contrivances), white phosphorus, with burster, expelling charge, or propelling charge, see Contrivances, water-activated, etc. (UN0248)
Ammunition, smoke (water-activated contrivances), without white phosphorus or phosphides, with burster, expelling charge, or propelling charge, see Contrivances, water-activated, etc. (UN0249)
Ammunition smoke, white phosphorus with burster, expelling charge, or propelling charge 1.2H UN0245 II Prohibited
Ammunition, smoke, white phosphorus with burster, expelling charge, or propelling charge 1.3H UN0246 II Prohibited
Ammunition, smoke, with or without burster, expelling charge, or propelling charge 1.2G UN0015 II Prohibited
Ammunition, smoke, with or without burster, expelling charge, or propelling charge 1.3G UN0016 II Prohibited
Ammunition, smoke, with or without burster, expelling charge, or propelling charge 1.4G UN0303 II Prohibited
Ammunition, sporting, see Cartridges for weapons, etc. (UN0012; UN0328; UN0339)
Ammunition, tear-producing, non-explosive, without burster or expelling charge, non-fuzed 6.1 UN2017 II Prohibited
Ammunition, tear-producing with burster, expelling charge, or propelling charge 1.2G UN0018 II Prohibited
Ammunition, tear-producing with burster, expelling charge, or propelling charge 1.3G UN0019 II Prohibited
Ammunition, tear-producing with burster, expelling charge, or propelling charge 1.4G UN0301 II Prohibited
Ammunition, toxic (water-activated contrivances), with burster, expelling charge, or propelling charge, see Contrivances, water-activated, etc.
Ammunition, toxic, non-explosive, without burster or expelling charge, non-fuzed 6.1 UN2016 II Prohibited
Ammunition, toxic with burster, expelling charge, or propelling charge 1.2K UN0020 II Prohibited
Ammunition, toxic with burster, expelling charge, or propelling charge 1.3K UN0021 II Prohibited
Amyl acetates 3 UN1104 III Only ORM-D Prohibited 3A
Amyl acid phosphate 8 UN2819 III Only ORM-D 8A 8A
Amyl butyrates 3 UN2620 III Only ORM-D Prohibited 3A
Amyl chlorides 3 UN1107 II Only ORM-D Prohibited 3A
Amyl formates 3 UN1109 III Only ORM-D Prohibited 3A
Amyl mercaptans 3 UN1111 II Prohibited
n-Amyl methyl ketone 3 UN1110 III Only ORM-D Prohibited 3A
Amyl nitrate 3 UN1112 III Only ORM-D Prohibited 3A
Amyl nitrites 3 UN1113 II Only ORM-D Prohibited 3A
Amylamines 3 UN1106 II Prohibited
Amylamines 3 UN1106 III Only ORM-D Prohibited 3A
Amyltrichlorosilane 8 UN1728 II Prohibited
Anhydrous ammonia see Ammonia, anhydrous, liquefied
Anhydrous hydrofluoric acid, see Hydrogen fluoride, anhydrous
Aniline 6.1 UN1547 II Prohibited
Aniline hydrochloride 6.1 UN1548 III Only ORM-D 6A 6A
Aniline oil, see Aniline
Anisidines 6.1 UN2431 III Only ORM-D 6A 6A
Anisole 3 UN2222 III Only ORM-D Prohibited 3A
Anisoyl chloride 8 UN1729 II Only ORM-D 8A 8A
Anti-freeze, liquid, see Flammable liquids, n.o.s
Antimonous chloride, see Antimony trichloride
Antimony compounds, inorganic, liquid, n.o.s. 6.1 UN3141 III Only ORM-D 6A 6A
Antimony compounds, inorganic, solid, n.o.s. 6.1 UN1549 III Only ORM-D 6A 6A
Antimony lactate 6.1 UN1550 III Only ORM-D 6A 6A
Antimony pentachloride, liquid 8 UN1730 II Prohibited
Antimony pentachloride, solutions 8 UN1731 II, III Only ORM-D 8A 8A
Antimony pentafluoride 8 UN1732 II Prohibited
Antimony potassium tartrate 6.1 UN1551 III Only ORM-D 6A 6A
Antimony powder 6.1 UN2871 III Only ORM-D 6A 6A
Antimony sulfide and a chlorate, mixtures of Forbidden Prohibited
Antimony sulfide, solid, see Antimony compounds, inorganic, n.o.s.
Antimony tribromide, solid 8 NA1549 II Only ORM-D 8A 8A
Antimony tribromide, solution 8 NA1549 II Only ORM-D 8A 8A
Antimony trichloride, liquid 8 UN1733 II Only ORM-D 8A 8A
Antimony trichloride, solid 8 UN1733 II Only ORM-D 8A 8A
Antimony, trifluoride, solid 8 NA1549 II Only ORM-D 8A 8A
Antimony, trifluoride, solution 8 NA1549 II Only ORM-D 8A 8A
Aqua ammonia, see Ammonia solution, etc.
Argon, compressed 2.2 UN1006 n/a Only ORM-D 2B 2B
Argon, refrigerated liquid (cryogenic liquid) 2.2 UN1951 n/a Prohibited
Arsenic 6.1 UN1558 II Prohibited
Arsenic acid, liquid 6.1 UN1553 I Prohibited
Arsenic acid, solid 6.1 UN1554 II Prohibited
Arsenic bromide 6.1 UN1555 II Prohibited
Arsenic chloride, see Arsenic trichloride
Arsenic compounds, liquid, n.o.s. inorganic, including arsenates, n.o.s.; arsenites, n.o.s.; arsenic sulfides, n.o.s.; and organic compounds of arsenic, n.o.s. 6.1 UN1556 I, II Prohibited
Arsenic compounds, liquid, n.o.s. inorganic, including arsenates, n.o.s.; arsenites, n.o.s.; arsenic sulfides, n.o.s.; and organic compounds of arsenic, n.o.s. 6.1 UN1556 III Only ORM-D 6A 6A
Arsenic compounds, solid, n.o.s. inorganic, including arsenates, n.o.s.; arsenites, n.o.s.; arsenic sulfides, n.o.s.; and organic compounds of arsenic, n.o.s. 6.1 UN1557 I, II Prohibited
Arsenic compounds, solid, n.o.s. inorganic, including arsenates, n.o.s.; arsenites, n.o.s.; arsenic sulfides, n.o.s.; and organic compounds of arsenic, n.o.s. 6.1 UN1557 III Only ORM-D 6A 6A
Arsenic pentoxide 6.1 UN1559 II Prohibited
Arsenic sulfide 6.1 NA1557 II Prohibited
Arsenic sulfide and a chlorate, mixtures of Forbidden Prohibited
Arsenic trichloride 6.1 UN1560 I Prohibited
Arsenic trioxide 6.1 UN1561 II Prohibited
Arsenic trisulfide 6.1 NA1557 II Prohibited
Arsenic, white, solid, see Arsenic trioxide
Arsenical dust 6.1 UN1562 II Prohibited
Arsenical pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C 3 UN2760 I, II Prohibited
Arsenical pesticides, liquid, toxic 6.1 UN2994 I, II Prohibited
Arsenical pesticides, liquid, toxic 6.1 UN2994 III Only ORM-D 6A 6A
Arsenical pesticides, liquid, toxic, flammable flashpoint not less than 23 degrees C 6.1 UN2993 I, II Prohibited
Arsenical pesticides, liquid, toxic, flammable flashpoint not less than 23 degrees C 6.1 UN2993 III Only ORM-D 6A 6A
Arsenical pesticides, solid, toxic 6.1 UN2759 I, II Prohibited
Arsenical pesticides, solid, toxic 6.1 UN2759 III Only ORM-D 6A 6A
Arsenious acid, solid, see Arsenic trioxide
Arsenious and mercuric iodide solution, see Arsenic compounds, liquid, n.o.s.
Arsine 2.3 UN2188 n/a Prohibited
Articles, explosive, extremely insensitive or Articles, EEI 1.6N UN0486 II Prohibited
Articles, explosive, n.o.s. 1.4S UN0349 II Prohibited
Articles, explosive, n.o.s. 1.4B UN0350 II Prohibited
Articles, explosive, n.o.s. 1.4C UN0351 II Prohibited
Articles, explosive, n.o.s. 1.4D UN0352 II Prohibited
Articles, explosive, n.o.s. 1.4G UN0353 II Prohibited
Articles, explosive, n.o.s. 1.1L UN0354 II Prohibited
Articles, explosive, n.o.s. 1.2L UN0355 II Prohibited
Articles, explosive, n.o.s. 1.3L UN0356 II Prohibited
Articles, explosive, n.o.s. 1.1C UN0462 II Prohibited
Articles, explosive, n.o.s. 1.1D UN0463 II Prohibited
Articles, explosive, n.o.s. 1.1E UN0464 II Prohibited
Articles, explosive, n.o.s. 1.1F UN0465 II Prohibited
Articles, explosive, n.o.s. 1.2C UN0466 II Prohibited
Articles, explosive, n.o.s. 1.2D UN0467 II Prohibited
Articles, explosive, n.o.s. 1.2E UN0468 II Prohibited
Articles, explosive, n.o.s. 1.2F UN0469 II Prohibited
Articles, explosive, n.o.s. 1.3C UN0470 II Prohibited
Articles, explosive, n.o.s. 1.4E UN0471 II Prohibited
Articles, explosive, n.o.s. 1.4F UN0472 II Prohibited
Articles, pressurized pneumatic or Hydraulic containing non-flammable gas 2.2 UN3164 n/a Only ORM-D 2A 2A
Articles, pyrophoric 1.2L UN0380 II Prohibited
Articles, pyrotechnic for technical purposes 1.1G UN0428 II Prohibited
Articles, pyrotechnic for technical purposes 1.2G UN0429 II Prohibited
Articles, pyrotechnic for technical purposes 1.3G UN0430 II Prohibited
Articles, pyrotechnic for technical purposes 1.4G UN0431 II Prohibited
Articles, pyrotechnic for technical purposes 1.4S UN0432 II Prohibited
Asbestos 9 NA2212 III Only ORM-D 9C 9C
Ascaridole (organic peroxide) Forbidden Prohibited
Asphalt, at or above its flashpoint 3 NA1999 III Only ORM-D Prohibited 3A
Asphalt, cut back, see Tars, liquid, etc.
Automobile, motorcycle, tractor, other self-propelled vehicle, engine, or other mechanical apparatus, see Vehicle or Battery etc.
Aviation regulated liquid, n.o.s. 9 UN3334 n/a 0nly ORM-D 9C 9C
Aviation regulated solid, n.o.s. 9 UN3335 n/a 0nly ORM-D 9C 9C
Azaurolic, acid (salt of), (dry) Forbidden Prohibited
Azido guanidine picrate (dry) Forbidden Prohibited
5-Azido-1-hydroxy tetrazole Forbidden Prohibited
Azido hydroxy tetrazole (mercury and silver salts) Forbidden Prohibited
3-Azido-1,2-Propylene glycol dinitrate Forbidden Prohibited
Azidodithiocarbonic acid Forbidden Prohibited
Azidoethyl nitrate Forbidden Prohibited
1-Aziridinylphosphine oxide-(tris), see Tris-(1-aziridinyl)phosphine oxide, solution
Azodicarbonamide 4.1 UN3242 II Only ORM-D Prohibited 4A
Azotetrazole (dry) Forbidden Prohibited
- B -
Barium 4.3 UN1400 II Only ORM-D Prohibited 4A
Barium alloys, pyrophic 4.2 UN1854 I Prohibited
Barium azide, dry or wetted with less than 50 percent water, by mass 1.1A UN0224 II Prohibited
Barium azide, wetted with not less than 50 percent water, by mass 4.1 UN1571 I Prohibited
Barium bromate 5.1 UN2719 II Prohibited
Barium chlorate 5.1 UN1445 II Prohibited
Barium compounds, n.o.s. 6.1 UN1564 II Prohibited
Barium compounds, n.o.s. 6.1 UN1564 III Only ORM-D 6A 6A
Barium cyanide 6.1 UN1565 I Prohibited
Barium hypochlorite with more than 22 percent available chlorine 5.1 UN2741 II Only ORM-D 5A 5A
Barium nitrate 5.1 UN1446 II Prohibited
Barium oxide 6.1 UN1884 III Only ORM-D 6A 6A
Barium perchlorate 5.1 UN1447 II Prohibited
Barium permanganate 5.1 UN1448 II Prohibited
Barium peroxide 5.1 UN1449 II Prohibited
Barium selenate, see Selenates or Selenites
Barium selenite, see Selenates or Selenites
Barium styphnate 1.1A NA0473 II Prohibited
Batteries, containing sodium 4.3 UN3292 II Prohibited
Batteries, dry, containing potassium hydroxide solid, electric, storage 8 NA3028 III Prohibited
Batteries, wet, filled with acid, electric storage 8 UN2794 III Prohibited
Batteries, wet, filled with acid, electric storage 8 UN2795 III Prohibited
Batteries, wet, non-spillable, electric storage 8 UN2800 III Mailable per 348 and DMM C023.10.4 8B 8B
Batteries, dry, not subject to the requirements of 49 CFR n/a n/a n/a Mailable, not regulated by 49 CFR DMM C010 DMM C010
Battery fluid, acid 8 UN2796 II Only ORM-D 8A 8A
Battery fluid, alkali 8 UN2797 II Only ORM-D 8A 8A
Battery lithium type, see Lithium batteries etc.
Battery-powered vehicle or Battery-powered equipment 9 UN3171 n/a Prohibited
Battery, wet, filled with acid or alkali with automobile (or named self-propelled vehicle or mechanical equipment containing internal combustion engine) see Vehicle or Battery, etc.
Benzaldehyde 9 UN1990 III Only ORM-D 9C 9C
Benzene 3 UN1114 II Only ORM-D Prohibited 3A
Benzene diazonium chloride (dry) Forbidden Prohibited
Benzene diazonium nitrate (dry) Forbidden Prohibited
Benzene phosphorus dichloride, see Phenyl phosphorus dichloride
Benzene phosphorus thiodichloride, see Phenyl phosphorus thiodichloride
Benzene sulfonyl chloride 8 UN2225 III Only ORM-D 8A 8A
Benzene triozonide Forbidden Prohibited
Benzenethiol, see Phenyl mercaptan
Benzidine 6.1 UN1885 II Prohibited
Benzol, see Benzene
Benzonitrile 6.1 UN2224 II Prohibited
Benzoquinone 6.1 UN2587 II Prohibited
Benzotrichloride 8 UN2226 II Only ORM-D 8A 8A
Benzotrifluoride 3 UN2338 II Only ORM-D Prohibited 3A
Benzoxidiazoles (dry) Forbidden Prohibited
Benzoyl azide Forbidden Prohibited
Benzoyl chloride 8 UN1736 II Only ORM-D 8A 8A
Benzyl bromide 6.1 UN1737 II Prohibited
Benzyl chloride 6.1 UN1738 II Prohibited
Benzyl chloride unstabilized 6.1 UN1738 II Prohibited
Benzyl chloroformate 8 UN1739 I Prohibited
Benzyl iodide 6.1 UN2653 II Prohibited
Benzyldimethylamine 8 UN2619 II Only ORM-D 8A 8A
Benzylidene chloride 6.1 UN1886 II Prohibited
Beryllium compounds, n.o.s. 6.1 UN1566 II Prohibited
Beryllium compounds, n.o.s. 6.1 UN1566 III Only ORM-D 6A 6A
Beryllium nitrate 5.1 UN2464 II Prohibited
Beryllium, powder 6.1 UN1567 II Prohibited
Bicyclo [2,2,1] hepta-2, 5-diene, inhibited or 2,5-Norbornadiene, inhibited 3 UN2251 II Only ORM-D Prohibited 3A
Biphenyl triozonide Forbidden Prohibited
Bipyridilium pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C 3 UN2782 I, II Prohibited
Bipyridilium pesticides, liquid, toxic 6.1 UN3016 I, II Prohibited
Bipyridilium pesticides, liquid, toxic 6.1 UN3016 III Only ORM-D 6A 6A
Bipyridilium pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3015 I, II Prohibited
Bipyridilium pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3015 III Only ORM-D 6A 6A
Bipyridilium pesticides, solid, toxic 6.1 UN2781 I, II Prohibited
Bipyridilium pesticides, solid, toxic 6.1 UN2781 III Only ORM-D 6A 6A
Bis (Aminopropyl) piperazine, see Corrosive liquids, n.o.s.
Bisulfate, aqueous solution 8 UN2837 II, III Only ORM-D 8A 8A
Bisulfites, aqueous solutions, n.o.s. 8 UN2693 III Only ORM-D 8A 8A
Black powder, compressed or Gunpowder, compressed or Black powder, in pellets or Gunpowder, in pellets 1.1D UN0028 II Prohibited
Black powder for small arms 4.1 NA0027 I Prohibited
Black powder or Gunpowder, granular or as a meal 1.1D UN0027 II Prohibited
Blasting agent, n.o.s., see Explosives, blasting etc.
Blasting cap assemblies, see Detonator assemblies, non-electric, for blasting
Blasting caps, electric, see Detonators, electric, for blasting
Blasting caps, non-electric, see Detonators, non-electric for blasting
Bleaching powder, see Calcium hypochlorite mixtures, etc.
Blue asbestos (Crocidolite) or Brown asbestos (amosite, mysorite) 9 UN2212 II Only ORM-D 9C 9C
Bombs, photo-flash 1.1F UN0037 II Prohibited
Bombs, photo-flash 1.1D UN0038 II Prohibited
Bombs, photo-flash 1.2G UN0039 II Prohibited
Bombs, photo-flash 1.3G UN0299 II Prohibited
Bombs, smoke, non-explosive, with corrosive liquid, without initiating device 8 UN2028 II Prohibited
Bombs, with bursting charge 1.1F UN0033 II Prohibited
Bombs, with bursting charge 1.1D UN0034 II Prohibited
Bombs, with bursting charge 1.2D UN0035 II Prohibited
Bombs, with bursting charge 1.2F UN0291 II Prohibited
Bombs with flammable liquid, with bursting charge 1.1J UN0399 II Prohibited
Bombs with flammable liquid, with bursting charge 1.2J UN0400 II Prohibited
Boosters with detonator 1.1B UN0225 II Prohibited
Boosters with detonator 1.2B UN0268 II Prohibited
Boosters, without detonator 1.1D UN0042 II Prohibited
Boosters, without detonator 1.2D UN0283 II Prohibited
Borate and chlorate mixtures, see Chlorate and borate mixtures
Borneol 4.1 UN1312 III Prohibited
Boron tribromide 8 UN2692 I Prohibited
Boron trichloride 2.3 UN1741 n/a Prohibited
Boron trifluoride acetic acid complex 8 UN1742 II Only ORM-D 8A 8A
Boron trifluoride, compressed 2.3 UN1008 n/a Prohibited
Boron trifluoride diethyl etherate 8 UN2604 I Prohibited
Boron trifluoride dihydrate 8 UN2851 II Only ORM-D 8A 8A
Boron trifluoride dimethyl etherate 4.3 UN2965 I Prohibited
Boron trifluoride propionic acid complex 8 UN1743 II Only ORM-D 8A 8A
Box toe gum, see Nitrocellulose etc.
Bromates, inorganic, aqueous solution, n.o.s. 5.1 UN3213 II Only ORM-D 5A 5A
Bromates, inorganic, n.o.s. 5.1 UN1450 II Only ORM-D 5A 5A
Bromine or Bromine solutions 8 UN1744 I Prohibited
Bromine azide Forbidden Prohibited
Bromine chloride 2.3 UN2901 Prohibited
Bromine pentafluoride 5.1 UN1745 I Prohibited
Bromine trifluoride 5.1 UN1746 I Prohibited
4-Bromo-1,2-dinitrobenzene Forbidden Prohibited
4-Bromo-1,2-dinitrobenzene (unstable at 59 degrees C) Forbidden Prohibited
1-Bromo-3-methylbutane 3 UN2341 III Only ORM-D Prohibited 3A
1-Bromo-3-nitrobenzene (unstable at 56 degrees C) Forbidden Prohibited
Bromoacetic acid, solid 8 UN1938 II Only ORM-D 8A 8A
Bromoacetic acid, solution 8 UN1938 II Only ORM-D 8A 8A
Bromoacetone 6.1 UN1569 II Prohibited
Bromoacetyl bromide 8 UN2513 II Only ORM-D 8A 8A
Bromobenzene 3 UN2514 III Only ORM-D Prohibited 3A
Bromobenzyl cyanides, liquid 6.1 UN1694 I Prohibited
Bromobenzyl cyanides, solid 6.1 UN1694 I Prohibited
1-Bromobutane 3 UN1126 II Only ORM-D Prohibited 3A
2-Bromobutane 3 UN2339 II Only ORM-D Prohibited 3A
Bromochloromethane 6.1 UN1887 III Only ORM-D 6A 6A
2-Bromoethyl ethyl ether 3 UN2340 II Only ORM-D Prohibited 3A
Bromoform 6.1 UN2515 III Only ORM-D 6A 6A
Bromomethylpropanes 3 UN2342 II Only ORM-D Prohibited 3A
2-Bromo-2-nitropropane-1,3-diol 4.1 UN3241 III Only ORM-D Prohibited 4A
2-Bromopentane 3 UN2343 II Only ORM-D Prohibited 3A
Bromopropanes 3 UN2344 III Only ORM-D Prohibited 3A
2-Bromopropanes 3 UN2344 II Only ORM-D Prohibited 3A
3-Bromopropyne 3 UN2345 II Only ORM-D Prohibited 3A
Bromosilane Forbidden Prohibited
Bromotoluene-alpha, see Benzyl bromide
Bromotrifluoroethylene 2.1 UN2419 n/a Prohibited
Bromotrifluoromethane or Refrigerant gas, R 13B1 2.2 UN1009 n/a Only ORM-D 2B 2B
Brucine 6.1 UN1570 I Prohibited
Bursters, explosive 1.1D UN0043 II Prohibited
Butadienes, inhibited 2.1 UN1010 n/a Only ORM-D Prohibited 2A
Butane see also Petroleum gases, liquefied 2.1 UN1011 n/a Only ORM-D Prohibited 2A
Butane, butane mixtures and mixtures having similar properties in cartridges each not exceeding 500 grams, see Receptacles, etc.
Butanedione 3 UN2346 II Only ORM-D Prohibited 3A
1,2,4-Butanetriol trinitrate Forbidden Prohibited
Butanols 3 UN1120 II, III Only ORM-D Prohibited 3A
tert-Butoxycarbonyl azide Forbidden Prohibited
Butyl acetates 3 UN1123 II, III Only ORM-D Prohibited 3A
Butyl acid phosphate 8 UN1718 III Only ORM-D 8A 8A
Butyl acrylates, inhibited 3 UN2348 III Only ORM-D Prohibited 3A
Butyl alcohols, see Butanols
Butyl benzenes 3 UN2709 III Only ORM-D Prohibited 3A
n-Butyl bromide, see 1-Bromobutane
n-Butyl chloride, see Chlorobutanes
n-Butyl chloroformate 6.1 UN2743 I Prohibited
sec-Butyl chloroformate 6.1 NA2742 I Prohibited
Butyl ethers, see Dibutyl ethers
Butyl ethyl ether, see Ethyl butyl ether
n-Butyl formate 3 UN1128 II Only ORM-D Prohibited 3A
tert-Butyl hydroperoxide, with more than 90 percent with water Forbidden Prohibited
tert-Butyl hypochlorite 4.2 UN3255 I Prohibited
N-n-Butyl imidazole 6.1 UN2690 II Prohibited
tert-Butyl isocyanate 6.1 UN2484 I Prohibited
n-Butyl isocyanate 6.1 UN2485 I Prohibited
Butyl mercaptans 3 UN2347 II Only ORM-D Prohibited 3A
n-Butyl methacrylate, inhibited 3 UN2227 III Only ORM-D Prohibited 3A
Butyl methyl ether 3 UN2350 II Only ORM-D Prohibited 3A
Butyl nitrites 3 UN2351 I, II, III Only ORM-D Prohibited 3A
tert-Butyl peroxyacetate, with more than 76 percent in solution Forbidden Prohibited
n-Butyl peroxydicarbonate, with more than 52 percent in solution Forbidden Prohibited
tert-Butyl peroxyisobutyrate, with more
than 77 percent in solution Forbidden Prohibited
Butyl phosphoric acid, see Butyl acid phosphate
Butyl propionates 3 UN1914 III Only ORM-D Prohibited 3A
5-tert-Butyl-2,4,6-trinitro-m-xylene or Musk xylene 4.1 UN2956 III Prohibited
Butyl vinyl ether, inhibited 3 UN2352 II Only ORM-D Prohibited 3A
n-Butylamine 3 UN1125 II Prohibited
N-Butylaniline 6.1 UN2378 II Prohibited
tert-Butylcyclohexylchloroformate 6.1 UN2747 III Only ORM-D 6A 6A
Butylene see also Petroleum gases, liquefied 2.1 UN1012 n/a Prohibited
1,2-Butylene oxide, stabilized 3 UN3022 II Only ORM-D Prohibited 3A
Butyltoluenes 6.1 UN2667 III Only ORM-D 6A 6A
Butyltrichlorosilane 8 UN1747 II Prohibited
1,4-Butynediol 6.1 UN2716 III Prohibited
Butyraldehyde 3 UN1129 II Only ORM-D Prohibited 3A
Butyraldoxime 3 UN2840 III Only ORM-D Prohibited 3A
Butyric acid 8 UN2820 III Only ORM-D 8A 8A
Butyric anhydride 8 UN2739 III Only ORM-D 8A 8A
Butyronitrile 3 UN2411 II Prohibited
Butyryl chloride 3 UN2353 II Prohibited
- C -
Cacodylic acid 6.1 UN1572 II Prohibited
Cadmium compounds 6.1 UN2570 I, II Prohibited
Cadmium compounds 6.1 UN2570 III Only ORM-D 6A 6A
Caesium hydroxide 8 UN2682 II Only ORM-D 8A 8A
Caesium hydroxide solution 8 UN2681 II, III Only ORM-D 8A 8A
Calcium 4.3 UN1401 II Only ORM-D Prohibited 4A
Calcium arsenate 6.1 UN1573 II Prohibited
Calcium arsenate and calcium arsenite, mixtures, solid 6.1 UN1574 II Prohibited
Calcium arsenite, solid 6.1 NA1574 II Prohibited
Calcium bisulfite solution, see Bisulfites, aqueous solutions, n.o.s.
Calcium carbide 4.3 UN1402 I Prohibited
Calcium carbide 4.3 UN1402 II Only ORM-D Prohibited 4A
Calcium chlorate 5.1 UN1452 II Only ORM-D 5A 5A
Calcium chlorate aqueous solution 5.1 UN2429 II, III Only ORM-D 5A 5A
Calcium chlorite 5.1 UN1453 II Only ORM-D 5A 5A
Calcium cyanamide with more than 0.1 percent of calcium carbide 4.3 UN1403 III Only ORM-D Prohibited 4A
Calcium cyanide 6.1 UN1575 I Prohibited
Calcium dithionite or Calcium hydrosulfite 4.2 UN1923 II Prohibited
Calcium hydride 4.3 UN1404 I Prohibited
Calcium hydrosulfite, see Calcium dithionite
Calcium hypochlorite, dry or Calcium hypochlorite mixtures dry with more than 39 percent available chlorine (8.8 percent available oxygen) 5.1 UN1748 II Only ORM-D 5A 5A
Calcium hypochlorite, hydrated or Calcium hypochlorite, hydrated mixtures, with not less than 5.5 percent but not more than 10 percent water 5.1 UN2880 II Only ORM-D 5A 5A
Calcium hypochlorite mixtures, dry, with more than 10 percent but not more than 39 percent available chlorine 5.1 UN2208 III Only ORM-D 5A 5A
Calcium manganese silicon 4.3 UN2844 III Only ORM-D Prohibited 4A
Calcium nitrate 5.1 UN1454 III Only ORM-D 5A 5A
Calcium oxide 8 UN1910 III Only ORM-D 8A 8A
Calcium perchlorate 5.1 UN1455 II Only ORM-D 5A 5A
Calcium permanganate 5.1 UN1456 II Only ORM-D 5A 5A
Calcium peroxide 5.1 UN1457 II Only ORM-D 5A 5A
Calcium phosphide 4.3 UN1360 I Prohibited
Calcium, pyrophoric or Calcium alloys, pyrophoric 4.2 UN1855 I Prohibited
Calcium resinate 4.1 UN1313 III Prohibited
Calcium resinate, fused 4.1 UN1314 III Prohibited
Calcium selenate, see Selenates or Selenites
Calcium silicide 4.3 UN1405 II, III Only ORM-D Prohibited 4A
Camphor oil 3 UN1130 III Only ORM-D Prohibited 3A
Camphor, synthetic 4.1 UN2717 III Prohibited
Cannon primers, see Primers, tubular
Caproic acid 8 UN2829 III Only ORM-D 8A 8A
Caps, blasting, see Detonators, etc.
Carbamate pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C 3 UN2758 I, II Prohibited
Carbamate pesticides, liquid, toxic 6.1 UN2992 I, II Prohibited
Carbamate pesticides, liquid, toxic 6.1 UN2992 III Only ORM-D 6A 6A
Carbamate pesticide, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN2991 I, II Prohibited
Carbamate pesticide, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN2991 III Only ORM-D 6A 6A
Carbamate pesticides, solid, toxic 6.1 UN2757 I, II Prohibited
Carbamate pesticides, solid, toxic 6.1 UN2757 III Only ORM-D 6A 6A
Carbolic acid, see Phenol, solid or Phenol, molten
Carbolic acid solutions, see Phenol solutions
Carbon, animal or vegetable origin 4.2 UN1361 II, III Prohibited
Carbon, activated 4.2 UN1362 III Prohibited
Carbon bisulfide, see Carbon disulfide
Carbon dioxide 2.2 UN1013 n/a Only ORM-D 2B 2B
Carbon dioxide and nitrous oxide mixtures 2.2 UN1015 n/a Only ORM-D 2B 2B
Carbon dioxide and oxygen mixtures, compressed 2.2 UN1014 n/a Only ORM-D 2B 2B
Carbon dioxide, refrigerated liquid 2.2 UN2187 n/a Only ORM-D 2B 2B
Carbon dioxide, solid, or Dry ice 9 UN1845 III Mailable per 349.23 and DMM C023.11.4 9A 9A
Carbon disulfide 3 UN1131 I Prohibited
Carbon monoxide, compressed 2.3 UN1016 n/a Prohibited
Carbon monoxide and hydrogen mixture, compressed 2.3 UN2600 n/a Prohibited
Carbon monoxide, refrigerated liquid (cryogenic liquid) 2.3 NA9202 n/a Prohibited
Carbon tetrabromide 6.1 UN2516 III Only ORM-D 6A 6A
Carbon tetrachloride 6.1 UN1846 II Prohibited
Carbonyl chloride, see Phosgene
Carbonyl fluoride, compressed 2.3 UN2417 n/a Prohibited
Carbonyl sulfide 2.3 UN2204 n/a Prohibited
Cartridge cases, empty primed, see Cases, cartridge, empty with primer
Cartridges, actuating, for aircraft ejector seat catapult, fire extinguisher, canopy removal or apparatus, see Cartridges, power device
Cartridges, explosive, see Charges, demolition
Cartridges, flash 1.1G UN0049 II Prohibited
Cartridges, flash 1.3G UN0050 II Prohibited
Cartridges for weapons, blank 1.1C UN0326 II Prohibited
Cartridges for weapons, blank 1.2C UN0413 II Prohibited
Cartridges for weapons, blank or Cartridges, small arms, blank 1.3C UN0327 II Prohibited
Cartridges for weapons, blank or Cartridges, small arms, blank 1.4C UN0338 II Prohibited
Cartridges for weapons, blank or Cartridges, small arms, blank 1.4S UN0014 II Prohibited
Cartridges for weapons, inert projectile 1.2C UN0328 II Prohibited
Cartridges for weapons, inert projectile or Cartridges, small arms 1.3C UN0417 II Prohibited
Cartridges for weapons, inert projectile or Cartridges, small arms 1.4C UN0339 II Prohibited
Cartridges for weapons, inert projectile or Cartridges, small arms 1.4S UN0012 II Prohibited
Cartridges for weapons, with bursting charge 1.1E UN0006 II Prohibited
Cartridges for weapons, with bursting charge 1.1F UN0005 II Prohibited
Cartridges for weapons, with bursting charge 1.2E UN0321 II Prohibited
Cartridges for weapons, with bursting charge 1.2F UN0007 II Prohibited
Cartridges for weapons, with bursting charge 1.4E UN0412 II Prohibited
Cartridges for weapons, with bursting charge 1.4F UN0348 II Prohibited
Cartridges, oil well 1.3C UN0277 II Prohibited
Cartridges, oil well 1.4C UN0278 II Prohibited
Cartridges, power device 1.2C UN0381 II Prohibited
Cartridges, power device 1.3C UN0275 II Prohibited
Cartridges, power device 1.4C UN0276 II Prohibited
Cartridges, power device 1.4S UN0323 II Prohibited
Cartridges, safety, blank, see Cartridges for weapons, blank (UN0014)
Cartridges, safety, see Cartridges for weapons, other than blank or Cartridges, power device (UN0323)
Cartridges, signal 1.3G UN0054 II Prohibited
Cartridges, signal 1.4G UN0312 II Prohibited
Cartridges, signal 1.4S UN0405 II Prohibited
Cartridges, small arms ORM-D Prohibited
Cartridges, sporting, see Cartridges for weapons, other than blank
Cartridges, starter, jet engine, see Cartridges, power device
Cases, cartridge, empty with primer 1.4S UN0055 II Prohibited
Cases, cartridges, empty with primer 1.4C UN0379 II Prohibited
Cases, combustible, empty, without primer 1.4C UN0446 II Prohibited
Cases, combustible, empty, without primer 1.3C UN0447 II Prohibited
Casinghead gasoline see Gasoline
Castor beans or Castor meal or Castor pomace or Castor flake 9 UN2969 II Only ORM-D 9C 9C
Caustic alkali liquids, n.o.s. 8 UN1719 II, III Only ORM-D 8A 8A
Caustic potash, see Potassium hydroxide etc.
Caustic soda, etc., see Sodium hydroxide etc.
Cells, containing sodium 4.3 UN3292 II Prohibited
Celluloid, in block, rods, rolls, sheets, tubes, etc., except scrape 4.1 UN2000 III Prohibited
Celluloid, scrape 4.2 UN2002 III Prohibited
Cement, see Adhesives, containing flammable liquid
Cerium, slabs, ingots, or rods 4.1 UN1333 II Prohibited
Cerium, turnings or gritty powder 4.3 UN3078 II Only ORM-D Prohibited 4A
Cesium or Caesium 4.3 UN1407 I Prohibited
Cesium nitrate or Caesium nitrate 5.1 UN1451 III Only ORM-D 5A 5A
Charcoal briquettes, shell, screenings, wood, etc. 4.2 NA1361 III Only ORM-D Prohibited 4A
Charges, bursting, plastics bonded 1.1D UN0457 II Prohibited
Charges, bursting, plastics bonded 1.2D UN0458 II Prohibited
Charges, bursting, plastics bonded 1.4D UN0459 II Prohibited
Charges, bursting, plastics bonded 1.4S UN0460 II Prohibited
Charges, demolition 1.1D UN0048 II Prohibited
Charges, depth 1.1D UN0056 II Prohibited
Charges, expelling, explosive, for fire extinguishers, see Cartridges, power device
Charges, explosive, commercial without detonator 1.1D UN0442 II Prohibited
Charges, explosive, commercial without detonator 1.2D UN0443 II Prohibited
Charges, explosive, commercial without detonator 1.4D UN0444 II Prohibited
Charges, explosive, commercial without detonator 1.4S UN0445 II Prohibited
Charges, propelling 1.1C UN0271 II Prohibited
Charges, propelling 1.2C UN0415 II Prohibited
Charges, propelling 1.3C UN0272 II Prohibited
Charges, propelling 1.4C UN0491 II Prohibited
Charges, propelling, for cannon 1.1C UN0279 II Prohibited
Charges, propelling, for cannon 1.2C UN0414 II Prohibited
Charges, propelling, for cannon 1.3C UN0242 II Prohibited
Charges, shaped, without detonator 1.1D UN0059 II Prohibited
Charges, shaped, without detonator 1.2D UN0439 II Prohibited
Charges, shaped, without detonator 1.4D UN0440 II Prohibited
Charges, shaped, without detonator 1.4S UN0441 II Prohibited
Charges, shaped, flexible, linear 1.1D UN0288 II Prohibited
Charges, shaped, flexible, linear 1.4D UN0237 II Prohibited
Charges, supplementary explosive 1.1D UN0060 II Prohibited
Chemical kit 8 NA1760 II Only ORM-D 8A 8A
Chemical kits or First aid kits (containing hazardous materials) 9 UN3316 n/a Prohibited
Chloral, anhydrous, inhibited 6.1 UN2075 II Prohibited
Chlorate and borate mixtures 5.1 UN1458 II, III Only ORM-D 5A 5A
Chlorate and magnesium chloride mixtures 5.1 UN1459 II, III Only ORM-D 5A 5A
Chlorate of potash, see Potassium chlorate
Chlorate of soda, see Sodium chlorate
Chlorates, inorganic, aqueous solutions, n.o.s. 5.1 UN3210 II Only ORM-D 5A 5A
Chlorates, inorganic, n.o.s. 5.1 UN1461 II Only ORM-D 5A 5A
Chloric acid aqueous solution, with not more than 10 percent chloric acid 5.1 UN2626 II Prohibited
Chloride of phosphorus, see Phosphorus trichloride
Chloride of sulfur, see Sulfur chlorides
Chlorinated lime, see Calcium hypochlorite mixtures, etc.
Chlorine 2.3 UN1017 n/a Prohibited
Chlorine azide Forbidden Prohibited
Chlorine dioxide (not hydrate) Forbidden Prohibited
Chlorine dioxide, hydrate, frozen 5.1 NA9191 II Prohibited
Chlorine pentafluoride 2.3 UN2548 n/a Prohibited
Chlorine trifluoride 2.3 UN1749 n/a Prohibited
Chlorite solution 8 UN1908 II, III Only ORM-D 8A 8A
Chlorites, inorganic, n.o.s. 5.1 UN1462 II Only ORM-D 5A 5A
1-Chloro-3-bromopropane 6.1 UN2688 III Only ORM-D 6A 6A
1-Chloro-1,1-difluoroethane, see Chlorodifluoroethanes
1-Chloro-1,1-difluoroethane or Refrigerant gas R 142b 2.1 UN2517 n/a Only ORM-D Prohibited 2A
3-Chloro-4-methylphenyl isocyanate 6.1 UN2236 II Prohibited
1-Chloro-1,2,2,2-tetrafluoroethane or Refrigerant gas R 124 2.2 UN1021 n/a Only ORM-D 2B 2B
4-Chloro-o-toluidine hydrochloride 6.1 UN1579 III Only ORM-D 6A 6A
1-Chloro-2,2,2-trifluoroethane or Refrigerant gas R 133a 2.2 UN1983 n/a Only ORM-D 2B 2B
Chloroacetic acid, molten 6.1 UN3250 II Prohibited
Chloroacetic acid, solid 6.1 UN1751 II Prohibited
Chloroacetic acid, solution 6.1 UN1750 II Prohibited
Chloroacetone, stabilized 6.1 UN1695 I Prohibited
Chloroacetone (unstabilized) Forbidden Prohibited
Chloroacetonitrile 6.1 UN2668 II Prohibited
Chloroacetophenone (CN), liquid 6.1 UN1697 II Prohibited
Chloroacetophenone (CN), solid 6.1 UN1697 II Prohibited
Chloroacetyl chloride 6.1 UN1752 I Prohibited
Chloroanilines, liquid 6.1 UN2019 II Prohibited
Chloroanilines, solid 6.1 UN2018 II Prohibited
Chloroanisidines 6.1 UN2233 III Only ORM-D 6A 6A
Chlorobenzene 3 UN1134 III Only ORM-D Prohibited 3A
Chlorobenzol, see Chlorobenzene
Chlorobenzotrifluorides 3 UN2234 III Only ORM-D Prohibited 3A
Chlorobenzyl chlorides 6.1 UN2235 III Only ORM-D 6A 6A
Chlorobutanes 3 UN1127 II Only ORM-D Prohibited 3A
Chlorocresols, liquid 6.1 UN2669 II Prohibited
Chlorocresols, solid 6.1 UN2669 II Prohibited
Chlorodifluorobromomethane or Refrigerant gas R 12B1 2.2 UN1974 n/a Only ORM-D 2B 2B
Chlorodifluoromethane or Refrigerant gas R 22 2.2 UN1018 n/a Only ORM-D 2B 2B
Chlorodifluoromethane and chloropentafluoroethane mixture or Refrigerant gas R 502 with fixed boiling point, with approximately 49 percent chlorodifluoromethane 2.2 UN1973 n/a Only ORM-D 2B 2B
Chlorodinitrobenzenes 6.1 UN1577 II Prohibited
2-Chloroethanal 6.1 UN2232 I Prohibited
Chloroform 6.1 UN1888 III Only ORM-D 6A 6A
Chloroformates, toxic, corrosive, flammable, n.o.s. 6.1 UN2742 II Prohibited
Chloroformates, toxic, corrosive, n.o.s. 6.1 UN3277 II Prohibited
Chloromethyl chloroformate 6.1 UN2745 II Prohibited
Chloromethyl ethyl ether 3 UN2354 II Prohibited
Chloronitroanilines 6.1 UN2237 III Only ORM-D 6A 6A
Chloronitrobenzene, ortho, liquid 6.1 UN1578 II Prohibited
Chloronitrobenzenes meta or para, solid 6.1 UN1578 II Prohibited
Chloronitrotoluenes liquid 6.1 UN2433 III Only ORM-D 6A 6A
Chloronitrotoluenes solid 6.1 UN2433 III Only ORM-D 6A 6A
Chloropentafluoroethane or Refrigerant gas R 115 2.2 UN1020 n/a Only ORM-D 2B 2B
Chlorophenolates, liquid or Phenolates, liquid 8 UN2904 III Only ORM-D 8A 8A
Chlorophenolates, solid or Phenolates, solid 8 UN2905 III Only ORM-D 8A 8A
Chlorophenols, liquid 6.1 UN2021 III Only ORM-D 6A 6A
Chlorophenols, solid 6.1 UN2020 III Only ORM-D 6A 6A
Chlorophenyltrichlorosilane 8 UN1753 II Prohibited
Chloropicrin 6.1 UN1580 I Prohibited
Chloropicrin and methyl bromide mixtures 2.3 UN1581 n/a Prohibited
Chloropicrin and methyl chloride mixtures 2.3 UN1582 n/a Prohibited
Chloropicrin mixture, flammable (pressure not exceeding 14.7 psia at 115 degrees F flashpoint below 100 degrees F) see Toxic liquids, flammable, etc.
Chloropicrin mixtures, n.o.s. 6.1 UN1583 I, II Prohibited
Chloropicrin mixtures, n.o.s. 6.1 UN1583 III Only ORM-D 6A 6A
Chloropivaloyl chloride 6.1 NA9263 I Prohibited
Chloroplatinic acid, solid 8 UN2507 III Only ORM-D 8A 8A
Chloroprene, inhibited 3 UN1991 I Prohibited
Chloroprene, uninhibited Forbidden Prohibited
2-Chloropropane 3 UN2356 I Only ORM-D Prohibited 3A
3-Chloropropanol-1 6.1 UN2849 III Only ORM-D 6A 6A
2-Chloropropene 3 UN2456 I Only ORM-D Prohibited 3A
2-Chloropropionic acid 8 UN2511 III Only ORM-D 8A 8A
2-Chloropyridine 6.1 UN2822 II Prohibited
Chlorosilanes, corrosive, flammable, n.o.s. 8 UN2986 II Prohibited
Chlorosilanes, corrosive, n.o.s. 8 UN2987 II Only ORM-D 8A 8A
Chlorosilanes, flammable, corrosive, n.o.s. 3 UN2985 II Prohibited
Chlorosilanes, water-reactive, flammable, corrosive, n.o.s. 4.3 UN2988 I Prohibited
Chlorosulfonic acid (with or without sulfur trioxide) 8 UN1754 I Prohibited
Chlorotoluenes 3 UN2238 III Only ORM-D Prohibited 3A
Chlorotoluidines liquid 6.1 UN2239 III Only ORM-D 6A 6A
Chlorotoluidines solid 6.1 UN2239 III Only ORM-D 6A 6A
Chlorotrifluoromethane or Refrigerant gas R 13 2.2 UN1022 n/a Only ORM-D 2B 2B
Chlorotrifluoromethane and trifluoromethane azeotropic mixture or Refrigerant gas R 503 with approximately 60 percent chlorotrifluoromethane 2.2 UN2599 n/a Only ORM-D 2B 2B
Chromic acid, solid 5.1 NA1463 II Prohibited
Chromic acid solution 8 UN1755 II, III Only ORM-D 8A 8A
Chromic anhydride, see Chromium trioxide, anhydrous
Chromic fluoride, solid 8 UN1756 II Only ORM-D 8A 8A
Chromic fluoride, solution 8 UN1757 II, III Only ORM-D 8A 8A
Chromium nitrate 5.1 UN2720 III Only ORM-D 5A 5A
Chromium oxychloride 8 UN1758 I Prohibited
Chromium trioxide, anhydrous 5.1 UN1463 II Prohibited
Chromosulfuric acid 8 UN2240 I Prohibited
Chromyl chloride, see Chromium oxychloride
Cigar and cigarette lighters, charged with fuel, see Lighters for cigars, cigarettes, etc.
Coal briquettes, hot Forbidden Prohibited
Coal gas, compressed 2.3 UN1023 n/a Prohibited
Coal tar distillates, flammable 3 UN1136 II, III Only ORM-D Prohibited 3A
Coal tar dye, corrosive, liquid, n.o.s., see Dyes, liquid or solid, n.o.s. or Dye intermediates, liquid or solid, n.o.s., corrosive
Coating solution (includes surface treatments or coatings used for industrial or other purposes such as vehicle undercoating, drum or barrel lining) 3 UN1139 I, II, III Only ORM-D Prohibited 3A
Cobalt naphthenates, powder 4.1 UN2001 III Only ORM-D Prohibited 4A
Cobalt resinate, precipitated 4.1 UN1318 III Only ORM-D Prohibited 4A
Coke, hot Forbidden Prohibited
Collodion, see Nitrocellulose etc.
Combustible liquid, n.o.s. 3
(Com-
bustible Liquid) NA1993 III Only ORM-D Mailable only per 343 and DMM C023.4.3 3B
Components, explosive train, n.o.s. 1.1B UN0461 II Prohibited
Components, explosive train, n.o.s. 1.2B UN0382 II Prohibited
Components, explosive train, n.o.s. 1.4B UN0383 II Prohibited
Components, explosive train, n.o.s. 1.4S UN0384 II Prohibited
Composition B, see Hexolite, etc.
Compounds, cleaning liquid 8 NA1760 I Prohibited
Compounds, cleaning liquid 8 NA1760 II, III Only ORM-D 8A 8A
Compounds, cleaning liquid 3 NA1993 I, II, III Only ORM-D 8A 8A
Compounds, tree killing liquid or Compounds, weed killing, liquid 3 NA1993 I, II, III Only ORM-D Prohibited 3A
Compounds, tree killing liquid or Compounds, weed killing, liquid 6.1 NA2810 I, II Prohibited
Compounds, tree killing liquid or Compounds, weed killing, liquid 6.1 NA2810 III Only ORM-D 6A 6A
Compounds, tree killing liquid or Compounds, weed killing, liquid 8 NA1760 I Prohibited
Compounds, tree killing liquid or Compounds, weed killing, liquid 8 NA1760 II, III Only ORM-D 8A 8A
Compressed gas, flammable, n.o.s. 2.1 UN1954 n/a Only ORM-D Prohibited 2A
Compressed gas, n.o.s. 2.2 UN1956 n/a Only ORM-D 2B 2B
Compressed gas, oxidizing, n.o.s. 2.2 UN3156 n/a Only ORM-D 2B 2B
Compressed gas, toxic, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN1955 n/a Prohibited
Compressed gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3304 n/a Prohibited
Compressed gas, toxic, flammable, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN1953 n/a Prohibited
Compressed gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3305 n/a Prohibited
Compressed gas, toxic, oxidizing, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3306 n/a Prohibited
Compressed gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3303 n/a Prohibited
Contrivances, water-activated, with burster, expelling charge, or propelling charge 1.2L UN0248 II Prohibited
Contrivances, water-activated, with burster, expelling charge, or propelling charge 1.3L UN0249 II Prohibited
Copper acetoarsenite 6.1 UN1585 II Prohibited
Copper acetylide Forbidden Prohibited
Copper amine azide Forbidden Prohibited
Copper arsenite 6.1 UN1586 II Prohibited
Copper based pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C 3 UN2776 I, II Prohibited
Copper based pesticides, liquid, toxic 6.1 UN3010 I, II Prohibited
Copper based pesticides, liquid, toxic 6.1 UN3010 III Only ORM-D 6A 6A
Copper based pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3009 I, II Prohibited
Copper based pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3009 III Only ORM-D 6A 6A
Copper based pesticides, solid, toxic 6.1 UN2775 I, II Prohibited
Copper based pesticides, solid, toxic 6.1 UN2775 III Only ORM-D 6A 6A
Copper chlorate 5.1 UN2721 II Only ORM-D 5A 5A
Copper chloride 8 UN2802 III Only ORM-D 8A 8A
Copper cyanide 6.1 UN1587 II Prohibited
Copper selenate, see Selenates or Selenites
Copper selenite, see Selenates or Selenites
Copper tetramine nitrate Forbidden Prohibited
Copra 4.2 UN1363 III Prohibited
Cord, detonating or Fuse, detonating metal clad 1.1D UN0290 II Prohibited
Cord detonating or Fuse detonating metal clad 1.2D UN0102 II Prohibited
Cord, detonating, flexible 1.1D UN0065 II Prohibited
Cord, detonating, flexible 1.4D UN0289 II Prohibited
Cord, detonating, mild effect or Fuse, detonating, mild effect metal clad 1.4D UN0104 II Prohibited
Cord, igniter 1.4G UN0066 II Prohibited
Cordeau detonat fuse, see Cord, detonating, etc.; Cord, detonating, flexible
Cordite, see Powder, smokeless
Corrosive liquid, acidic, inorganic, n.o.s. 8 UN3264 I Prohibited
Corrosive liquid, acidic, inorganic, n.o.s. 8 UN3264 II, III Only ORM-D 8A 8A
Corrosive liquid, acidic, organic, n.o.s. 8 UN3265 I Prohibited
Corrosive liquid, acidic, organic, n.o.s. 8 UN3265 II, III Only ORM-D 8A 8A
Corrosive liquid, basic, inorganic, n.o.s. 8 UN3266 I Prohibited
Corrosive liquid, basic, inorganic, n.o.s 8 UN3266 II, III Only ORM-D 8A 8A
Corrosive liquid, basic, organic, n.o.s. 8 UN3267 I Prohibited
Corrosive liquid, basic, organic, n.o.s. 8 UN3267 II, III Only ORM-D 8A 8A
Corrosive liquids, self-heating, n.o.s. 8 UN3301 I Prohibited
Corrosive liquids, self-heating, n.o.s. 8 UN3301 II Only ORM-D 8A 8A
Corrosive liquids, flammable, n.o.s. 8 UN2920 I, II Prohibited
Corrosive liquids, n.o.s. 8 UN1760 I Prohibited
Corrosive liquids, n.o.s. 8 UN1760 II, III Only ORM-D 8A 8A
Corrosive liquids, oxidizing, n.o.s. 8 UN3093 I, II Prohibited
Corrosive liquids, toxic, n.o.s. 8 UN2922 I, II Prohibited
Corrosive liquids, toxic, n.o.s. 8 UN2922 III Only ORM-D 8A 8A
Corrosive liquids, water-reactive, n.o.s. 8 UN3094 I, II Prohibited
Corrosive solid, acidic, inorganic, n.o.s. 8 UN3260 I Prohibited
Corrosive solid, acidic, inorganic, n.o.s. 8 UN3260 II, III Only ORM-D 8A 8A
Corrosive solid, acidic, organic, n.o.s. 8 UN3261 I Prohibited
Corrosive solid, acidic, organic, n.o.s. 8 UN3261 II, III Only ORM-D 8A 8A
Corrosive solid, basic, inorganic, n.o.s. 8 UN3262 I Prohibited
Corrosive solid, basic, inorganic, n.o.s. 8 UN3262 II, III Only ORM-D 8A 8A
Corrosive solid, basic, organic, n.o.s. 8 UN3263 I Prohibited
Corrosive solid, basic, organic, n.o.s. 8 UN3263 II, III Only ORM-D 8A 8A
Corrosive solids, flammable, n.o.s. 8 UN2921 I, II Prohibited
Corrosive solids, n.o.s. 8 UN1759 I Prohibited
Corrosive solids, n.o.s. 8 UN1759 II, III Only ORM-D 8A 8A
Corrosive solids, oxidizing, n.o.s. 8 UN3084 I, II Prohibited
Corrosive solids, self-heating, n.o.s. 8 UN3095 I, II Prohibited
Corrosive solids, toxic, n.o.s. 8 UN2923 I, II Prohibited
Corrosive solids, toxic, n.o.s. 8 UN2923 III Only ORM-D 8A 8A
Corrosive solids, water-reactive, n.o.s. 8 UN3096 I, II Prohibited
Cotton 9 NA1365 n/a Prohibited
Cotton waste, oily 4.2 UN1364 III Prohibited
Cotton, wet 4.2 UN1365 III Prohibited
Coumarin derivative pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees-C 3 UN3024 I, II Prohibited
Coumarin derivative pesticides, liquid, toxic 6.1 UN3026 I, II Prohibited
Coumarin derivative pesticides, liquid, toxic 6.1 UN3026 III Only ORM-D 6A 6A
Coumarin derivative pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3025 I, II Prohibited
Coumarin derivative pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3025 III Only ORM-D 6A 6A
Coumarin derivative pesticides, solid, toxic 6.1 UN3027 I, II Prohibited
Coumarin derivative pesticides, solid, toxic 6.1 UN3027 III Only ORM-D 6A 6A
Cresols 6.1 UN2076 II Prohibited
Cresylic acid 6.1 UN2022 II Prohibited
Crotonaldehyde, stabilized 6.1 UN1143 I Prohibited
Crotonic acid liquid 8 UN2823 III Only ORM-D 8A 8A
Crotonic acid solid 8 UN2823 III Only ORM-D 8A 8A
Crotonylene 3 UN1144 I Only ORM-D Prohibited 3A
Cupriethylenediamine solution 8 UN1761 II Prohibited
Cupriethylenediamine solution 8 UN1761 III Only ORM-D 8A 8A
Cutters, cable, explosive 1.4S UN0070 II Prohibited
Cyanide, or cyanide mixtures, dry, see Cyanides, inorganic, solid, n.o.s.
Cyanide solutions, n.o.s. 6.1 UN1935 I, II Prohibited
Cyanide solutions, n.o.s. 6.1 UN1935 III Only ORM-D 6A 6A
Cyanides, inorganic, solid, n.o.s. 6.1 UN1588 I, II Prohibited
Cyanides, inorganic, solid, n.o.s. 6.1 UN1588 III Only ORM-D 6A 6A
Cyanogen 2.3 UN1026 n/a Prohibited
Cyanogen bromide 6.1 UN1889 I Prohibited
Cyanogen chloride, inhibited 2.3 UN1589 n/a Prohibited
Cyanuric chloride 8 UN2670 II Prohibited
Cyanuric triazide Forbidden Prohibited
Cyclobutane 2.1 UN2601 n/a Only ORM-D Prohibited 2A
Cyclobutyl chloroformate 6.1 UN2744 II Prohibited
1,5,9-Cyclododecatriene 6.1 UN2518 III Only ORM-D 6A 6A
Cycloheptane 3 UN2241 II Only ORM-D Prohibited 3A
Cycloheptatriene 3 UN2603 II Prohibited
Cycloheptene 3 UN2242 II Only ORM-D Prohibited 3A
Cyclohexane 3 UN1145 II Only ORM-D Prohibited 3A
Cyclohexanone 3 UN1915 III Only ORM-D Prohibited 3A
Cyclohexene 3 UN2256 II Only ORM-D Prohibited 3A
Cyclohexenyltrichlorosilane 8 UN1762 II Prohibited
Cyclohexyl acetate 3 UN2243 III Only ORM-D Prohibited 3A
Cyclohexyl isocyanate 6.1 UN2488 I Prohibited
Cyclohexyl mercaptan 3 UN3054 III Only ORM-D Prohibited 3A
Cyclohexylamine 8 UN2357 II Prohibited
Cyclohexyltrichlorosilane 8 UN1763 II Prohibited
Cyclonite and cyclotetramethylenetetranitramine mixtures, wetted or desensitized see RDX and HMX mixtures, wetted or desensitized, etc.
Cyclonite and HMX mixtures, wetted or desensitized see RDX and HMX mixtures, wetted or desensitized etc.
Cyclonite and octogen mixtures, wetted or desensitized see RDX and HMX mixtures, wetted or desensitized etc.
Cyclonite, see cyclotrimethylenetrinitramine, etc.
Cyclooctadiene phosphines, see 9-Phosphabicyclononanes
Cyclooctadienes 3 UN2520 III Only ORM-D Prohibited 3A
Cyclooctatetraene 3 UN2358 II Only ORM-D Prohibited 3A
Cyclopentane 3 UN1146 II Only ORM-D Prohibited 3A
Cyclopentane, methyl, see Methylcyclopentane
Cyclopentanol 3 UN2244 III Only ORM-D Prohibited 3A
Cyclopentanone 3 UN2245 III Only ORM-D Prohibited 3A
Cyclopentene 3 UN2246 II Only ORM-D Prohibited 3A
Cyclopropane 2.1 UN1027 n/a Only ORM-D Prohibited 2A
Cyclotetramethylene tetranitramine (dry or unphlegmatized) (HMX) Forbidden Prohibited
Cyclotetramethylenetetranitramine, desensitized or Octogen, desensitized or HMX, desensitized 1.1D UN0484 II Prohibited
Cyclotetramethylenetetranitramine, wetted or HMX, wetted or Octogen, wetted with not less than 15 percent water, by mass 1.1D UN0226 II Prohibited
Cyclotrimethylenenitramine and octogen, mixtures, wetted or desensitized see RDX and HMX mixtures, wetted or desensitized etc.
Cyclotrimethylenetrinitramine and cyclotetramethylenetetranitramine mixtures, wetted or desensitized see RDX and HMX mixtures, wetted or desensitized etc.
Cyclotrimethylenetrinitramine and HMX mixtures, wetted or desensitized see RDX and HMX mixtures, wetted or desensitized etc.
Cyclotrimethylenetrinitramine, desensitized or Cyclonite, desensitized or Hexogen, desensitized or RDX, desensitized 1.1D UN0483 II Prohibited
Cyclotrimethylenetrinitramine, wetted or Cyclonite, wetted or Hexogen, wetted or RDX, wetted with not less than 15 percent water by mass 1.1D UN0072 II Prohibited
Cymenes 3 UN2046 III Only ORM-D Prohibited 3A
- D -
Dangerous Goods in Machinery or Dangerous Goods in Apparatus n/a NA8001 n/a Prohibited
Decaborane 4.1 UN1868 II Prohibited
Decahydronaphthalene 3 UN1147 III Only ORM-D Prohibited 3A
n-Decane 3 UN2247 III Only ORM-D Prohibited 3A
Decaborane 4.1 UN1868 II Prohibited
Decahydronaphthalene 3 UN1147 III Only ORM-D Prohibited 3A
n-Decane 3 UN2247 III Only ORM-D Prohibited 3A
Deflagrating metal salts of aromatic nitroderivatives, n.o.s. 1.3C UN0132 II Prohibited
Delay electric igniter, see Igniters
Denatured alcohol 3 NA1986 I, II Prohibited
Denatured alcohol 3 NA1986 III Only ORM-D Prohibited 3A
Denatured alcohol 3 NA1987 II, III Only ORM-D Prohibited 3A
Depth charges, see Charges, depth
Detonating relays, see Detonators, etc.
Detonator assemblies, non-electric for blasting 1.1B UN0360 II Prohibited
Detonator assemblies, non-electric for blasting 1.4B UN0361 II Prohibited
Detonator assemblies, non-electric for blasting 1.4S UN0500 II Prohibited
Detonators, electric, for blasting 1.1B UN0030 II Prohibited
Detonators, electric, for blasting 1.4B UN0255 II Prohibited
Detonators, electric, for blasting 1.4S UN0456 II Prohibited
Detonators for ammunition 1.1B UN0073 II Prohibited
Detonators for ammunition 1.2B UN0364 II Prohibited
Detonators for ammunition 1.4B UN0365 II Prohibited
Detonators for ammunition 1.4S UN0366 II Prohibited
Detonators, non-electric, for blasting 1.1B UN0029 II Prohibited
Detonators, non-electric, for blasting 1.4B UN0267 II Prohibited
Detonators, non-electric, for blasting 1.4S UN0455 II Prohibited
Deuterium, compressed 2.1 UN1957 n/a Only ORM-D Prohibited 2A
Devices, small, hydrocarbon gas powered or Hydrocarbon gas refills for small devices with release device 2.1 UN3150 n/a Only ORM-D Prohibited 2A
Di-n-amylamine 3 UN2841 III Only ORM-D Prohibited 3A
Di-n-butyl peroxydicarbonate, with more than 52 percent in solution Forbidden Prohibited
Di-n-butylamine 8 UN2248 II Prohibited
2,2-Di-(tert-butylperoxy) butane, with more than 55 percent in solution Forbidden Prohibited
Di-(tert-butylperoxy) phthalate, with more than 55 percent in solution Forbidden Prohibited
2,2-Di-(4,4-di-tert-butylperoxycyclohexyl) propane, with more than 42 percent with inert solid Forbidden Prohibited
Di-2,4-dichlorobenzoyl peroxide, with more than 75 percent with water Forbidden Prohibited
1,2-Di-(dimethylamino)ethane 3 UN2372 II Only ORM-D Prohibited 3A
Di-2-ethylhexyl phosphoric acid, see Diisooctyl acid phosphate
Di-(1-hydroxytetrazole) (dry) Forbidden Prohibited
Di-(1-naphthoyl) peroxide Forbidden Prohibited
Di-(beta-nitroxyethyl) ammonium nitrate Forbidden Prohibited
a,a'-Di-(nitroxy) methylether Forbidden Prohibited
Diacetone alcohol 3 UN1148 II, III Only ORM-D Prohibited 3A
Diacetone alcohol peroxides, with more than 57 percent in solution with more than 9 percent hydrogen peroxide, less than 26 percent diacetone alcohol and less than 9 percent water; total active oxygen content more than 9 percent by mass Forbidden Prohibited
Diacetyl, see Butanedione
Diacetyl peroxide, solid, or with more than 25 percent in solution Forbidden Prohibited
Diallylamine 3 UN2359 II Prohibited
Diallylether 3 UN2360 II Prohibited
4,4'-Diaminodiphenyl methane 6.1 UN2651 III Only ORM-D 6A 6A
p-Diazidobenzene Forbidden Prohibited
1,2-Diazidoethane Forbidden Prohibited
1,1'-Diazoaminonaphthalene Forbidden Prohibited
Diazoaminotetrazole (dry) Forbidden Prohibited
Diazodinitrophenol (dry) Forbidden Prohibited
Diazodinitrophenol, wetted with not less than 40 percent water or mixture of alcohol and water, by mass 1.1A UN0074 II Prohibited
Diazodiphenylmethane Forbidden Prohibited
Diazonium nitrates (dry) Forbidden Prohibited
Diazonium perchlorates (dry) Forbidden Prohibited
1,3-Diazopropane Forbidden Prohibited
Dibenzyl peroxydicarbonate, with more than 87 percent with water Forbidden Prohibited
Dibenzyldichlorosilane 8 UN2434 II Only ORM-D 8A 8A
Diborane, compressed 2.3 UN1911 n/a Prohibited
Diborane mixtures 2.1 NA1911 n/a Prohibited Prohibited 2A
Dibromoacetylene Forbidden Prohibited
1,2-Dibromobutan-3-one 6.1 UN2648 II Prohibited
Dibromochloropropane 6.1 UN2872 III Only ORM-D 6A 6A
Dibromodifluoromethane, R12B2 9 UN1941 III Only ORM-D 9C 9C
1,2-Dibromoethane, see Ethylene dibromide
Dibromomethane 6.1 UN2664 III Only ORM-D 6A 6A
Dibutyl ethers 3 UN1149 III Only ORM-D Prohibited 3A
Dibutylaminoethanol 6.1 UN2873 III Only ORM-D 6A 6A
N,N'-Dichlorazodicarbonamidine (salts of) (dry) Forbidden Prohibited
1,1-Dichloro-1-nitroethane 6.1 UN2650 II Prohibited
3,5-Dichloro-2,4,6-trifluoropyridine 6.1 NA9264 I Prohibited
Dichloroacetic acid 8 UN1764 II Only ORM-D 8A 8A
1,3-Dichloroacetone 6.1 UN2649 II Prohibited
Dichloroacetyl chloride 8 UN1765 II Only ORM-D 8A 8A
Dichloroacetylene Forbidden Prohibited
Dichloroanilines, liquid 6.1 UN1590 II Prohibited
Dichloroanilines, solid 6.1 UN1590 II Prohibited
o-Dichlorobenzene 6.1 UN1591 III Only ORM-D 6A 6A
Dichlorobutene 8 NA2920 I Prohibited
2,2'-Dichlorodiethyl ether 6.1 UN1916 II Prohibited
Dichlorodifluoromethane or Refrigerant gas R 12 2.2 UN1028 n/a Only ORM-D 2B 2B
Dichlorodifluoromethane and difluoroethane azeotropic mixture or Refrigerant gas R 500 with approximately 74 percent dichlorodifluoromethane 2.2 UN2602 n/a Only ORM-D 2B 2B
Dichlorodimethyl ether, symmetrical 6.1 UN2249 I Prohibited
1,1-Dichloroethane 3 UN2362 II Only ORM-D Prohibited 3A
1,2-Dichloroethane, see Ethylene dichloride
Dichloroethyl sulfide Forbidden Prohibited
1,2-Dichloroethylene 3 UN1150 II Only ORM-D Prohibited 3A
Dichlorofluoromethane or Refrigerant gas R 21 2.2 UN1029 n/a Only ORM-D 2B 2B
Dichloroisocyanuric acid, dry or Dichloroisocyanuric acid salts 5.1 UN2465 II Only ORM-D 5A 5A
Dichlorodisopropyl ether 6.1 UN2490 II Prohibited
Dichloromethane 6.1 UN1593 III Only ORM-D 6A 6A
Dichloropentanes 3 UN1152 III Only ORM-D Prohibited 3A
Dichlorophenyl isocyanates 6.1 UN2250 II Prohibited
Dichlorophenyltrichlorosilane 8 UN1766 II Prohibited
1,2-Dichloropropane 3 UN1279 II Only ORM-D Prohibited 3A
1,3-Dichloropropanol-2 6.1 UN2750 II Prohibited
Dichloropropene and propylene dichloride mixture, see Propylene dichloride
Dichloropropenes 3 UN2047 II, III Only ORM-D Prohibited 3A
Dichlorosilane 2.3 UN2189 n/a Prohibited
1,2-Dichloro-1,1,2,2-Tetrafluoroethane or Refrigerant gas R 114 2.2 UN1958 n/a Only ORM-D 2B 2B
Dichlorovinylchloroarsine Forbidden Prohibited
Dicycloheptadiene, see 2,5-Norbornadiene
Dicyclohexylamine 8 UN2565 III Only ORM-D 8A 8A
Dicyclohexylammonium nitrate 4.1 UN2687 III Only ORM-D Prohibited 4A
Dicyclopentadiene 3 UN2048 III Only ORM-D Prohibited 3A
Didymium nitrate 5.1 UN1465 III Only ORM-D 5A 5A
Dieldrin 6.1 NA2761 II Prohibited
Diesel fuel 3 NA1993 III Only ORM-D Prohibited 3A
Diethanol nitrosamine dinitrate (dry) Forbidden Prohibited
Diethoxymethane 3 UN2373 II Only ORM-D Prohibited 3A
3,3-Diethoxypropene 3 UN2374 II Only ORM-D Prohibited 3A
Diethyl carbonate 3 UN2366 III Only ORM-D Prohibited 3A
Diethyl cellosolve, see Ethylene glycol diethyl ether
Diethyl ether or Ethyl ether 3 UN1155 I Only ORM-D Prohibited 3A
Diethyl ketone 3 UN1156 II Only ORM-D Prohibited 3A
Diethyl peroxydicarbonate, with more than 27 percent in solution Forbidden Prohibited
Diethyl sulfate 6.1 UN1594 II Prohibited
Diethyl sulfide 3 UN2375 II Prohibited
Diethylamine 3 UN1154 II Prohibited
2-Diethylaminoethanol 8 UN2686 II Prohibited
Diethylaminopropylamine 3 UN2684 III Only ORM-D Prohibited 3A
N,N-Diethylaniline 6.1 UN2432 III Only ORM-D 6A 6A
Diethylbenzene 3 UN2049 III Only ORM-D Prohibited 3A
Diethyldichlorosilane 8 UN1767 II Prohibited 8A 8A
Diethylene glycol dinitrate Forbidden Prohibited
Diethyleneglycol dinitrate, desensitized with not less than 25 percent non-volatile water-insoluble phlegmatizer, by mass 1.1D UN0075 II Prohibited
Diethylenetriamine 8 UN2079 II Only ORM-D 8A 8A
N,N-Diethylethylenediamine 8 UN2685 II Prohibited
Diethylgold bromide Forbidden Prohibited
Diethylthiophosphoryl chloride 8 UN2751 II Prohibited
Diethylzinc 4.2 UN1366 I Prohibited
Difluorochloroethanes, see 1-Chloro-1,1-difluoroethanes
1,1-Difluoroethane or Refrigerant gas R 152a 2.1 UN1030 n/a Only ORM-D Prohibited 2A
1,1-Difluoroethylene or Refrigerant gas R 1132a 2.1 UN1959 n/a Only ORM-D Prohibited 2A
Difluoromethane or Refrigerant gas R 32 2.1 UN3252 n/a Only ORM-D Prohibited 2A
Difluorophosphoric acid, anhydrous 8 UN1768 II Prohibited
2,3-Dihydropyran 3 UN2376 II Only ORM-D Prohibited 3A
1,8-Dihydroxy-2,4,5,7-tetranitroanthraquinone (chrysamminic acid) Forbidden Prohibited
Diiodoacetylene Forbidden Prohibited
Diisobutyl ketone 3 UN1157 III Only ORM-D Prohibited 3A
Diisobutylamine 3 UN2361 III Only ORM-D Prohibited 3A
Diisobutylene, isomeric compounds 3 UN2050 II Only ORM-D Prohibited 3A
Diisooctyl acid phosphate 8 UN1902 III Only ORM-D 8A 8A
Diisopropyl ether 3 UN1159 II Only ORM-D Prohibited 3A
Diisopropylamine 3 UN1158 II Prohibited
Diisopropylbenzene hydroperoxide, with more than 72 percent in solution Forbidden Prohibited
Diketene, inhibited 6.1 UN2521 I Prohibited
1,2-Dimethoxyethane 3 UN2252 II Only ORM-D Prohibited 3A
1,1-Dimethoxyethane 3 UN2377 II Only ORM-D Prohibited 3A
Dimethyl carbonate 3 UN1161 II Only ORM-D Prohibited 3A
Dimethyl chlorothiophosphate, see Dimethyl thiophosphoryl chloride
2,5-Dimethyl-2,5-dihydroperoxy hexane, with more than 82 percent with water Forbidden Prohibited
Dimethyl disulfide 3 UN2381 II Only ORM-D Prohibited 3A
Dimethyl ether 2.1 UN1033 n/a Only ORM-D Prohibited 2A
Dimethyl sulfate 6.1 UN1595 I Prohibited
Dimethyl sulfide 3 UN1164 II Prohibited
Dimethyl thiophosphoryl chloride 6.1 UN2267 II Prohibited
Dimethyl-N-propylamine 3 UN2266 II Prohibited
Dimethylamine, anhydrous 2.1 UN1032 n/a Prohibited
Dimethylamine solution 3 UN1160 II Prohibited
2-Dimethylaminoacetonitrile 3 UN2378 II Prohibited
2-Dimethylaminoethanol 8 UN2051 II Only ORM-D 8A 8A
2-Dimethylaminoethyl acrylate 6.1 UN3302 II Prohibited
2-Dimethylaminoethyl methacrylate 6.1 UN2522 II Prohibited
N,N-Dimethylaniline 6.1 UN2253 II Prohibited
2,3-Dimethylbutane 3 UN2457 II Only ORM-D Prohibited 3A
1,3-Dimethylbutylamine 3 UN2379 II Prohibited
Dimethylcardamoyl chloride 8 UN2262 II Only ORM-D 8A 8A
Dimethylcyclohexanes 3 UN2263 II Only ORM-D Prohibited 3A
Dimethylcyclohexlamine 8 UN2264 II Only ORM-D 8A 8A
Dimethyldichlorosilane 3 UN1162 II Prohibited
Dimethyldiethoxysilane 3 UN2380 II Only ORM-D Prohibited 3A
Dimethyldioxanes 3 UN2707 II, III Only ORM-D Prohibited 3A
N,N-Dimethylformamide 3 UN2265 III Only ORM-D Prohibited 3A
Dimethylhexane dihydroperoxide (dry) Forbidden Prohibited
Dimethylhydrazine, symmetrical 6.1 UN2382 I Prohibited
Dimethylhydrazine, unsymmetrical 6.1 UN1163 I Prohibited
2,2-Dimethylpropane 2.1 UN2044 n/a Only ORM-D Prohibited 2A
Dimethylzinc 4.2 UN1370 I Prohibited
Dintro-o-cresol, solid 6.1 UN1598 II Prohibited
Dintro-o-cresol, solution 6.1 UN1598 II Prohibited
1,4-Dinitro-1,1,4,4-
tetramethylolbutanetetranitrate (dry) Forbidden Prohibited
2,4-Dinitro-1,3,5-trimethylbenzene Forbidden Prohibited
1,3-Dinitro-4,5-dinitrosobenzene Forbidden Prohibited
1,3-Dinitro-5,5-dimethyl hydantoin Forbidden Prohibited
Dinitro-7,8-dimethylglycoluril (dry) Forbidden Prohibited
Dinitroanilines 6.1 UN1596 II Prohibited
Dinitrobenzenes, liquid 6.1 UN1597 II Prohibited
Dinitrobenzenes, solid 6.1 UN1597 II Prohibited
Dinitrochlorobenzene, see Chlorodinitrobenzenes
1,2-Dinitroethane Forbidden Prohibited
1,1-Dinitroethane (dry) Forbidden Prohibited
Dinitrogen tetroxide 2.3 UN1067 n/a Prohibited
Dinitroglycoluril or Dingu 1.1D UN0489 II Prohibited
Dinitromethane Forbidden Prohibited
Dinitrophenol, dry or wetted with less than 15 percent water, by mass 1.1D UN0076 II Prohibited
Dinitrophenel solutions 6.1 UN1599 II Prohibited
Dinitrophenol, wetted with not less than 15 percent water, by mass 4.1 UN1320 I Prohibited
Dinitrophenolates alkali metals, dry or wetted with less than 15 percent water, by mass 1.3C UN0077 II Prohibited
Dinitrophenolates, wetted with not less than 15 percent water, by mass 4.1 UN1321 I Prohibited
Dinitropropylene glycol Forbidden Prohibited
2,4-Dinitroresorcinol (heavy metal salts of) (dry) Forbidden Prohibited
4,6-Dinitroresorcinol (heavy metal salts of) (dry) Forbidden Prohibited
Dinitroresorcinol, dry or wetted with less than 15 percent water, by mass 1.1D UN0078 II Prohibited
Dinitroresorcinol, wetted with not less than 15 percent water, by mass 4.1 UN1322 I Prohibited
3,5-Dinitrosalicylic acid (lead salt) (dry) Forbidden Prohibited
Dinitrosobenzene 1.3C UN0406 II Prohibited
Dinitrosobenzylamidine and salts of (dry) Forbidden Prohibited
2,2-Dinitrostilbene Forbidden Prohibited
Dinitrotoluenes, liquid 6.1 UN2038 II Prohibited
Dinitrotoluenes, molten 6.1 UN1600 II Prohibited
Dinitrotoluenes, solid 6.1 UN2038 II Prohibited
1,9-Dinitroxy pentamethylene-2,4,6,8-tetramine (dry) Forbidden Prohibited
Dioxane 3 UN1165 II Only ORM-D Prohibited 3A
Dioxolane 3 UN1166 II Only ORM-D Prohibited 3A
Dipentene 3 UN2052 III Only ORM-D Prohibited 3A
Diphenylamine chloroarsine 6.1 UN1698 I Prohibited
Diphenylchloroarsine, liquid 6.1 UN1699 I Prohibited
Diphenylchloroarsine, solid 6.1 UN1699 I Prohibited
Diphenyldichlorosilane 8 UN1769 II Prohibited
Diphenylmethyl bromide 8 UN1770 II Only ORM-D 8A 8A
Dipicryl sulfide, dry or wetted with less than 10 percent water, by mass 1.1D UN0401 II Prohibited
Dipicryl sulfide, wetted with not less than 10 percent water, by mass 4.1 UN2852 I Prohibited
Dipicrylamine, see Hexanitrodiphenylamine
Dipropionyl peroxide, with more than 28 percent in solution Forbidden Prohibited
Di-n-propyl ether 3 UN2384 II Only ORM-D Prohibited 3A
Dipropyl ketone 3 UN2710 III Only ORM-D Prohibited 3A
Dipropylamine 3 UN2383 II Prohibited
Disinfectants, liquid, corrosive, n.o.s. 8 UN1903 I Prohibited
Disinfectants, liquid, corrosive, n.o.s. 8 UN1903 II, III Only ORM-D 8A 8A
Disinfectants, liquid, toxic, n.o.s. 6.1 UN3142 I, II Prohibited
Disinfectants, liquid, toxic, n.o.s. 6.1 UN3142 III Only ORM-D 6A 6A
Disinfectants, solid, toxic, n.o.s. 6.1 UN1601 II Prohibited
Disinfectants, solid, toxic, n.o.s. 6.1 UN1601 III Only ORM-D 6A 6A
Disodium trioxosilicate 8 UN3253 III Only ORM-D 8A 8A
Dispersant gases, n.o.s. see Refrigerant gases, n.o.s.
Divinyl ether, inhibited 3 UN1167 I Prohibited
Dodecylbenzenesulfonic acid 8 NA2584 II Only ORM-D 8A 8A
Dodecyltrichlorosilane 8 UN1771 II Prohibited
Dry ice, see Carbon dioxide, solid
Dyes, liquid, corrosive, n.o.s. or Dye intermediates, liquid, corrosive, n.o.s. 8 UN2801 I Prohibited
Dyes, liquid, corrosive, n.o.s. or Dye intermediates, liquid, corrosive, n.o.s. 8 UN2801 II, III Only ORM-D 8A 8A
Dyes, liquid, toxic, n.o.s. or Dye intermediates, liquid, toxic, n.o.s. 6.1 UN1602 II Prohibited
Dyes, liquid, toxic, n.o.s. or Dye intermediates, liquid, toxic, n.o.s. 6.1 UN1602 III Only ORM-D 6A 6A
Dyes, solid, corrosive, n.o.s. or Dye intermediates, solid, corrosive, n.o.s. 8 UN3147 I Prohibited
Dyes, solid, corrosive, n.o.s. or Dye intermediates, solid, corrosive, n.o.s. 8 UN3147 II, III Only ORM-D 8A 8A
Dyes, solid, toxic, n.o.s. or Dye intermediates, solid, toxic, n.o.s. 6.1 UN3143 I, II Prohibited
Dyes, solid, toxic, n.o.s. or Dye intermediates, solid, toxic, n.o.s. 6.1 UN3143 III Only ORM-D 6A 6A
Dynamite, see Explosive, blasting, type A
- E -
Electrolyte (acid or alkali) for batteries, see Battery fluid, acid or Battery fluid, alkali
Elevated temperature liquid, flammable, n.o.s., with flashpoint above 37.8 degrees C, at or above its flashpoint 3 UN3256 III Prohibited
Elevated temperature liquid, n.o.s., at or above 100 degrees C and below its flashpoint (including molten metals, molten salts, etc.) 9 UN3257 III Prohibited
Elevated temperature solid, n.o.s., at or above 240 degrees C, see 49 CFR 173.247(h)(4) 9 UN3258 III Prohibited
Engines, internal combustion, flammable gas powered 9 UN3166 n/a Prohibited
Engines, internal combustion, flammable liquid powered 9 UN3166 n/a Prohibited
Environmentally hazardous substances, liquid, n.o.s. 9 UN3082 III Prohibited
Environmentally hazardous substances, solid, n.o.s. 9 UN3077 III Prohibited
Epibromohydrin 6.1 UN2558 I Prohibited
Epichlorohydrin 6.1 UN2023 II Prohibited
1,2-Epoxy-3-ethoxypropane 3 UN2752 III Only ORM-D Prohibited 3A
Esters, n.o.s. 3 UN3272 II, III Only ORM-D Prohibited 3A
Etching acid, liquid, n.o.s., see Hydrofluoric acid, solution etc.
Ethane 2.1 UN1035 n/a Only ORM-D Prohibited 2A
Ethane-Propane mixture, refrigerated liquid 2.1 NA1961 n/a Prohibited
Ethane, refrigerated liquid 2.1 UN1961 n/a Prohibited
Ethanol or Ethyl alcohol or Ethanol solutions or Ethyl alcohol solutions 3 UN1170 II, III Only ORM-D Prohibited 3A
Ethanol amine dinitrate Forbidden Prohibited
Ethanolamine or Ethanolamine solutions 8 UN2491 III Only ORM-D 8A 8A
Ether, see Diethyl ether
Ethers, n.o.s. 3 UN3271 II, III Only ORM-D Prohibited 3A
Ethyl acetate 3 UN1173 II Only ORM-D Prohibited 3A
Ethyl acrylate, inhibited 3 UN1917 II Only ORM-D Prohibited 3A
Ethyl alcohol, see Ethanol
Ethyl aldehyde, see Acetaldehyde
Ethyl amyl ketone 3 UN2271 III Only ORM-D Prohibited 3A
N-Ethyl-N-benzylaniline 6.1 UN2274 III Only ORM-D 6A 6A
Ethyl borate 3 UN1176 II Only ORM-D Prohibited 3A
Ethyl bromide 6.1 UN1891 II Prohibited
Ethyl bromoacetate 6.1 UN1603 II Prohibited
Ethyl butyl ether 3 UN1179 II Only ORM-D Prohibited 3A
Ethyl butyrate 3 UN1180 III Only ORM-D Prohibited 3A
Ethyl chloride 2.1 UN1037 n/a Prohibited
Ethyl chloroacetate 6.1 UN1181 II Prohibited
Ethyl chloroformate 6.1 UN1182 I Prohibited
Ethyl 2-chloropropionate 3 UN2935 III Only ORM-D Prohibited 3A
Ethyl chlorothioformate 8 UN2826 II Prohibited
Ethyl crotonate 3 UN1862 II Only ORM-D Prohibited 3A
Ethyl ether, see Diethyl ether
Ethyl fluoride or Refrigerant gas R 161 2.1 UN2453 n/a Only ORM-D Prohibited 2A
Ethyl formate 3 UN1190 II Only ORM-D Prohibited 3A
Ethyl hydroperoxide Forbidden Prohibited
Ethyl isobutyrate 3 UN2385 II Only ORM-D Prohibited 3A
Ethyl isocyanate 3 UN2481 I Prohibited
Ethyl lactate 3 UN1192 III Only ORM-D Prohibited 3A
Ethyl mercaptan 3 UN2363 I Prohibited
Ethyl methacrylate 3 UN2277 II Only ORM-D Prohibited 3A
Ethyl methyl ether 2.1 UN1039 n/a Prohibited
Ethyl methyl ketone or Methyl ethyl ketone 3 UN1193 II Only ORM-D Prohibited 3A
Ethyl nitrate solutions 3 UN1194 I Prohibited
Ethyl orthoformate 3 UN2524 III Only ORM-D Prohibited 3A
Ethyl oxalate 6.1 UN2525 III Only ORM-D 6A 6A
Ethyl perchlorate Forbidden Prohibited
Ethyl phosphonothioic dichloride, anhydrous 6.1 NA2927 I Prohibited
Ethyl phosphonous dichloride, anhydrous pyrophoric liquid 6.1 NA2845 I Prohibited
Ethyl phosphorodichloridate 6.1 NA2927 I Prohibited
Ethyl propionate 3 UN1195 II Only ORM-D Prohibited 3A
Ethyl propyl ether 3 UN2615 II Only ORM-D Prohibited 3A
Ethyl silicate, see Tetraethyl silicate
Ethylacetylene, inhibited 2.1 UN2452 n/a Prohibited
Ethylamine 2.1 UN1036 n/a Prohibited
Ethylamine, aqueous solution with not less than 50 percent but not more than 70 percent ethylamine 3 UN2270 II Prohibited
N-Ethylaniline 6.1 UN2272 III Only ORM-D 6A 6A
2-Ethylaniline 6.1 UN2273 III Only ORM-D 6A 6A
Ethylbenzene 3 UN1175 II Only ORM-D Prohibited 3A
N-Ethylbenzyltoluidines liquid 6.1 UN2753 III Only ORM-D 6A 6A
N-Ethylbenzyltoluidines solid 6.1 UN2753 III Only ORM-D 6A 6A
2-Ethylbutanol 3 UN2275 III Only ORM-D Prohibited 3A
2-Ethylbutyl acetate 3 UN1177 III Only ORM-D Prohibited 3A
2-Ethylbutyraldehyde 3 UN1178 II Only ORM-D Prohibited 3A
Ethyldichloroarsine 6.1 UN1892 I Prohibited
Ethyldichlorosilane 4.3 UN1183 I Prohibited
Ethylene, acetylene and propylene in mixture, refrigerated liquid with at least 71.5 percent ethylene with not more than 22.5 percent acetylene and not more than 6 percent propylene 2.1 UN3138 n/a Prohibited
Ethylene chlorohydrin 6.1 UN1135 I Prohibited
Ethylene, compressed 2.1 UN1962 n/a Only ORM-D Prohibited 2A
Ethylene diamine diperchlorate Forbidden Prohibited
Ethylene dibromide 6.1 UN1605 I Prohibited
Ethylene dibromide and methyl bromide liquid mixtures, see Methyl bromide and ethylene dibromide mixtures, liquid
Ethylene dichloride 3 UN1184 II Prohibited
Ethylene glycol diethyl ether 3 UN1153 III Only ORM-D Prohibited 3A
Ethylene glycol dinitrate Forbidden Prohibited
Ethylene glycol monoethyl ether 3 UN1171 III Only ORM-D Prohibited 3A
Ethylene glycol monoethyl ether acetate 3 UN1172 III Only ORM-D Prohibited 3A
Ethylene glycol monomethyl ether 3 UN1188 III Only ORM-D Prohibited 3A
Ethylene glycol monomethyl ether acetate 3 UN1189 III Only ORM-D Prohibited 3A
Ethylene oxide or Ethylene oxide with nitrogen up to a total pressure of 1MPa (10 bar) at 50 degrees C 2.3 UN1040 n/a Prohibited
Ethylene oxide and carbon dioxide mixtures with more than 87 percent ethylene oxide 2.3 UN3300 n/a Prohibited
Ethylene oxide and carbon dioxide mixtures with more than 9 percent but not more than 87 percent ethylene oxide 2.1 UN1041 n/a Only ORM-D Prohibited 2A
Ethylene oxide and carbon dioxide mixtures with not more than 9 percent ethylene oxide 2.2 UN1952 n/a Only ORM-D 2B 2B
Ethylene oxide and chlorotetrafluoroethane mixture with not more than 8.8 percent ethylene oxide 2.2 UN3297 n/a Only ORM-D 2B 2B
Ethylene oxide and dichlorodifluoromethane mixture with not more than 12.5 percent ethylene oxide 2.2 UN3070 n/a Only ORM-D 2B 2B
Ethylene oxide and pentafluoroethane mixture with not more than 7.9 percent ethylene oxide 2.2 UN3298 n/a Only ORM-D 2B 2B
Ethylene oxide and propylene oxide mixtures with not more than 30 percent ethylene oxide 3 UN2983 I Prohibited
Ethylene oxide and tetrafluoroethane mixture with not more than 5.6 percent ethylene oxide 2.2 UN3299 n/a Only ORM-D 2B 2B
Ethylene, refrigerated liquid (cryogenic liquid) 2.1 UN1038 n/a Prohibited
Ethylenediamine 8 UN1604 II Only ORM-D 8A 8A
Ethyleneimine, inhibited 6.1 UN1185 I Prohibited
Ethylhexaldehyde, see Octyl aldehydes etc.
2-Ethylhexyl chloroformate 6.1 UN2748 II Prohibited
2-Ethylhexylamine 3 UN2276 III Only ORM-D Prohibited 3A
Ethylphenyldichlorosilane 8 UN2435 II Prohibited
1-Ethylpiperidine 3 UN2386 II Prohibited
N-Ethyltoluidines 6.1 UN2754 II Prohibited
Ethyltrichlorosilane 3 UN1196 II Prohibited
Etiologic agent, see Infectious substances, etc.
Explosive articles, see Articles, explosive, n.o.s. etc.
Explosive, blasting, type A 1.1D UN0081 II Prohibited
Explosive, blasting, type B 1.1D UN0082 II Prohibited
Explosive, blasting, type B or Agent blasting, Type B 1.5D UN0331 II Prohibited
Explosive, blasting, type C 1.1D UN0083 II Prohibited
Explosive, blasting, type D 1.1D UN0084 II Prohibited
Explosive, blasting, type E 1.1D UN0241 II Prohibited
Explosive, blasting, type E or Agent blasting, Type E 1.5D UN0332 II Prohibited
Explosive, forbidden. See 49 CFR 173.54 Forbidden Prohibited
Explosive substances, see Substances, explosive, n.o.s. etc.
Explosives, slurry, see Explosive, blasting, type E
Explosives, water gels, see Explosive, blasting, type E
Extracts, aromatic, liquid 3 UN1169 II, III Only ORM-D Prohibited 3A
Extracts, flavoring, liquid 3 UN1197 II, III Only ORM-D Prohibited 3A
- F -
Fabric with animal or vegetable oil, see Fibers or Fabrics, etc.
Ferric arsenate 6.1 UN1606 II Prohibited
Ferric arsenite 6.1 UN1607 II Prohibited
Ferric chloride, anhydrous 8 UN1773 III Only ORM-D 8A 8A
Ferric chloride, solution 8 UN2582 III Only ORM-D 8A 8A
Ferric nitrate 5.1 UN1466 III Only ORM-D 5A 5A
Ferrocerium 4.1 UN1323 II Only ORM-D Prohibited 4A
Ferrosilicon, with 30 percent or more but less than 90 percent silicon 4.3 UN1408 III Only ORM-D Prohibited 4A
Ferrous arsenate 6.1 UN1608 II Prohibited
Ferrous chloride, solid 8 NA1759 II Only ORM-D 8A 8A
Ferrous chloride, solution 8 NA1760 II Only ORM-D 8A 8A
Ferrous metal borings or Ferrous metal shavings or Ferrous metal turnings or Ferrous metal cuttings in a form liable to self-heating 4.2 UN2793 III Prohibited
Fertilizer ammoniating solution with free ammonia 2.2 UN1043 n/a Only ORM-D 2B 2B
Fibers or Fabrics impregnated with weakly nitrated nitrocellulose, n.o.s. 4.1 UN1353 III Prohibited
Fibers or Fabrics, animal or vegetable or Synthetic, n.o.s. with animal or vegetable oil 4.2 UN1373 III Prohibited
Films, nitrocellulose base, gelatine coated (except scrap) 4.1 UN1324 III Prohibited
Films, nitrocellulose base, from which gelatine has been removed; film scrap, see Celluloid scrap
Fire extinguisher charges, corrosive liquid 8 UN1774 II Only ORM-D 8A 8A
Fire extinguisher charges, expelling, explosive, see Cartridges, power device
Fire extinguishers containing compressed or liquefied gas 2.2 UN1044 n/a Mailable only per 342.22d 2C 2C
Firelighters, solid with flammable liquid 4.1 UN2623 III Prohibited
Fireworks 1.1G UN0333 II Prohibited
Fireworks 1.2G UN0334 II Prohibited
Fireworks 1.3G UN0335 II Prohibited
Fireworks 1.4G UN0336 II Prohibited
Fireworks 1.4S UN0337 II Prohibited
Fish meal, stabilized or Fish scrap, stabilized 9 UN2216 III Only ORM-D 9C 9C
Fish meal, unstabilized or Fish scrap, unstabilized 4.2 UN1374 II Prohibited
Fissile radioactive materials, see Radioactive material, fissile, n.o.s.
Flammable compressed gas (small receptacles not fitted with a dispersion device, not refillable), see Receptacles, etc.
Flammable compressed gas, see Compressed or Liquefied gas, flammable, etc.
Flammable gas in lighters, see Lighters or lighter refills, cigarettes, containing flammable gas
Flammable liquid, toxic, corrosive, n.o.s. 3 UN3286 I, II Prohibited
Flammable liquids, corrosive, n.o.s. 3 UN2924 I, II Prohibited
Flammable liquids, corrosive, n.o.s. 3 UN2924 III Only ORM-D Prohibited 3A
Flammable liquids, n.o.s. 3 UN1993 I, II, III Only ORM-D Prohibited 3A
Flammable liquids, toxic, n.o.s. 3 UN1992 I, II Prohibited
Flammable liquids, toxic, n.o.s. 3 UN1992 III Only ORM-D Prohibited 3A
Flammable solid, corrosive, inorganic, n.o.s. 4.1 UN3180 II, III Only ORM-D Prohibited 4A
Flammable solid, inorganic, n.o.s. 4.1 UN3178 II, III Only ORM-D Prohibited 4A
Flammable solid, organic, molten, n.o.s. 4.1 UN3176 II, III Only ORM-D Prohibited 4A
Flammable solid, oxidizing, n.o.s. 4.1 UN3097 II, III Prohibited
Flammable solid, toxic, inorganic, n.o.s. 4.1 UN3179 II, III Only ORM-D Prohibited 4A
Flammable solids, corrosive, organic, n.o.s. 4.1 UN2925 II Prohibited
Flammable solids, corrosive, organic, n.o.s. 4.1 UN2925 III Only ORM-D Prohibited 4A
Flammable solids, organic, n.o.s. 4.1 UN1325 II, III Only ORM-D Prohibited 4A
Flammable solids, toxic, organic, n.o.s. 4.1 UN2926 II Prohibited
Flammable solids, toxic, organic, n.o.s. 4.1 UN2926 III Only ORM-D Prohibited 4A
Flares, aerial 1.1G UN0420 II Prohibited
Flares, aerial 1.2G UN0421 II Prohibited
Flares, aerial 1.3G UN0093 II Prohibited
Flares, aerial 1.4G UN0403 II Prohibited
Flares, aerial 1.4S UN0404 II Prohibited
Flares, airplane, see Flares, aerial
Flares, signal, see Cartridges, signal
Flares, surface 1.1G UN0418 II Prohibited
Flares, surface 1.2G UN0419 II Prohibited
Flares, surface 1.3G UN0092 II Prohibited
Flares, water-activated, see Contrivances, water-activated, etc.
Flash powder 1.1G UN0094 II Prohibited
Flash powder 1.3G UN0305 II Prohibited
Flue dusts, poisonous, see Arsenical dust
Fluoric acid, see Hydrofluoric acid, solution, etc.
Fluorine, compressed 2.3 UN1045 n/a Prohibited
Fluoroacetic acid 6.1 UN2642 I Prohibited
Fluoroanilines 6.1 UN2941 III Only ORM-D 6A 6A
Fluorobenzene 3 UN2387 II Only ORM-D Prohibited 3A
Fluoroboric acid 8 UN1775 II Only ORM-D 8A 8A
Fluorophosphoric acid anhydrous 8 UN1776 II Prohibited
Fluorosilicates, n.o.s. 6.1 UN2856 III Only ORM-D 6A 6A
Fluorosilicic acid 8 UN1778 II Prohibited
Fluorosulfonic acid 8 UN1777 I Prohibited
Fluorotoluenes 3 UN2388 II Only ORM-D Prohibited 3A
Forbidden materials, see 49 CFR 173.21 Forbidden Prohibited
Formaldehyde, solutions, with not less than 25 percent formaldehyde 8 UN2209 III Only ORM-D 8A 8A
Formaldehyde, solutions, flammable 3 UN1198 III Only ORM-D Prohibited 3A
Formalin, see Formaldehyde, solutions, etc.
Formic acid 8 UN1779 II Only ORM-D 8A 8A
Fracturing devices, explosives, without detonators for oil wells 1.1D UN0099 II Prohibited
Fuel, aviation, turbine engine 3 UN1863 I, II, III Only ORM-D Prohibited 3A
Fuel oil (No. 1, 2, 4, 5, or 6) 3 NA1993 III Only ORM-D Prohibited 3A
Fulminate of mercury (dry) Forbidden Prohibited
Fulminate of mercury, wet, see Mercury fulminate, etc.
Fulminating gold Forbidden Prohibited
Fulminating mercury Forbidden Prohibited
Fulminating platinum Forbidden Prohibited
Fulminating silver Forbidden Prohibited
Fulminic acid Forbidden Prohibited
Fumaryl chloride 8 UN1780 II Only ORM-D 8A 8A
Fumigated lading, see 49 CFR 172.302(g), 173.9, and 176.76(h) Prohibited
Furaldehydes 6.1 UN1199 II Prohibited
Furan 3 UN2389 I Prohibited
Furfuryl alcohol 6.1 UN2874 III Only ORM-D 6A 6A
Furfurylamine 3 UN2526 III Only ORM-D Prohibited 3A
Fuse, detonating, metal clad, see Cord, detonating, metal clad
Fuse, detonating, mild effect, metal clad, see Cord, detonating, mild effect, metal clad
Fuse, igniter tubular metal clad 1.4G UN0103 II Prohibited
Fuse, non-detonating (instantaneous or quickmatch) 1.3G UN0101 II Prohibited
Fuse, safety 1.4S UN0105 II Mailable only with approval per 341.22b Prohibited 1B
Fusee (railway or highway) 4.1 NA1325 II Prohibited
Fusel oil 3 UN1201 II, III Only ORM-D Prohibited 3A
Fuses, tracer, see Tracers for ammunition
Fuzes, combination, percussion and time, see Fuzes, detonating (UN0257, UN0367); Fuzes, igniting (UN0317, UN0368)
Fuzes, detonating 1.1B UN0106 II Prohibited
Fuzes, detonating 1.2B UN0107 II Prohibited
Fuzes, detonating 1.4B UN0257 II Prohibited
Fuzes, detonating 1.4S UN0367 II Prohibited
Fuzes, detonating, with protective features 1.1D UN0408 II Prohibited
Fuzes, detonating, with protective features 1.2D UN0409 II Prohibited
Fuzes, detonating, with protective features 1.4D UN0410 II Prohibited
Fuzes, igniting 1.3G UN0316 II Prohibited
Fuzes, igniting 1.4G UN0317 II Prohibited
Fuzes, igniting 1.4S UN0368 II Prohibited
- G -
Galactsan trinitrate Forbidden Prohibited
Gallium 8 UN2803 III Prohibited
Gas cartridges (flammable) without a release device, non-refillable 2.1 UN2037 n/a Only ORM-D Prohibited 2A
Gas generator assemblies (aircraft), containing a nonflammable nontoxic gas and a propellant cartridge 2.2 None n/a Prohibited 2B 2B
Gas identification set 2.3 NA9035 n/a Prohibited
Gas oil or Diesel fuel or Heating oil, light 3 UN1202 III Only ORM-D Prohibited 3A
Gas, refrigerated liquid, flammable, n.o.s. (cryogenic liquid) 2.1 UN3312 n/a Prohibited
Gas, refrigerated liquid, n.o.s. (cryogenic liquid) 2.2 UN3158 n/a Prohibited
Gas, refrigerated liquid, oxidizing, n.o.s. (cryogenic liquid) 2.2 UN3311 n/a Prohibited
Gas sample, non-pressurized, flammable, n.o.s., not refrigerated liquid 2.1 UN3167 n/a Only ORM-D Prohibited 2A
Gas sample, non-pressurized, toxic, flammable, n.o.s., not refrigerated liquid 2.3 UN3168 n/a Prohibited
Gas sample, non-pressurized, toxic, n.o.s., not refrigerated liquid 2.3 UN3169 n/a Prohibited
Gasohol gasoline mixed with ethyl alcohol, with not more than 20 percent alcohol 3 NA1203 II Only ORM-D Prohibited 3A
Gasoline 3 UN1203 II Prohibited per 343.23
Gasoline, casinghead, see Gasoline
Gelatine, blasting, see Explosive, blasting, type A
Gelatine dynamites, see Explosive, blasting, type A
Germane 2.3 UN2192 n/a Prohibited
Glycerol-1,3-dinitrate Forbidden Prohibited
Glycerol gluconate trinitrate Forbidden Prohibited
Glycerol lactate trinitrate Forbidden Prohibited
Glycerol alpha-monochlorohydrin 6.1 UN2689 III Only ORM-D 6A 6A
Glyceryl trinitrate, see Nitroglycerin, etc.
Glycidaldehyde 3 UN2622 II Only ORM-D Prohibited 3A
Grenades, empty primed 1.4S NA0349 II Prohibited
Grenades, hand or rifle, with bursting charge 1.1D UN0284 II Prohibited
Grenades, hand or rifle, with bursting charge 1.1F UN0292 II Prohibited
Grenades, hand or rifle, with bursting charge 1.2D UN0285 II Prohibited
Grenades, hand or rifle, with bursting charge 1.2F UN0293 II Prohibited
Grenades, illuminating, see Ammunition, illuminating, etc.
Grenades, practice, hand or rifle 1.2G UN0372 II Prohibited
Grenades, practice, hand or rifle 1.3G UN0318 II Prohibited
Grenades, practice, hand or rifle 1.4G UN0452 II Prohibited
Grenades, practice, hand or rifle 1.4S UN0110 II Prohibited
Grenades, smoke, see Ammunition, smoke, etc.
Guanidine nitrate 5.1 UN1467 III Only ORM-D 5A 5A
Guanyl nitrosaminoguanylidene hydrazine (dry) Forbidden Prohibited
Guanyl nitrosaminoguanylidene hydrazine, wetted with not less than 30 percent water, by mass 1.1A UN0113 II Prohibited
Guanyl nitrosaminoguanyltetrazene (dry) Forbidden Prohibited
Guanyl nitrosaminoguanyltetrazene, wetted or Tetrazene, wetted with not less than 30 percent water or mixture of alcohol and water, by mass 1.1A UN0114 II Prohibited
Gunpowder, granular or as a meal, see Black powder, etc. (UN0027)
Gunpowder, compressed or Gunpowder in pellets, see Black powder, etc. (UN0028)
- H -
Hafnium powder, dry 4.2 UN2545 I, II, III Prohibited
Hafnium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanically produced, particle size less than 53 microns; (b) chemically produced, particle size less than 840 microns 4.1 UN1326 II Prohibited
Hand signal device, see Signal devices, hand
Hazardous substances, liquid or solid, n.o.s., see Environmentally hazardous substances, etc.
Hazardous waste, liquid, n.o.s. 9 NA3082 III Prohibited
Hazardous waste, solid, n.o.s. 9 NA3077 III Prohibited
Helium, compressed 2.2 UN1046 n/a Only ORM-D 2B 2B
Helium-oxygen mixture, see Rare gases and oxygen mixtures etc.
Helium, refrigerated liquid (cyrogenic liquid) 2.2 UN1963 n/a Prohibited
Heptafluoropropane or Refrigerant gas R 227 2.2 UN3296 n/a Only ORM-D 2B 2B
n-Heptaldehyde 3 UN3056 III Only ORM-D Prohibited 3A
Heptanes 3 UN1206 II Only ORM-D Prohibited 3A
n-Heptane 3 UN2278 II Only ORM-D Prohibited 3A
Hexachloroacetone 6.1 UN2661 III Only ORM-D 6A 6A
Hexachlorobenzene 6.1 UN2729 III Only ORM-D 6A 6A
Hexachlorobutadiene 6.1 UN2279 III Only ORM-D 6A 6A
Hexachlorocyclopentadiene 6.1 UN2646 I Prohibited
Hexachlorophene 6.1 UN2875 III Only ORM-D 6A 6A
Hexadecyltrichlorosilane 8 UN1781 II Prohibited
Hexadienes 3 UN2458 II Prohibited
Hexaethyl tetraphosphate and compressed gas mixtures 2.3 UN1612 n/a Prohibited
Hexaethyl tetraphosphate, liquid 6.1 UN1611 II Prohibited
Hexaethyl tetraphosphate, solid 6.1 UN1611 II Prohibited
Hexafluoroacetone 2.3 UN2420 n/a Prohibited
Hexafluoroacetone hydrate 6.1 UN2552 II Prohibited
Hexafluoroethane, compressed or Refrigerant gas R 116 2.2 UN2193 n/a Only ORM-D 2B 2B
Hexafluorophosphoric acid 8 UN1782 II Prohibited
Hexafluoropropylene, compressed or Refrigerant gas R 1216 2.2 UN1858 n/a Only ORM-D 2B 2B
Hexaldehyde 3 UN1207 III Only ORM-D Prohibited 3A
Hexamethylene diisocyanate 6.1 UN2281 II Prohibited
Hexamethylene triperoxide diamine (dry) Forbidden Prohibited
Hexamethylenediamine solution 8 UN1783 II Prohibited
Hexamethylenediamine solution 8 UN1783 III Only ORM-D 8A 8A
Hexamethylenediamine, solid 8 UN2280 III Only ORM-D 8A 8A
Hexamethyleneimine 3 UN2493 II Prohibited
Hexamethylenetetramine 4.1 UN1328 III Only ORM-D Prohibited 4A
Hexamethylol benzene hexanitrate Forbidden Prohibited
Hexanes 3 UN1208 II Only ORM-D Prohibited 3A
2,2',4,4',6,6'-Hexanitro-3,3'-dihydroxyazobenzene (dry) Forbidden Prohibited
Hexanitroazoxy benzene Forbidden Prohibited
Hexanitrodiphenyl urea Forbidden Prohibited
N,N'-(hexanitrodiphenyl) ethylene dinitramine (dry) Forbidden Prohibited
Hexanitrodiphenylamine or Dipicrylamine or Hexyl 1.1D UN0079 II Prohibited
2,2',3',4,4',6-Hexanitrodiphenylamine Forbidden Prohibited
2,3',4,4',6,6'-Hexanitrodiphenylether Forbidden Prohibited
Hexanitroethane Forbidden Prohibited
Hexanitrooxanilide Forbidden Prohibited
Hexanitrostilbene 1.1D UN0392 II Prohibited
Hexanoic acid, see Corrosive liquids, n.o.s.
Hexanols 3 UN2282 III Only ORM-D Prohibited 3A
1-Hexene 3 UN2370 II Only ORM-D Prohibited 3A
Hexogen and cyclotetramethylenetetranitramine mixtures, wetted or desensitized see RDX and HMX mixtures, wetted or desensitized etc.
Hexogen and HMX mixtures, wetted or desensitized see RDX and HMX mixtures, wetted or desensitized etc.
Hexogen and octogen mixtures, wetted or desensitized see RDX and HMX mixtures, wetted or desensitized etc.
Hexogen, see Cyclotrimethylenetrinitramine, etc.
Hexolite, or Hexotol dry or wetted with less than 15 percent water, by mass 1.1D UN0118 II Prohibited
Hexotonal 1.1D UN0393 II Prohibited
Hexyl, see Hexanitrodiphenylamine
Hexyltrichlorosilane 8 UN1784 II Prohibited
High explosives, see individual explosives' entries
HMX, see Cyclotetramethylenetetranitramine, etc.
Hydrazine, anhydrous or Hydrazine aqueous solutions with more than 64 percent hydrazine, by mass 8 UN2029 I Prohibited
Hydrazine, aqueous solution with not more than 37 percent hydrazine, by mass 6.1 UN3293 III Only ORM-D 6A 6A
Hydrazine azide Forbidden Prohibited
Hydrazine chlorate Forbidden Prohibited
Hydrazine decarbonic acid diazide Forbidden Prohibited
Hydrazine hydrate or Hydrazine aqueous solutions, with not less than 37 percent but not more than 64 percent hydrazine, by mass 8 UN2030 II Prohibited
Hydrazine perchlorate Forbidden Prohibited
Hydrazine selenate Forbidden Prohibited
Hydriodic acid 8 UN1787 II, III Only ORM-D 8A 8A
Hydriodic acid, anhydrous, see Hydrogen iodide, anhydrous
Hydrobromic acid, with more than 49 percent hydrobromic acid 8 UN1788 II, III Prohibited
Hydrobromic acid, with not more than 49 percent hydrobromic acid 8 UN1788 II, III Only ORM-D and per 348.2 8A 8A
Hydrobromic acid, anhydrous, see Hydrogen bromide, anhydrous
Hydrocarbon gas mixture, compressed, n.o.s. 2.1 UN1964 n/a Only ORM-D Prohibited 2A
Hydrocarbon gas mixtures, liquefied, n.o.s. 2.1 UN1965 n/a Only ORM-D Prohibited 2A
Hydrocarbons, liquid, n.o.s. 3 UN3295 I, II, III Only ORM-D Prohibited 3A
Hydrochloric acid 8 UN1789 II, III Only ORM-D and per 348.22 8A 8A
Hydrochloric acid, anhydrous, see Hydrogen chloride, anhydrous
Hydrocyanic acid, anhydrous, see Hydrogen cyanide, etc.
Hydrocyanic acid, aqueous solutions or Hydrogen cyanide, aqueous solutions with not more than 20 percent hydrogen cyanide 6.1 UN1613 I Prohibited
Hydrocyanic acid, aqueous solutions with less than 5 percent hydrogen cyanide 6.1 UN1613 II Prohibited
Hydrocyanic acid, liquefied, see Hydrogen cyanide, etc.
Hydrocyanic acid (prussic) unstabilized Forbidden Prohibited
Hydrofluoric acid and Sulfuric acid mixtures 8 UN1786 I Prohibited
Hydrofluoric acid, anhydrous, see Hydrogen fluoride, anhydrous
Hydrofluoric acid, with more than 60 percent strength 8 UN1790 I Prohibited
Hydrofluoric acid, with not more than 60 percent strength 8 UN1790 II Prohibited
Hydrofluoroboric acid, see Fluoroboric acid
Hydorfluorosilicic acid, see Fluorosilicic acid
Hydrogen and Methane mixtures, compressed 2.1 UN2034 n/a Only ORM-D Prohibited 2A
Hydrogen bromide, anhydrous 2.3 UN1048 n/a Prohibited
Hydrogen chloride, anhydrous 2.3 UN1050 n/a Prohibited
Hydrogen chloride, refrigerated liquid 2.3 UN2186 n/a Prohibited
Hydrogen, compressed 2.1 UN1049 n/a Only ORM-D Prohibited 2A
Hydrogen, cyanide, solution in alcohol with not more than 45 percent hydrogen cyanide 6.1 UN3294 I Prohibited
Hydrogen cyanide, stabilized with less than 3 percent water 6.1 UN1051 I Prohibited
Hydrogen cyanide, stabilized with less than 3 percent water and absorbed in a porous inert material 6.1 UN1614 I Prohibited
Hydrogen fluoride, anhydrous 8 UN1052 I Prohibited
Hydrogen iodide, anhydrous 2.3 UN2197 n/a Prohibited
Hydrogen iodide solution, see Hydriodic acid, solution
Hydrogen peroxide and peroxyacetic acid mixtures, stabilized with acids, water, and not more than 5 percent peroxyacetic acid 5.1 UN3149 II Prohibited
Hydrogen peroxide, aqueous solutions with more than 40 percent but not more than 60 percent hydrogen peroxide (stabilized as necessary) 5.1 UN2014 II Prohibited
Hydrogen peroxide, aqueous solutions with not less than 20 percent but not more than 40 percent hydrogen peroxide (stabilized as necessary) 5.1 UN2014 II Prohibited
Hydrogen peroxide, aqueous solutions with not less than 8 percent but less than 20 percent hydrogen peroxide (stabilized as necessary) 5.1 UN2984 III Only ORM-D 5A 5A
Hydrogen peroxide, stabilized or Hydrogen peroxide aqueous solutions, stabilized with more than 60 percent hydrogen peroxide 5.1 UN2015 I Prohibited
Hydrogen, refrigerated liquid (cryogenic liquid) 2.1 UN1966 n/a Prohibited
Hydrogen selenide, anhydrous 2.3 UN2202 n/a Prohibited
Hydrogen sulfate, see Sulfuric acid, etc.
Hydrogen sulfide 2.3 UN1053 n/a Prohibited
Hydrogendifluorides, n.o.s. solid 8 UN1740 II Prohibited
Hydrogendifluorides, n.o.s. solid 8 UN1740 III Only ORM-D 8A 8A
Hydrogendifluorides, n.o.s. solutions 8 UN1740 II Prohibited
Hydrogendifluorides, n.o.s. solutions 8 UN1740 III Only ORM-D
Hydroquinone 6.1 UN2662 III Only ORM-D 6A 6A
Hydrosilicofluoric acid, see Fluorosilicic acid
Hydroxyl amine iodide Forbidden Prohibited
Hydroxylamine sulfate 8 UN2865 III Only ORM-D 8A 8A
Hypochlorite solutions 8 UN1791 II, III Only ORM-D 8A 8A
Hypochlorites, inorganic, n.o.s. 5.1 UN3212 II Only ORM-D 5A 5A
Hyponitrous acid Forbidden Prohibited
- I -
Igniter fuse, metal clad, see Fuse, igniter tubular metal clad
Igniters 1.1G UN0121 II Prohibited
Igniters 1.2G UN0314 II Prohibited
Igniters 1.3G UN0315 II Prohibited
Igniters 1.4G UN0325 II Prohibited
Igniters 1.4S UN0454 II Prohibited
3,3'-Iminodipropylamine 8 UN2269 III Only ORM-D 8A 8A
Infectious substances, affecting animals only 6.2 UN2900 n/a Mailable only per 346 and DMM C023.8.3 6B Prohibited
Infectious substances, affecting humans only 6.2 UN2814 n/a Mailable only per 346 and DMM C023.8.3 6B Prohibited
Inflammable, see Flammable
Initiating explosives (dry) Forbidden Prohibited
Inosital hexanitrate (dry) Forbidden Prohibited
Insecticide gases, n.o.s. 2.2 UN1968 n/a Only ORM-D 2B 2B
Insecticide gases flammable n.o.s. 2.1 NA1954 n/a Only ORM-D Prohibited 2A
Insecticide gases, flammable, n.o.s 2.1 UN3354 n/a Only ORM-D Prohibited 2A
Insecticide gases, toxic, n.o.s. 2.3 UN1967 n/a Prohibited
Insecticide gases, toxic, flammable, n.o.s., Inhalation hazard A, B, C or D 2.3 UN3355 n/a Prohibited
Inulin trinitrate (dry) Forbidden Prohibited
Iodine azide (dry) Forbidden Prohibited
Iodine monochloride 8 UN1792 II Prohibited
Iodine pentafluoride 5.1 UN2495 I Prohibited
2-Iodobutane 3 UN2390 II Only ORM-D Prohibited 3A
Iodomethylpropanes 3 UN2391 II Only ORM-D Prohibited 3A
Iodopropanes 3 UN2392 III Only ORM-D Prohibited 3A
Iodoxy compounds (dry) Forbidden Prohibited
Iridium nitratopentamine iridium nitrate Forbidden Prohibited
Iron chloride, see Ferric chloride, etc.
Iron oxide, spent, or Iron sponge, spent obtained from coal gas purification 4.2 UN1376 III Prohibited
Iron pentacarbonyl 6.1 UN1994 I Prohibited
Iron sesquichloride, see Ferric chloride, etc.
Irritating material, see Tear gas substances, etc.
Isobutane see also Petroleum gases, liquified 2.1 UN1969 n/a Only ORM-D Prohibited 2A
Isobutanol or Isobutyl alcohol 3 UN1212 III Only ORM-D Prohibited 3A
Isobutyl acetate 3 UN1213 II Only ORM-D Prohibited 3A
Isobutyl acrylate, inhibited 3 UN2527 III Only ORM-D Prohibited 3A
Isobutyl alcohol, see Isobutanol
Isobutyl aldehyde, see Isobutyraldehyde
Isobutyl chloroformate 6.1 NA2742 I Prohibited
Isobutyl formate 3 UN2393 II Only ORM-D Prohibited 3A
Isobutyl isobutyrate 3 UN2528 III Only ORM-D Prohibited 3A
Isobutyl isocyanate 3 UN2486 I Prohibited
Isobutyl methacrylate, inhibited 3 UN2283 III Only ORM-D Prohibited 3A
Isobutyl propionate 3 UN2394 III Only ORM-D Prohibited 3A
Isobutylamine 3 UN1214 II Prohibited
Isobutylene see also Petroleum gases, liquefied 2.1 UN1055 n/a Only ORM-D Prohibited 2A
Isobutyraldehyde or Isobutyl aldehyde 3 UN2045 II Only ORM-D Prohibited 3A
Isobutyric acid 3 UN2529 III Only ORM-D Prohibited 3A
Isobutyric anhydride 3 UN2530 III Only ORM-D Prohibited 3A
Isobutyronitrile 3 UN2284 II Prohibited
Isobutyryl chloride 3 UN2395 II Prohibited
Isocyanates, flammable, toxic, n.o.s. or Isocyanate solutions, flammable, toxic, n.o.s. flashpoint less than 23 degrees C 3 UN2478 II Prohibited
Isocyanates, toxic, flammable, n.o.s. or Isocyanate solutions, toxic, flammable, n.o.s. flashpoint not less than 23 degrees C but not more than 61 degrees C and boiling point less than 300 degrees C 6.1 UN3080 II Prohibited
Isocyanates, toxic, n.o.s. or Isocyanate solutions, toxic, n.o.s. flashpoint more than 61 degrees C and boiling point less than 300 degrees C 6.1 UN2206 II Prohibited

USPS Packaging Instructions
Hazardous Materials Descriptions and
Proper Shipping Names
(a) Hazard Class
(b) ID Number
(c) DOT
PG
(d) USPS Mailability
(e) Domestic Mail Air
(f) Domestic Mail Surface
(g)
Isocyanates, toxic, n.o.s. or Isocyanate solutions, toxic, n.o.s. flashpoint more than 61 degrees C and boiling point less than 300 degrees C 6.1 UN2206 III Only ORM-D 6A 6A
Isocyanatobenzotrifluorides 6.1 UN2285 II Prohibited
Isoheptenes 3 UN2287 II Only ORM-D Prohibited 3A
Isohexenes 3 UN2288 II Only ORM-D Prohibited 3A
Isooctane, see Octanes
Isooctenes 3 UN1216 II Only ORM-D Prohibited 3A
Isopentane, see Pentanes
Isopentanoic acid, see Corrosive liquids, n.o.s.
Isopentenes 3 UN2371 I Only ORM-D Prohibited 3A
Isophorone diisocyanate 6.1 UN2290 III Only ORM-D 6A 6A
Isophoronediamine 8 UN2289 III Only ORM-D 8A 8A
Isoprene, inhibited 3 UN1218 I Only ORM-D Prohibited 3A
Isopropanol or Isopropyl alcohol 3 UN1219 II Only ORM-D Prohibited 3A
Isopropenyl acetate 3 UN2403 II Only ORM-D Prohibited 3A
Isopropenylbenzene 3 UN2303 III Only ORM-D Prohibited 3A
Isopropyl acetate 3 UN1220 II Only ORM-D Prohibited 3A
Isopropyl acid phosphate 8 UN1793 III Only ORM-D 8A 8A
Isopropyl alcohol, see Isopropanol
Isopropyl butyrate 3 UN2405 III Only ORM-D Prohibited 3A
Isopropyl chloroacetate 3 UN2947 III Only ORM-D Prohibited 3A
Isopropyl chloroformate 6.1 UN2407 I Prohibited
Isopropyl 2-chloropropionate 3 UN2934 III Only ORM-D Prohibited 3A
Isopropyl isobutyrate 3 UN2406 II Only ORM-D Prohibited 3A
Isopropyl isocyanate 3 UN2483 I Prohibited Prohibited 3A
Isopropyl mercaptan, see Propanethiols
Isopropyl nitrate 3 UN1222 II Only ORM-D Prohibited 3A
Isopropyl phosphoric acid, see Isopropyl acid phosphate
Isopropyl propionate 3 UN2409 II Only ORM-D Prohibited 3A
Isopropylamine 3 UN1221 I Prohibited
Isopropylbenzene 3 UN1918 III Only ORM-D Prohibited 3A
Isopropylcumyl hydroperoxide, with more than 72 percent in solution Forbidden Prohibited
Isosorbide dinitrate mixture with not less than 60 percent lactose, mannose, starch or calcium hydrogen phosphate 4.1 UN2907 II Prohibited
Isosorbide-5-mononitrate 4.1 UN3251 III Only ORM-D Prohibited 3A
Isothiocyanic acid Forbidden Prohibited
- J -
Jet fuel, see Fuel, aviation, turbine engine
Jet, perforating guns, charged oil well, with detonator 1.1D NA0124 II Prohibited
Jet, perforating guns, charged oil well, with detonator 1.4D NA0494 II Prohibited
Jet, perforating guns, charged oil well, without detonator 1.1D UN0124 II Prohibited
Jet, perforating guns, charged oil well, without detonator 1.4D UN0494 II Prohibited
Jet, perforators, see Charges, shaped, commercial etc.
Jet tappers, without detonator, see Charges, shaped, commercial, etc.
Jet thrust igniters, for rocket motors or Jato, see Igniters
Jet thrust unit (Jato), see Rockets motors
- K -
Kerosene 3 UN1223 III Only ORM-D Prohibited 3A
Ketones, liquid, n.o.s. 3 UN1224 I Prohibited
Ketones, liquid, n.o.s. 3 UN1224 II, III Only ORM-D Prohibited 3A
Krypton, compressed 2.2 UN1056 n/a Only ORM-D 2B 2B
Krypton, refrigerated liquid (cryogenic liquid) 2.2 UN1970 n/a Prohibited
- L -
Lacquer base or lacquer chips, nitrocellulose, dry, see Nitrocellulose, etc. (UN2557)
Lacquer base or lacquer chips, plastic, wet with alcohol or solvent, see Nitrocellulose (UN2059, UN2555, UN2556) or Paint etc. (UN1263)
Lead acetate 6.1 UN1616 III Only ORM-D 6A 6A
Lead arsenates 6.1 UN1617 II Prohibited
Lead arsenites 6.1 UN1618 II Prohibited
Lead azide (dry) Forbidden Prohibited
Lead azide, wetted with not less than 20 percent water or mixture of alcohol and water, by mass 1.1A UN0129 II Prohibited
Lead compounds, soluble, n.o.s. 6.1 UN2291 III Only ORM-D 6A 6A
Lead cyanide 6.1 UN1620 II Prohibited
Lead dioxide 5.1 UN1872 III Only ORM-D 5A 5A
Lead dross, see Lead sulfate with more
than 3 percent free acid
Lead mononitroresorcinate 1.1A NA0473 II Prohibited
Lead nitrate 5.1 UN1469 II Prohibited
Lead nitroresorcinate (dry) Forbidden Prohibited
Lead perchlorate, solid 5.1 UN1470 II Prohibited
Lead perchlorate, solution 5.1 UN1470 II Prohibited
Lead peroxide, see Lead dioxide
Lead phosphite, dibasic 4.1 UN2989 II Prohibited
Lead phosphite, dibasic 4.1 UN2989 III Only ORM-D Prohibited 4A
Lead picrate (dry) Forbidden Prohibited
Lead styphnate (dry) Forbidden Prohibited
Lead styphnate, wetted or Lead trinitroresorcinate, wetted with not less than 20 percent water or mixture of alcohol and water, by mass 1.1A UN0130 II Prohibited
Lead sulfate with more than 3 percent free acid 8 UN1794 II Only ORM-D and per 348.2 8A 8A
Lead trinitroresorcinate, see Lead styphnate, etc.
Life-saving appliances, not self-inflating containing dangerous goods as equipment 9 UN3072 n/a Prohibited
Life-saving appliances, self-inflating 9 UN2990 n/a Prohibited
Lighter replacement cartridges containing liquefied petroleum gases (and similar devices, each not exceeding 65 grams), see Lighters or Lighter refills etc. containing flammable gas
Lighters or Lighter refills cigarettes, containing flammable gas 2.1 UN1057 n/a Mailable only with RCSC approval per 343.25 and DMM C023.4.4 Prohibited 3C
Lighters for cigars, cigarettes, etc., with lighter fluids 3 NA1226 II Mailable only with RCSC approval per 343.25 and DMM C023.4.4 Prohibited 3C
Lighters, fuse 1.4S UN0131 II Prohibited
Lime, unslaked, see Calcium oxide
Liquefied gas, flammable, n.o.s. 2.1 UN3161 n/a Only ORM-D Prohibited 2A
Liquefied gas, n.o.s. 2.2 UN3163 n/a Only ORM-D 2B 2B
Liquefied gas, oxidizing, n.o.s. 2.2 UN3157 n/a Only ORM-D 2B 2B
Liquefied gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3308 n/a Prohibited
Liquefied gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3309 n/a Prohibited
Liquefied gas, toxic, flammable, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3160 n/a Prohibited
Liquefied gas, toxic, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3162 n/a Prohibited
Liquefied gas, toxic, oxidizing, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3310 n/a Prohibited
Liquefied gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone A, B, C, or D 2.3 UN3307 n/a Prohibited
Liquified gases, nonflammable charged with nitrogen, carbon dioxide, or air 2.2 UN1058 n/a Only ORM-D 2B 2B
Liquefied hydrocarbon gas, see Hydrocarbon gas mixtures, liquefied, n.o.s., etc.
Liquefied natural gas, see Methane, etc. (UN1972)
Liquified petroleum gas, see Petroleum gases, liquefied
Lithium 4.3 UN1415 I Prohibited Prohibited 4A
Lithium acetylide ethylenediamine complex, see Water-reactive solid etc.
Lithium alkyls 4.2 UN2445 I Prohibited
Lithium aluminum hydride 4.3 UN1410 I Prohibited
Lithium aluminum hydride, ethereal 4.3 UN1411 I Prohibited
Lithium batteries packed with equipment 9 UN3091 II Prohibited
Lithium battery 9 UN3090 II Only as permitted in 348.22b 9C 9C
Lithium borohydride 4.3 UN1413 I Prohibited
Lithium ferrosilicon 4.3 UN2830 II Only ORM-D Prohibited 4A
Lithium hydride 4.3 UN1414 I Prohibited Prohibited 4A
Lithium hydride, fused solid 4.3 UN2805 II Only ORM-D Prohibited 4A
Lithium hydroxide, monohydrate or Lithium hydroxide, solid 8 UN2680 II Only ORM-D 8A 8A
Lithium hydroxide, solution 8 UN2679 II, III Only ORM-D 8A 8A
Lithium hypochlorite, dry or Lithium hypochlorite mixtures, dry 5.1 UN1471 II Only ORM-D 5A 5A
Lithium in cartridges, see Lithium
Lithium nitrate 5.1 UN2722 III Only ORM-D 5A 5A
Lithium nitride 4.3 UN2806 I Prohibited Prohibited 4A
Lithium peroxide 5.1 UN1472 II Only ORM-D 5A 5A
Lithium silicon 4.3 UN1417 II Only ORM-D Prohibited 5A
LNG, see Methane etc. (UN1972)
London purple 6.1 UN1621 II Prohibited 6A 6A
LPG, see Petroleum gases, liquefied
Lye, see Sodium hydroxide solution
- M -
Magnesium or Magnesium alloys with more than 50 percent magnesium in pellets, turnings, or ribbons 4.1 UN1869 III Only ORM-D Prohibited 4A
Magnesium alkyls 4.2 UN3053 I Prohibited
Magnesium aluminum phosphide 4.3 UN1419 I Prohibited
Magnesium arsenate 6.1 UN1622 II Prohibited
Magnesium bisulfite solution, see Bisulfites, aqueous solutions, n.o.s.
Magnesium bromate 5.1 UN1473 II Only ORM-D 5A 5A
Magnesium chlorate 5.1 UN2723 II Only ORM-D 5A 5A
Magnesium diamide 4.2 UN2004 II Prohibited
Magnesium diphenyl 4.2 UN2005 I Prohibited
Magnesium dross, wet or hot Forbidden Prohibited
Magnesium fluorosilicate 6.1 UN2853 III Only ORM-D 6A 6A
Magnesium granules, coated particle size not less than 149 microns 4.3 UN2950 III Prohibited
Magnesium hydride 4.3 UN2010 I Prohibited
Magnesium nitrate 5.1 UN1474 III Only ORM-D 5A 5A
Magnesium perchlorate 5.1 UN1475 II Only ORM-D 5A 5A
Magnesium peroxide 5.1 UN1476 II Only ORM-D 5A 5A
Magnesium phosphide 4.3 UN2011 I Prohibited
Magnesium, powder or Magnesium alloys, powder 4.3 UN1418 I Prohibited
Magnesium, powder or Magnesium alloys, powder 4.3 UN1418 II, III Prohibited
Magnesium scrap, see Magnesium etc. (UN1869)
Magnesium silicide 4.3 UN2624 II Prohibited
Magnetized material, see 49 CFR 173.21 n/a n/a n/a Mailable only per 349.24 9B 9B
Maleic acid 8 NA2215 III Only ORM-D 8A 8A
Maleic anhydride 8 UN2215 III Only ORM-D 8A 8A
Malononitrile 6.1 UN2647 II Prohibited
Mancozeb (manganese ethylenebisdithiocarbamate complex with zinc) see Maneb etc.
Maneb or Maneb preparations with not less than 60 percent maneb 4.2 UN2210 III Prohibited
Maneb stabilized or Maneb preparations, stabilized against self-heating 4.3 UN2968 III Prohibited
Manganese nitrate 5.1 UN2724 III Only ORM-D 5A 5A
Manganese resinate 4.1 UN1330 III Only ORM-D Prohibited 4A
Mannitan tetranitrate Forbidden Prohibited
Mannitol hexanitrate (dry) Forbidden Prohibited
Mannitol hexanitrate, wetted or Nitromannite, wetted with not less than 40 percent water, or mixture of alcohol and water, by mass 1.1D UN0133 II Prohibited
Marine pollutants, liquid or solid, n.o.s., see Environmentally hazardous substances, liquid or solid, n.o.s.
Matches, block, see Matches, strike anywhere
Matches, fusee 4.1 UN2224 III Prohibited
Matches, safety (book, card, or strike on box) 4.1 UN1944 III Mailable per 344.22 and DMM C023.5.3 Prohibited 4B
Matches, strike anywhere 4.1 UN1331 III Prohibited
Matches, wax, Vesta 4.1 UN1945 III Prohibited
Matting acid, see Sulfuric acid etc.
Medicine, liquid, flammable, toxic, n.o.s. 3 UN3248 II Prohibited
Medicine, liquid, flammable, toxic, n.o.s. 3 UN3248 III Only ORM-D Prohibited 3A
Medicine, liquid, toxic, n.o.s. 6.1 UN1851 II, III Only ORM-D 6A 6A
Medicine, solid, toxic, n.o.s. 6.1 UN3249 II, III Only ORM-D 6A 6A
Medicines, corrosive, liquid, n.o.s. 8 NA1760 II, III Only ORM-D 8A 8A
Medicines, corrosive, solid, n.o.s. 8 NA1759 II, III Only ORM-D 8A 8A
Medicines, flammable, liquid, n.o.s. 3 NA1993 I, II, III Only ORM-D Prohibited 3A
Medicines, flammable, solid, n.o.s. 4.1 NA1325 II Only ORM-D Prohibited 4A
Medicines, oxidizing substance, solid, n.o.s. 5.1 NA1479 II Only ORM-D 5A 5A
Memtetrahydrophthalic anhydride, see Corrosive liquids, n.o.s.
Mercaptans, liquid, flammable, n.o.s. or Mercaptan mixture, liquid, flammable, n.o.s. 3 UN3336 I, II, III Only ORM-D Prohibited 3A
Mercaptans, liquid, flammable, toxic, n.o.s. or Mercaptan mixtures, liquid, flammable, toxic, n.o.s. 3 UN1228 II Prohibited
Mercaptans, liquid, flammable, toxic, n.o.s. or Mercaptan mixtures, liquid, flammable, toxic, n.o.s. 3 UN1228 III Only ORM-D Prohibited 3A
Mercaptans, liquid, toxic, flammable, n.o.s. or Mercaptan mixtures, liquid, toxic, flammable, n.o.s., flashpoint not less than 23 degrees C 6.1 UN3071 II Prohibited
5-Mercaptotetrazol-1-acetic acid 1.4C UN0448 II Prohibited
Mercuric arsenate 6.1 UN1623 II Prohibited
Mercuric chloride 6.1 UN1624 II Prohibited
Mercuric compounds, see Mercury compounds, etc.
Mercuric nitrate 6.1 UN1625 II Prohibited
Mercuric potassium cyanide 6.1 UN1626 I Prohibited
Mercuric sulfocyanate, see Mercury thiocyanate
Mercurol, see Mercury nucleate
Mercurous azide Forbidden Prohibited
Mercurous compounds, see Mercury compounds, etc.
Mercurous nitrate 6.1 UN1627 II Prohibited
Mercury 8 UN2809 III Prohibited
Mercury contained in manufactured articles 8 UN2809 III Prohibited
Mercury acetate 6.1 UN1629 II Prohibited
Mercury acetylide Forbidden Prohibited
Mercury ammonium chloride 6.1 UN1630 II Prohibited
Mercury based pesticides, liquid, flammable, toxic, flashpoint less than
23 degrees C 3 UN2778 I, II Prohibited
Mercury based pesticides, liquid, toxic 6.1 UN3012 I, II Prohibited
Mercury based pesticides, liquid, toxic 6.1 UN3012 III Only ORM-D 6A 6A
Mercury based pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3011 I, II Prohibited
Mercury based pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3011 III Only ORM-D 6A 6A
Mercury based pesticides, solid, toxic 6.1 UN2777 I, II Prohibited
Mercury based pesticides, solid, toxic 6.1 UN2777 III Only ORM-D 6A 6A
Mercury benzoate 6.1 UN1631 II Prohibited
Mercury bromides 6.1 UN1634 II Prohibited
Mercury compounds, liquid, n.o.s. 6.1 UN2024 I, II Prohibited
Mercury compounds, liquid, n.o.s. 6.1 UN2024 III Only ORM-D 6A 6A
Mercury compounds, solid, n.o.s. 6.1 UN2025 I, II Prohibited
Mercury compounds, solid, n.o.s. 6.1 UN2025 III Only ORM-D 6A 6A
Mercury cyanide 6.1 UN1636 II Prohibited
Mercury fulminate, wetted with not less than 20 percent water, or mixture of alcohol and water, by mass 1.1A UN0135 II Prohibited
Mercury gluconate 6.1 UN1637 II Prohibited
Mercury iodide aquabasic ammonobasic (Iodide of Millon's base) Forbidden Prohibited
Mercury iodide, solution 6.1 UN1638 II Prohibited
Mercury iodide, solid 6.1 UN1638 II Prohibited
Mercury nitride Forbidden Prohibited
Mercury nucleate 6.1 UN1639 II Prohibited
Mercury oleate 6.1 UN1640 II Prohibited
Mercury oxide 6.1 UN1641 II Prohibited
Mercury oxycyanide, desensitized 6.1 UN1642 II Prohibited
Mercury oxycyanide Forbidden Prohibited
Mercury potassium iodide 6.1 UN1643 II Prohibited
Mercury salicylate 6.1 UN1644 II Prohibited
Mercury sulfates 6.1 UN1645 II Prohibited
Mercury thiocyanate 6.1 UN1646 II Prohibited
Mesityl oxide 3 UN1229 III Prohibited
Metal alkyl halides, water-reactive, n.o.s. or Metal aryl halides, water-reactive, n.o.s. 4.2 UN3049 I Prohibited
Metal alkyl hydrides, water-reactive, n.o.s. or Metal aryl hydrides, water-reactive, n.o.s. 4.2 UN3050 I Prohibited
Metal alkyl, solution, n.o.s. 3 NA9195 II Only ORM-D Prohibited 3A
Metal alkyls, water-reactive, n.o.s. or Metal aryls, water-reactive, n.o.s. 4.2 UN2003 I Prohibited
Metal carbonyls, n.o.s. 6.1 UN3281 I, II Prohibited
Metal carbonyls, n.o.s. 6.1 UN3281 III Only ORM-D 6A 6A
Metal catalyst, dry 4.2 UN2881 I, II Prohibited
Metal catalyst, dry 4.2 UN2881 III Only ORM-D Prohibited 4A
Metal catalyst, wetted with a visible excess of liquid 4.2 UN1378 II Prohibited
Metal hydrides, flammable, n.o.s. 4.1 UN3182 II, III Only ORM-D Prohibited 3A
Metal hydrides, water-reactive, n.o.s. 4.3 UN1409 I Prohibited
Metal hydrides, water-reactive, n.o.s. 4.3 UN1409 II Prohibited
Metal powder, self-heating, n.o.s. 4.2 UN3189 II, III Prohibited
Metal powders, flammable, n.o.s. 4.1 UN3089 II, III Only ORM-D Prohibited 4A
Metal salts of methyl nitramine (dry) Forbidden Prohibited
Metal salts of organic compounds, flammable, n.o.s. 4.1 UN3181 II, III Only ORM-D Prohibited 4A
Metaldehyde 4.1 UN1332 III Only ORM-D Prohibited 4A
Metallic substances, water-reactive, n.o.s. 4.3 UN3208 I Prohibited
Metallic substances, water-reactive, n.o.s. 4.3 UN3208 II, III Prohibited
Metallic substance, water-reactive, self-heating, n.o.s. 4.3 UN3209 I, II, III Prohibited
Methacrylaldehyde, inhibited 3 UN2396 II Prohibited
Methacrylic acid, inhibited 8 UN2531 III Only ORM-D 8A 8A
Methacrylonitrile, inhibited 3 UN3079 I Prohibited
Methallyl alcohol 3 UN2614 III Only ORM-D Prohibited 3A
Methane and hydrogen, mixtures, see Hydrogen and methane, mixtures etc.
Methane, compressed or Natural gas, compressed (with high methane content) 2.1 UN1971 n/a Only ORM-D Prohibited 2A
Methane, refrigerated liquid (cryogenic liquid) or Natural gas, refrigerated liquid (cryogenic liquid), with high methane content 2.1 UN1972 n/a Prohibited Prohibited 2A
Methanesulfonyl chloride 6.1 UN3246 I Prohibited
Methanol 3 UN1230 II Only ORM-D Prohibited 3A
Methazoic acid Forbidden Prohibited
4-Methoxy-4-methylpentan-2-one 3 UN2293 III Only ORM-D Prohibited 3A
1-Methoxy-2-propanol 3 UN3092 III Only ORM-D Prohibited 3A
Methoxymethyl isocyanate 3 UN2605 I Prohibited
Methyl 2-chloropropionate 3 UN2933 III Only ORM-D Prohibited 3A
Methyl acetate 3 UN1231 II Only ORM-D Prohibited 3A
Methyl acetylene and propadiene mixtures, stabilized 2.1 UN1060 n/a Only ORM-D Prohibited 2A
Methyl acrylate, inhibited 3 UN1919 II Only ORM-D Prohibited 3A
Methyl alcohol, see Methanol
Methyl allyl chloride 3 UN2554 II Only ORM-D Prohibited 3A
Methyl amyl ketone, see Amyl methyl ketone
Methyl bromide 2.3 UN1062 n/a Prohibited
Methyl bromide and chloropicrin mixtures with more than 2 percent chloropicrin, see Chloropicrin and methyl bromide mixtures
Methyl bromide and chloropicrin mixtures with not more than 2 percent chloropicrin, see Methyl bromide
Methyl bromide and ethylene dibromide mixtures, liquid 6.1 UN1647 I Prohibited
Methyl bromoacetate 6.1 UN2643 II Prohibited
2-Methyl-1-butene 3 UN2459 I Prohibited
2-Methyl-2-butene 3 UN2460 II Prohibited
3-Methyl-1-butene 3 UN2561 I Prohibited
Methyl tert-butyl ether 3 UN2398 II Only ORM-D Prohibited 3A
Methyl butyrate 3 UN1237 II Only ORM-D Prohibited 3A
Methyl chloride, or Refrigerant gas R 40 2.1 UN1063 Only ORM-D Prohibited 2A
Methyl chloride and chloropicrin mixtures, see Chloropicrin and methyl chloride mixtures
Methyl chloride and methylene chloride mixtures 2.1 UN1912 n/a Only ORM-D Prohibited 2A
Methyl chloroacetate 6.1 UN2295 I Prohibited
Methyl chlorocarbonate, see Methyl chloroformate
Methyl chloroform, see 1,1,1-Trichloroethane
Methyl chloroformate 6.1 UN1238 I Prohibited
Methyl chloromethyl ether 6.1 UN1239 I Prohibited
Methyl dichloroacetate 6.1 UN2299 III Only ORM-D 6A 6A
Methyl ethyl ether, see Ethyl methyl ether
Methyl ethyl ketone peroxide, in solution with more than 9 percent by mass active oxygen Forbidden Prohibited
2-Methyl-5-ethylpyridine 6.1 UN2300 III Only ORM-D 6A 6A
Methyl ethyl ketone, see Ethyl methyl ketone
Methyl fluoride, or Refrigerant gas R 41 2.1 UN2454 n/a Only ORM-D Prohibited 2A
Methyl formate 3 UN1243 I Only ORM-D Prohibited 3A
2-Methyl-2-heptanethiol 6.1 UN3023 I Prohibited
Methyl iodide 6.1 UN2644 I Prohibited
Methyl isobutyl carbinol 3 UN2053 III Only ORM-D Prohibited 3A
Methyl isobutyl ketone 3 UN1245 II Only ORM-D Prohibited 3A
Methyl isobutyl ketone peroxide, in solution with more than 9 percent by mass active oxygen Forbidden Prohibited
Methyl isocyanate 6.1 UN2480 I Prohibited
Methyl isopropenyl ketone, inhibited 3 UN1246 II Only ORM-D Prohibited 3A
Methyl isothiocyanate 6.1 UN2477 I Prohibited
Methyl isovalerate 3 UN2400 II Only ORM-D Prohibited 3A
Methyl magnesium bromide, in ethyl ether 4.3 UN1928 I Prohibited
Methyl mercaptan 2.3 UN1064 n/a Prohibited
Methyl mercaptopropionaldehyde, see Thia-4-pentanal
Methyl methacrylate monomer, inhibited 3 UN1247 II Only ORM-D Prohibited 3A
Methyl nitramine (dry) Forbidden Prohibited
Methyl nitrate Forbidden Prohibited
Methyl nitrite Forbidden Prohibited
Methyl norbornene dicarboxylic anhydride, see Corrosive liquids, n.o.s.
Methyl orthosilicate 6.1 UN2606 I Prohibited
Methyl parathion liquid 6.1 NA3018 II Prohibited
Methyl parathion solid 6.1 NA2783 II Prohibited
Methyl phosphonic dichloride 6.1 NA9206 I Prohibited
Methyl phosphonothioic dichloride, anhydrous, see Corrosive liquids, n.o.s.
Methyl phosphonous dichloride, pyrophoric liquid 6.1 NA2845 I Prohibited
Methyl picric acid (heavy metal salts of) Forbidden Prohibited
Methyl propionate 3 UN1248 II Only ORM-D Prohibited 3A
Methyl propyl ether 3 UN2612 II Only ORM-D Prohibited 3A
Methyl propyl ketone 3 UN1249 II Only ORM-D Prohibited 3A
Methyl sulfate, see Dimethyl sulfate
Methyl sulfide, see Dimethyl sulfide
Methyl trichloroacetate 6.1 UN2533 III Only ORM-D 6A 6A
Methyl trimethylol methane trinitrate Forbidden Prohibited
Methyl vinyl ketone, stabilized 6.1 UN1251 I Prohibited
Methyl vinyl ketone, stabilized 3 UN1251 II Prohibited
Methylal 3 UN1234 II Prohibited
Methylamine, anhydrous 2.1 UN1061 n/a Only ORM-D Prohibited 2A
Methylamine, aqueous solution 3 UN1235 II Only ORM-D Prohibited 3A
Methylamine dinitramine and dry salts thereof Forbidden Prohibited
Methylamine nitroform Forbidden Prohibited
Methylamine perchlorate (dry) Forbidden Prohibited
Methylamyl acetate 3 UN1233 III Only ORM-D Prohibited 3A
N-Methylaniline 6.1 UN2294 III Only ORM-D 6A 6A
alpha-Methylbenzyl alcohol 6.1 UN2937 III Only ORM-D 6A 6A
3-Methylbutan-2-one 3 UN2397 II Only ORM-D Prohibited 3A
N-Methylbutylamine 3 UN2945 II Prohibited
Methylchlorosilane 2.3 UN2534 n/a Prohibited
Methylcyclohexane 3 UN2296 II Only ORM-D Prohibited 3A
Methylcyclohexanols, flammable 3 UN2617 III Only ORM-D Prohibited 3A
Methylcyclohexanone 3 UN2297 III Only ORM-D Prohibited 3A
Methylcyclopentane 3 UN2298 II Only ORM-D Prohibited 3A
Methyldichloroarsine 6.1 NA1556 I Prohibited
Methyldichlorosilane 4.3 UN1242 I Prohibited
Methylene chloride, see Dichloromethane
Methylene glycol dinitrate Forbidden Prohibited
2-Methylfuran 3 UN2301 II Only ORM-D Prohibited 3A
a-Methylglucoside tetranitrate Forbidden Prohibited
a-Methylglycerol trinitrate Forbidden Prohibited
5-Methylhexan-2-one 3 UN2302 III Only ORM-D Prohibited 3A
Methylhydrazine 6.1 UN1244 I Prohibited
4-Methylmorpholine or n-methylmorpholine 3 UN2535 II Prohibited
Methylpentadienes 3 UN2461 II Only ORM-D Prohibited 3A
2-Methylpentan-2-ol 3 UN2560 III Only ORM-D Prohibited 3A
Methylpentanes, see Hexanes
Methylphenyldichlorosilane 8 UN2437 II Only ORM-D 8A 8A
1-Methylpiperidine 3 UN2399 II Prohibited
Methyltetrahydrofuran 3 UN2536 II Only ORM-D Prohibited 3A
Methyltrichlorosilane 3 UN1250 I Prohibited
alpha-Methylvaleraldehyde 3 UN2367 II Only ORM-D Prohibited 3A
Mine rescue equipment containing carbon dioxide, see Carbon dioxide
Mines with bursting charge 1.1D UN0137 II Prohibited
Mines with bursting charge 1.1F UN0136 II Prohibited
Mines with bursting charge 1.2D UN0138 II Prohibited
Mines with bursting charge 1.2F UN0294 II Prohibited
Mixed acid, see Nitrating acid, mixtures etc.
Mobility aids, see Wheel chair, electric
Model rocket motor 1.4C NA0276 II Prohibited
Model rocket motor 1.4S NA0323 II Mailable only with approval per 341.22 and DMM C023.2.2 Prohibited 1A
Molybdenum pentachloride 8 UN2508 III Only ORM-D 8A 8A
Monochloroacetone (unstabilized) Forbidden Prohibited
Monochloroethylene, see Vinyl chloride, inhibited
Monoethanolamine, see Ethanolamine solutions
Monoethylamine, see Ethylamine
Morpholine 3 UN2054 III Only ORM-D Prohibited 3A
Morpholine, aqueous, mixture, see Corrosive liquids, n.o.s.
Motor fuel anti-knock compounds, see Motor fuel anti-knock mixtures
Motor fuel anti-knock mixtures 6.1 UN1649 I Prohibited
Motor spirit, see Gasoline
Muriatic acid, see Hydrochloric acid solution
Musk xylene, see 5-tert-Butyl-2,4,6-trinitro-m-xylene
- N -
Naphtha see Petroleum distallates n.o.s.
Naphthalene, crude or Naphthalene, refined 4.1 UN1334 III Only ORM-D Prohibited 4A
Naphthalene diozonide Forbidden Prohibited
Naphthalene, molten 4.1 UN2304 III Only ORM-D Prohibited 4A
alpha-Naphthylamine 6.1 UN2077 III Only ORM-D 6A 6A
beta-Naphthylamine 6.1 UN1650 II Prohibited
Naphthylamineperchlorate Forbidden Prohibited
Naphthylthiourea 6.1 UN1651 II Prohibited
Naphthylurea 6.1 UN1652 II Prohibited
Natural gases (with high methane content), see Methane, etc. (UN1971, UN1972)
Neohexane, see Hexanes
Neon, compressed 2.2 UN1065 n/a Only ORM-D 2B 2B
Neon, refrigerated liquid (cryogenic liquid) 2.2 UN1913 n/a Prohibited
New explosive or explosive device, see 49 CFR 173.51 and 173.56 Prohibited
Nickel carbonyl 6.1 UN1259 I Prohibited
Nickel cyanide 6.1 UN1653 II Prohibited
Nickel nitrate 5.1 UN2725 III Only ORM-D 5A 5A
Nickel nitrite 5.1 UN2726 III Only ORM-D 5A 5A
Nickel picrate Forbidden Prohibited
Nicotine 6.1 UN1654 II Prohibited
Nicotine compounds, liquid, n.o.s. or Nicotine preparations, liquid, n.o.s. 6.1 UN3144 I, II Prohibited
Nicotine compounds, liquid, n.o.s. or Nicotine preparations, liquid, n.o.s. 6.1 UN3144 III Only ORM-D 6A 6A
Nicotine compounds, solid, n.o.s. or Nicotine preparations, solid, n.o.s. 6.1 UN1655 I, II Prohibited
Nicotine compounds, solid, n.o.s. or Nicotine preparations, solid, n.o.s. 6.1 UN1655 III Only ORM-D 6A 6A
Nicotine hydrochloride or Nicotine hydrochloride solution 6.1 UN1656 II Prohibited
Nicotine salicylate 6.1 UN1657 II Prohibited
Nicotine sulfate, solid 6.1 UN1658 II Prohibited
Nicotine sulfate, solution 6.1 UN1658 II Prohibited
Nicotine tartrate 6.1 UN1659 II Prohibited
Nitrated paper (unstable) Forbidden Prohibited
Nitrates of diazonium compounds Forbidden Prohibited
Nitrates, inorganic, aqueous solution, n.o.s. 5.1 UN3218 II, III Only ORM-D 5A 5A
Nitrates, inorganic, n.o.s. 5.1 UN1477 II, III Only ORM-D 5A 5A
Nitrating acid mixtures, with more than 50 percent nitric acid 8 UN1796 I Prohibited
Nitrating acid mixtures, with not more than 50 percent nitric acid 8 UN1796 II Prohibited
Nitrating acid mixtures, spent with more than 50 percent nitric acid 8 UN1826 I Prohibited
Nitrating acid mixtures, spent with not more than 50 percent nitric acid 8 UN1826 II Prohibited
Nitric acid other than red fuming, with more than 70 percent nitric acid 8 UN2031 I Prohibited
Nitric acid other than red fuming, with not more than 70 percent nitric acid 8 UN2031 II Prohibited
Nitric acid, red fuming 8 UN2032 I Prohibited
Nitric oxide, compressed 2.3 UN1660 n/a Prohibited
Nitric oxide and dinitrogen tetroxide mixtures or Nitric oxide and nitrogen dioxide mixtures 2.3 UN1975 n/a Prohibited
Nitriles, flammable, toxic, n.o.s. 3 UN3273 I, II Prohibited
Nitriles, toxic, flammable, n.o.s. 6.1 UN3275 I, II Prohibited
Nitriles, toxic, n.o.s. 6.1 UN3276 I, II Prohibited
Nitriles, toxic, n.o.s. 6.1 UN3276 III Only ORM-D 6A 6A
Nitrites, inorganic, aqueous solution, n.o.s. 5.1 UN3219 II, III Only ORM-D 5A 5A
Nitrites, inorganic, n.o.s. 5.1 UN2627 II Only ORM-D 5A 5A
3-Nitro-4-chlorobenzotrifluoride 6.1 UN2307 II Prohibited
Nitro isobutane triol trinitrate Forbidden Prohibited
Nitro urea 1.1D UN0147 II Prohibited
2-Nitro-2-methylpropanol nitrate Forbidden Prohibited
6-Nitro-4-diazotoluene-3-sulfonic acid (dry) Forbidden Prohibited
N-Nitro-N-methylglycolamide nitrate Forbidden Prohibited
N-Nitroaniline Forbidden Prohibited
Nitroanilines (o-; m-; p-;) 6.1 UN1661 II Prohibited
Nitroanisole 6.1 UN2730 III Only ORM-D 6A 6A
Nitrobenzene 6.1 UN1662 II Prohibited
m-Nitrobenzene diazonium perchlorate Forbidden Prohibited
Nitrobenzenesulfonic acid 8 UN2305 II Only ORM-D 8A 8A
Nitrobenzol, see Nitrobenzene
5-Nitrobenzotriazol 1.1D UN0385 II Prohibited
Nitrobenzotrifluorides 6.1 UN2306 II Prohibited
Nitrobromobenzenes liquid 6.1 UN2732 III Only ORM-D 6A 6A
Nitrobromobenzenes solid 6.1 UN2732 III Only ORM-D 6A 6A
Nitrocellulose, with not more than 12.6 percent nitrogen, by dry mass, or Nitrocellulose mixture with pigment or Nitrocellulose mixture with plasticizer or Nitrocellulose mixture with pigment and plasticizer 4.1 UN2557 II Only ORM-D Prohibited 4A
Nitrocellulose, dry or wetted with less than 25 percent water (or alcohol), by mass 1.1D UN0340 II Prohibited
Nitrocellulose membrane filters 4.1 UN3270 II Only ORM-D Prohibited 4A
Nitrocellulose, plasticized with not less than 18 percent plasticizing substance, by mass 1.3C UN0343 II Prohibited
Nitrocellulose, solution, flammable with not less than 12.6 percent nitrogen, by mass, and not more than 55 percent nitrocellulose 3 UN2059 II, III Only ORM-D Prohibited 3A
Nitrocellulose, unmodified or plasticized with less than 18 percent plasticizing substance, by mass 1.1D UN0341 II Prohibited
Nitrocellulose, wetted with not less than 25 percent alcohol, by mass 1.3C UN0342 II Prohibited
Nitrocellulose, with alcohol with not less than 25 percent alcohol, by mass, and with not more than 12.6 percent nitrogen, by dry mass 4.1 UN2556 II Only ORM-D Prohibited 4A
Nitrocellulose with water with not less than 25 percent water, by mass 4.1 UN2555 II Only ORM-D Prohibited 4A
Nitrochlorobenzene, see Chloronitrobenzenes etc.
Nitrocresols 6.1 UN2446 III Only ORM-D 6A 6A
Nitroethane 3 UN2842 III Only ORM-D Prohibited 3A
Nitroethyl nitrate Forbidden Prohibited
Nitroethylene polymer Forbidden Prohibited
Nitrogen, compressed 2.2 UN1066 n/a Only ORM-D 2B 2B
Nitrogen dioxide, see Dinitrogen tetroxide
Nitrogen fertilizer solution, see Fertilizer ammoniating solution etc.
Nitrogen, mixtures with rare gases, see Rare gases and nitrogen mixtures etc.
Nitrogen peroxide, see Dinitrogen tetroxide liquefied
Nitrogen, refrigerated liquid cryogenic liquid 2.2 UN1977 n/a Prohibited
Nitrogen tetroxide and nitric oxide mixtures, see Nitric oxide and nitrogen tetroxide mixtures
Nitrogen tetroxide, see Dinitrogen tetroxide liquefied
Nitrogen trichloride Forbidden Prohibited
Nitrogen trifluoride, compressed 2.2 UN2451 n/a Prohibited
Nitrogen triiodide Forbidden Prohibited
Nitrogen triiodide monoamine Forbidden Prohibited
Nitrogen trioxide 2.3 UN2421 n/a Prohibited
Nitroglycerin, desensitized with not less than 40 percent non-volatile water insoluble phlegmatizer, by mass 1.1D UN0143 II Prohibited
Nitroglycerin, liquid, not desensitized Forbidden Prohibited
Nitroglycerin mixture, desensitized, liquid, flammable, n.o.s. with not more than 30 percent nitroglycerin, by mass 3 UN3343 n/a Prohibited
Nitroglycerin mixture, desensitized, solid, n.o.s. with more than 2 percent but not more than 10 percent nitroglycerin, by mass 4.1 UN3319 II Prohibited
Nitroglycerin, solution in alcohol, with more than 1 percent but not more than 5 percent nitroglycerin 3 UN3064 II Prohibited
Nitroglycerin, solution in alcohol, with more than 1 percent but not more than 10 percent nitroglycerin 1.1D UN0144 II Prohibited
Nitroglycerin, solution in alcohol, with not more than 1 percent nitroglycerin 3 UN1204 II Prohibited
Nitroguanidine nitrate Forbidden Prohibited
Nitroguanidine or Picrite, dry or wetted with less than 20 percent water, by mass 1.1D UN0282 II Prohibited
Nitroguanidine, wetted or Picrite, wetted with not less than 20 percent water, by mass 4.1 UN1336 I Prohibited
1-Nitrohydantoin Forbidden Prohibited
Nitrohydrochloric acid 8 UN1798 I Prohibited
Nitromannite (dry) Forbidden Prohibited
Nitromannite, wetted, see Mannitol hexanitrate, etc.
Nitromethane 3 UN1261 II Only ORM-D Prohibited 3A
Nitromuriatic acid, see Nitrohydrochloric acid
Nitronaphthalene 4.1 UN2538 III Only ORM-D Prohibited 4A
Nitophenols (o-; m-; p-;) 6.1 UN1663 III Only ORM-D 6A 6A
m-Nitrophenyldinitro methane Forbidden Prohibited
Nitropropanes 3 UN2608 III Only ORM-D Prohibited 3A
p-Nitrosodimethylaniline 4.2 UN1369 II Prohibited
Nitrostarch, dry or wetted with less than 20 percent water, by mass 1.1D UN0146 II Prohibited
Nitrostarch, wetted with not less than 20 percent water, by mass 4.1 UN1337 I Prohibited
Nitrosugars (dry) Forbidden Prohibited
Nitrosyl chloride 2.3 UN1069 n/a Prohibited
Nitrosylsulfuric acid 8 UN2308 II Only ORM-D 8A 8A
Nitrotoluenes, liquid (o-; m-; p-;) 6.1 UN1664 II Prohibited
Nitrotoluenes, solid (m-; or p-;) 6.1 UN1664 II Prohibited
Nitrotoluidines (mono) 6.1 UN2660 III Only ORM-D 6A 6A
Nitrotriazolone or NTO 1.1D UN0490 II Prohibited
Nitrous oxide 2.2 UN1070 n/a Only ORM-D 2B 2B
Nitrous oxide and carbon dioxide mixtures, see Carbon dioxide and nitrous oxide mixtures
Nitrous oxide, refrigerated liquid 2.2 UN2201 n/a Prohibited
Nitroxylenes (o-; m-; p-;) 6.1 UN1665 II Prohibited
Nitroxylol, see Nitroxylenes
Nonanes 3 UN1920 III Only ORM-D Prohibited 3A
Nonflammable gas, n.o.s., see Compressed or Liquefied gases, etc. (UN1955, UN1956)
Nonliquefied gases, see Compressed gases, etc.
Nonliquefied hydrocarbon gas, see Hydrocarbon gases, compressed, n.o.s.
Nonyltrichlorosilane 8 UN1799 II Prohibited
Nordhausen acid, see Sulfuric acid, fuming etc.
- O -
Octadecyltrichlorosilane 8 UN1800 II Prohibited
Octadiene 3 UN2309 II Only ORM-D Prohibited 3A
1,7-Octadiene-3,5-diyne-1,8-dimethoxy- 9-octadecynoic acid Forbidden Prohibited
Octafluorobut-2-ene or Refrigerant gas R 1318 2.2 UN2422 n/a Prohibited
Octafluorocyclobutane, or Refrigerant gas RC 318 2.2 UN1976 n/a Prohibited
Octafluoropropane or Refrigerant gas R 218 2.2 UN2424 n/a Prohibited
Octanes 3 UN1262 II Only ORM-D Prohibited 3A
Octogen, see Cyclotetramethylene tetranitramine, etc.
Octolite or Octol, dry or wetted with less than 15 percent water, by mass 1.1D UN0266 II Prohibited
Octonal 1.1D UN0496 n/a Prohibited
Octyl aldehydes 3 UN1191 III Only ORM-D Prohibited 3A
Octyltrichlorosilane 8 UN1801 II Prohibited
Oil gas, compressed 2.3 UN1071 n/a Prohibited
Oleum, see Sulfuric acid, fuming etc.
Organic peroxide, type A, liquid or solid Forbidden Prohibited
Organic peroxide type B, liquid 5.2 UN3101 II Only ORM-D 5A 5A
Organic peroxide type B, liquid, temperature controlled 5.2 UN3111 II Prohibited
Organic peroxide type B, solid 5.2 UN3102 II Only ORM-D 5A 5A
Organic peroxide type B, solid, temperature controlled 5.2 UN3112 II Prohibited
Organic peroxide type C, liquid 5.2 UN3103 II Only ORM-D 5A 5A
Organic peroxide type C, liquid, temperature controlled 5.2 UN3113 II Prohibited
Organic perixide type C, solid 5.2 UN3104 II Only ORM-D 5A 5A
Organic peroxide type C, solid, temperature controlled 5.2 UN3114 II Prohibited
Organic peroxide type D, liquid 5.2 UN3105 II Only ORM-D 5A 5A
Organic peroxide type D, liquid, temperature controlled 5.2 UN3115 II Prohibited
Organic peroxide type D, solid 5.2 UN3106 II Only ORM-D 5A 5A
Organic peroxide type D, solid, temperature controlled 5.2 UN3116 II Prohibited
Organic peroxide type E, liquid 5.2 UN3107 II Only ORM-D 5A 5A
Organic peroxide type E, liquid, temperature controlled 5.2 UN3117 II Prohibited
Organic peroxide type E, solid 5.2 UN3108 II Only ORM-D 5A 5A
Organic peroxide type E, solid, temperature controlled 5.2 UN3118 II Prohibited
Organic peroxide type F, liquid 5.2 UN3109 II Only ORM-D 5A 5A
Organic peroxide type F, liquid, temperature controlled 5.2 UN3119 II Prohibited
Organic peroxide type F, solid 5.2 UN3110 II Only ORM-D 5A 5A
Organic peroxide type F, solid, temperature controlled 5.2 UN3120 II Prohibited
Organic phosphate, mixed with compressed gas or Organic phosphate compound, mixed with compressed gas or Organic phosphorous compound, mixed with compressed gas 2.3 NA1955 n/a Prohibited
Organic pigments, self-heating 4.2 UN3313 II, III Prohibited
Organoarsenic compound, n.o.s. 6.1 UN3280 I, II Prohibited
Organoarsenic compound, n.o.s. 6.1 UN3280 III Only ORM-D 6A 6A
Organochlorine pesticides liquid, flammable, toxic, flashpoint less than 23 degrees C 3 UN2762 I, II Prohibited Prohibited 3A
Organochlorine pesticide, liquid, toxic 6.1 UN2996 I, II Prohibited
Organochlorine pesticide, liquid, toxic 6.1 UN2996 III Only ORM-D 6A 6A
Organochlorine pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN2995 I, II Prohibited
Organochlorine pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN2995 III Only ORM-D 6A 6A
Organochlorine pesticides, solid, toxic 6.1 UN2761 I, II Prohibited
Organochlorine pesticides, solid, toxic 6.1 UN2761 III Only ORM-D 6A 6A
Organometallic compound or Compound solution or Compound dispersion, water-reactive, flammable, n.o.s. 4.3 UN3207 I, II, III Prohibited
Organometallic compound, toxic n.o.s. 6.1 UN3282 I, II Prohibited
Organometallic compound, toxic n.o.s. 6.1 UN3282 III Only ORM-D 6A 6A
Organophosphorus compound, toxic, flammable, n.o.s. 6.1 UN3279 I, II Prohibited
Organophosphorus compound, toxic n.o.s. 6.1 UN3278 I, II Prohibited
Organophosphorus compound, toxic n.o.s. 6.1 UN3278 III Only ORM-D 6A 6A
Organophosphorus pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C 3 UN2784 I, II Prohibited Prohibited 3A
Organophosphorus pesticides, liquid, toxic 6.1 UN3018 I, II Prohibited
Organophosphorus pesticides, liquid, toxic 6.1 UN3018 III Only ORM-D 6A 6A
Organophosphorus pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3017 I, II Prohibited
Organophosphorus pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3017 III Only ORM-D 6A 6A
Organophosphorus pesticides, solid, toxic 6.1 UN2783 I, II Prohibited
Organophosphorus pesticides, solid, toxic 6.1 UN2783 III Only ORM-D 6A 6A
Organotin compounds, liquid, n.o.s. 6.1 UN2788 I, II Prohibited
Organotin compounds, liquid, n.o.s 6.1 UN2788 III Only ORM-D 6A 6A
Organotin compounds, solid, n.o.s. 6.1 UN3146 I, II Prohibited
Organotin compounds, solid, n.o.s. 6.1 UN3146 III Only ORM-D 6A 6A
Organotin pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C 3 UN2787 I, II Prohibited
Organotin pesticides, liquid, toxic 6.1 UN3020 I, II Prohibited
Organotin pesticides, liquid, toxic 6.1 UN3020 III Only ORM-D 6A 6A
Organotin pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3019 I, II Prohibited
Organotin pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3019 III Only ORM-D 6A 6A
Organotin pesticides, solid, toxic 6.1 UN2786 I, II Prohibited
Organotin pesticides, solid, toxic 6.1 UN2786 III Only ORM-D 6A 6A
Orthonitroaniline, see Nitroanilines etc.
Osmium tetroxide 6.1 UN2471 I Prohibited
Other regulated substances, liquid, n.o.s. 9 NA3082 III Only ORM-D 9C 9C
Other regulated substances, solid, n.o.s. 9 NA3077 III Only ORM-D 9C 9C
Oxidizing liquid, corrosive, n.o.s. 5.1 UN3098 I, II Prohibited
Oxidizing liquid, corrosive, n.o.s. 5.1 UN3098 III Only ORM-D 5A 5A
Oxidizing liquid, n.o.s. 5.1 UN3139 I Prohibited
Oxidizing liquid, n.o.s. 5.1 UN3139 II, III Only ORM-D 5A 5A
Oxidizing liquid, toxic, n.o.s. 5.1 UN3099 I, II Prohibited
Oxidizing liquid, toxic, n.o.s. 5.1 UN3099 III Only ORM-D 5A 5A
Oxidizing solid, corrosive, n.o.s. 5.1 UN3085 I, II Prohibited
Oxidizing solid, corrosive, n.o.s. 5.1 UN3085 III Only ORM-D 5A 5A
Oxidizing solid, flammable, n.o.s. 5.1 UN3137 I Prohibited
Oxidizing solid, n.o.s. 5.1 UN1479 I Prohibited
Oxidizing solid, n.o.s. 5.1 UN1479 II, III Only ORM-D 5A 5A
Oxidizing solid, self-heating, n.o.s. 5.1 UN3100 II Prohibited
Oxidizing solid, toxic, n.o.s. 5.1 UN3087 I, II Prohibited
Oxidizing solid, toxic, n.o.s. 5.1 UN3087 III Only ORM-D 5A 5A
Oxidizing solid, water-reactive, n.o.s. 5.1 UN3121 n/a Prohibited
Oxygen and carbon dioxide mixtures, see Carbon dioxide and oxygen mixtures, compressed
Oxygen, compressed 2.2 UN1072 n/a Only ORM-D 2B 2B
Oxygen difluoride, compressed 2.3 UN2190 n/a Prohibited
Oxygen generator, chemical 5.1 UN3356 II Prohibited
Oxygen mixtures with rare gases, see Rare gases and oxygen mixtures, compressed
Oxygen, refrigerated liquid (cryogenic liquid) 2.2 UN1073 n/a Prohibited
- P -
Paint including paint, lacquer, enamel, stain, shellac solutions, varnish, polish, liquid filler, and liquid lacquer base 3 UN1263 I, II, III Only ORM-D Prohibited 3A
Paint or Paint related material 8 UN3066 II, III Only ORM-D 8A 8A
Paint related material including paint thinning, drying, removing, or reducing compound 3 UN1263 I, II, III Only ORM-D Prohibited 8A
Paper, unsaturated oil treated incompletely dried (including carbon paper) 4.2 UN1379 III Prohibited
Paraformaldehyde 4.1 UN2213 III Only ORM-D Prohibited 4A
Paraldehyde 3 UN1264 III Only ORM-D Prohibited 3A
Paranitroaniline, solid, see Nitroanilines etc.
Parathion 6.1 NA2783 I, II Prohibited
Parathion and compressed gas mixture 2.3 NA1967 n/a Prohibited
Paris green, solid, see Copper acetoarsenite
PCB, see Polychlorinated biphenyls
Pentaporane 4.2 UN1380 I Prohibited
Pentachloroethane 6.1 UN1669 II Prohibited
Pentachlorophenol 6.1 UN3155 II Prohibited
Pentaerythrite tetranitrate (dry) Forbidden Prohibited
Pentaerythrite tetranitrate or Pentaerythritol tetranitrate or PETN, with not less than 7 percent wax by mass 1.1D UN0411 II Prohibited
Pentaerythrite tetranitrate mixture, desensitized, solid, n.o.s. with more than 10 percent but not more than 20 percent PETN, by mass 4.1 UN3344 II Prohibited
Pentaerythrite tetranitrate, wetted or Pentaerythritol tetranitrate, wetted or PETN, wetted with not less than 25 percent water, by mass, or Pentaerythrite tetranitrate, or Pentaerythritol tetranitrate, or PETN, desensitized with not less than 15 percent phlegmatizer by mass 1.1D UN0150 II Prohibited
Pentaerythritol tetranitrate, see Pentaerythrite tetranitrate, etc.
Pentafluoroethane or Refrigerant gas R 125 2.2 UN3220 n/a Only ORM-D 2B 2B
Pentamethylheptane 3 UN2286 III Only ORM-D Prohibited 3A
Pentane-2,4-dione 3 UN2310 III Only ORM-D Prohibited 3A
Pentanes 3 UN1265 I, II Only ORM-D Prohibited 3A
Pentanitroaniline (dry) Forbidden Prohibited
Pentanols 3 UN1105 II, III Only ORM-D Prohibited 3A
1-Pentene (n-amylene) 3 UN1108 I Only ORM-D Prohibited 3A
1-Pentol 8 UN2705 II Only ORM-D 8A 8A
Pentolite, dry or wetted with less than 15 percent water, by mass 1.1D UN0151 II Prohibited
Pepper spray, see Aerosols, etc. or Self-defense spray, non-pressurized
Perchlorates, inorganic, aqueous solution, n.o.s. 5.1 UN3211 II, III Only ORM-D 5A 5A
Perchlorates, inorganic, n.o.s. 5.1 UN1481 II, III Only ORM-D 5A 5A
Perchloric acid with more than 50 percent but not more than 72 percent acid, by mass 5.1 UN1873 I Prohibited
Perchloric acid with not more than 50 percent acid by mass 8 UN1802 II Prohibited
Perchloric acid, with more than 72 percent acid by mass Forbidden Prohibited
Perchloroethylene, see Tetrachloroethylene
Perchloromethyl mercaptan 6.1 UN1670 I Prohibited
Perchloryl fluoride 2.3 UN3083 n/a Prohibited
Percussion caps, see Primers, cap type
Perfluoro (ethyl vinyl ether) 2.1 UN3154 n/a Only ORM-D Prohibited 2A
Perfluoro (methyl vinyl ether) 2.1 UN3153 n/a Only ORM-D Prohibited 2A
Perfluoro-2-butene, see Octafluorobut-2-ene
Perfumery products with flammable solvents 3 UN1266 II, III Only ORM-D Prohibited 3A
Permanganates, inorganic, aqueous solution, n.o.s. 5.1 UN3214 II Only ORM-D 5A 5A
Permanganates, inorganic, n.o.s. 5.1 UN1482 II, III Only ORM-D 5A 5A
Peroxides, inorganic, n.o.s. 5.1 UN1483 II Prohibited
Peroxides, inorganic, n.o.s. 5.1 UN1483 III Only ORM-D 5A 5A
Peroxyacetic acid, with more than 43 percent and with more than 6 percent hydrogen peroxide Forbidden Prohibited
Persulfates, inorganic, aqueous solution, n.o.s. 5.1 UN3216 III Only ORM-D 5A 5A
Persulfates, inorganic, n.o.s. 5.1 UN3215 III Only ORM-D 5A 5A
Pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C 3 UN3021 I, II Prohibited
Pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN2903 I, II Prohibited
Pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN2903 III Only ORM-D 6A 6A
Pesticides, liquid, toxic, n.o.s. 6.1 UN2902 I, II Prohibited
Pesticides, liquid, toxic, n.o.s. 6.1 UN2902 III Only ORM-D 6A 6A
Pesticides, solid, toxic, n.o.s. 6.1 UN2588 I, II Prohibited
Pesticides, solid, toxic, n.o.s. 6.1 UN2588 III Only ORM-D 6A 6A
PETN, see Pentaerythrite tetranitrate
PETN/TNT, see Pentolite, etc.
Petro, see Gasoline
Petroleum crude oil 3 UN1267 I Prohibited
Petroleum crude oil 3 UN1267 II, III Only ORM-D Prohibited 3A
Petroleum distillates, n.o.s. or Petroleum products, n.o.s. 3 UN1268 I, II, III Only ORM-D Prohibited 3A
Petroleum gases, liquefied or Liquefied petroleum gas 2.1 UN1075 n/a Only ORM-D Prohibited 2A
Petroleum oil 3 NA1270 I Prohibited
Petroleum oil 3 NA1270 II, III Only ORM-D Prohibited 3A
Phenacyl bromide 6.1 UN2645 II Prohibited
Phenetidines 6.1 UN2311 III Only ORM-D 6A 6A
Phenol, molten 6.1 UN2312 II Prohibited
Phenol, solid 6.1 UN1671 II Prohibited
Phenol solutions 6.1 UN2821 II Prohibited
Phenol solutions 6.1 UN2821 III Only ORM-D 6A 6A
Phenolsulfonic acid, liquid 8 UN1803 II Only ORM-D 8A 8A
Phenoxyacetic acid derivative pesticide, liquid, flammable, toxic flashpoint less than 23 degrees C 3 UN3346 I, II Prohibited
Phenoxyacetic acid derivative pesticide, liquid, toxic 6.1 UN3348 I Prohibited
Phenoxyacetic acid derivative pesticide, liquid, toxic 6.1 UN3348 II, III Only ORM-D 6A 6A
Phenoxyacetic acid derivative pesticide, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3347 I Prohibited
Phenoxyacetic acid derivative pesticide, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN3347 II, III Only ORM-D 6A 6A
Phenoxyacetic acid derivative pesticide, solid, toxic 6.1 UN3345 I Prohibited
Phenoxyacetic acid derivative pesticide, solid, toxic 6.1 UN3345 II, III Only ORM-D 6A 6A
Phenyl chloroformate 6.1 UN2746 II Prohibited
Phenyl isocyanate 6.1 UN2487 I Prohibited
Phenyl mercaptan 6.1 UN2337 I Prohibited
Phenyl phosphorus dichloride 8 UN2798 II Only ORM-D 8A 8A
Phenyl phosphorus thiodichloride 8 UN2799 II Only ORM-D 8A 8A
Phenyl urea pesticides, liquid, toxic 6.1 UN3002 I, II Prohibited
Phenyl urea pesticides, liquid, toxic 6.1 UN3002 III Only ORM-D 6A 6A
Phenylacetonitrile, liquid 6.1 UN2470 III Only ORM-D 6A 6A
Phenylacetyl chloride 8 UN2577 II Only ORM-D 8A 8A
Phenylcarbylamine chloride 6.1 UN1672 I Prohibited
m-Phenylene diaminediperchlorate (dry) Forbidden Prohibited
Phenylenediamines (o-; m-; p-;) 6.1 UN1673 III Only ORM-D 6A 6A
Phenylhydrazine 6.1 UN2572 II Prohibited
Phenylmercuric acetate 6.1 UN1674 II Prohibited
Phenylmercuric compounds, n.o.s. 6.1 UN2026 I, II Prohibited
Phenylmercuric compounds, n.o.s. 6.1 UN2026 III Only ORM-D 6A 6A
Phenylmercuric hydroxide 6.1 UN1894 II Prohibited
Phenylmercuric nitrate 6.1 UN1895 II Prohibited
Phenyltrichlorosilane 8 UN1804 II Prohibited
Phosgene 2.3 UN1076 Prohibited
9-Phosphabicyclononanes or Cyclooctadiene phosphines 4.2 UN2940 II Prohibited
Phosphine 2.3 UN2199 Prohibited
Phosphoric acid 8 UN1805 III Only ORM-D 8A 8A
Phosphoric acid triethyleneimine, see Tris-(1-aziridinyl)phosphine oxide, solution
Phosphorus, amorphous 4.1 UN1338 III Prohibited
Phosphoric anhydride, see Phosphorus pentoxide
Phosphorous acid 8 UN2834 III Only ORM-D 8A 8A
Phosphorus bromide, see Phosphorus tribromide
Phosphorus chloride, see Phosphorus trichloride
Phosphorus heptasulfide, free from yellow or white phosphorus 4.1 UN1339 II Prohibited
Phosphorus oxybromide 8 UN1939 II Prohibited
Phosphorus oxybromide, molten 8 UN2576 II Prohibited
Phosphorus oxychloride 8 UN1810 II Prohibited
Phosphorus pentabromide 8 UN2691 II Only ORM-D 8A 8A
Phosphorus pentachloride 8 UN1806 II Prohibited
Phosphorus pentafluoride, compressed 2.3 UN2198 Prohibited
Phosphorus pentasulfide, free from yellow or white phosphorus 4.3 UN1340 II Only ORM-D Prohibited 4A
Phosphorus pentoxide 8 UN1807 II Only ORM-D 8A 8A
Phosphorus sesquisulfide, free from yellow or white phosphorus 4.1 UN1341 II Prohibited
Phosphorus tribromide 8 UN1808 II Prohibited
Phosphorus trichloride 6.1 UN1809 I Prohibited
Phosphorus trioxide 8 UN2578 III Only ORM-D 8A 8A
Phosphorus trisulfide, free from yellow or white phosphorus 4.1 UN1343 II Prohibited
Phosphorus, white dry or Phosphorus, white, under water or Phosphorus white, in solution or Phosphorus, yellow dry or Phosphorus, yellow, under water or Phosphorus, yellow, in solution 4.2 UN1381 I Prohibited
Phosphorus white, molten 4.2 UN2447 I Prohibited
Phosphorus (white or red) and a chlorate, mixtures of Forbidden Prohibited
Phosphoryl chloride, see Phosphorus oxychloride
Phthalic anhydride with more than .05 percent maleic anhydride 8 UN2214 III Only ORM-D 8A 8A
Picolines 3 UN2313 III Only ORM-D Prohibited 3A
Picric acid, see Trinitrophenol, etc.
Picric acid, wet, with not less than 10 percent water 4.1 NA1344 I Prohibited
Picrite, see Nitroguanidine, etc.
Picryl chloride, see Trinitrochlorobenzene
Pine oil 3 UN1272 III Only ORM-D Prohibited 3A
alpha-Pinene 3 UN2368 III Only ORM-D Prohibited 3A
Piperazine 8 UN2579 III Only ORM-D 8A 8A
Piperidine 8 UN2401 I Prohibited
Pivaloyl chloride, see Trimethylacetyl chloride
Plastic molding compound in dough, sheet, or extruded rope form evolving flammable vapor 9 UN3314 III Only ORM-D 9C 9C
Plastic solvent, n.o.s., see Flammable liquids, n.o.s.
Plastics, nitrocellulose-based, self-heating, n.o.s. 4.2 UN2006 III Prohibited
Poisonous gases, n.o.s., see Compressed or Liquefied gases, flammable or toxic, n.o.s.
Polyalkylamines, n.o.s., see Amines, etc.
Polychlorinated biphenyls, liquid 9 UN2315 II Only ORM-D 9C 9C
Polychlorinated biphenyls, solid 9 UN2315 II Only ORM-D 9C 9C
Polyester resin kit 3 UN3269 n/a Only ORM-D Prohibited 3A
Polyhalogenated biphenyls, liquid or Polyhalogenated terphenyls, liquid 9 UN3151 II Only ORM-D 9C 9C
Polyhalogenated biphenyls, solid or Polyhalogenated terphenyls, solid 9 UN3152 II Only ORM-D 9C 9C
Polymeric beads, expandable, evolving flammable vapor 9 UN2211 III Only ORM-D 9C 9C
Potassium 4.3 UN2257 I Prohibited
Potassium arsenate 6.1 UN1677 II Prohibited
Potassium arsenite 6.1 UN1678 II Prohibited
Potassium bisulfite solution, see Bisulfites, inorganic, aqueous solutions, n.o.s.
Potassium borohydride 4.3 UN1870 I Prohibited
Potassium bromate 5.1 UN1484 II Only ORM-D 5A 5A
Potassium carbonyl Forbidden Prohibited
Potassium chlorate 5.1 UN1485 II Only ORM-D 5A 5A
Potassium chlorate mixed with mineral oil, see Explosive, blasting, type C
Potassium chlorate, aqueous solution 5.1 UN2427 II, III Only ORM-D 5A 5A
Potassium cuprocyanide 6.1 UN1679 II Prohibited
Potassium cyanide 6.1 UN1680 I Prohibited
Potassium dichloro isocyanurate or Potassium dichloro-s-triazinetrione, see Dichloroisocyanuric acid, dry or Dichloroisocyanuric acid salts etc.
Potassium dithionite or Potassium hydrosulfite 4.2 UN1929 II Prohibited
Potassium fluoride 6.1 UN1812 III Only ORM-D 6A 6A
Potassium fluoroacetate 6.1 UN2628 I Prohibited
Potassium fluorosilicate 6.1 UN2655 III Only ORM-D 6A 6A
Potassium hydrate, see Potassium hydroxide, solid
Potassium hydrogen fluoride solution, see Corrosive liquid, n.o.s.
Potassium hydrogen fluoride, see Potassium hydrogendifluoride
Potassium hydrogen sulfate 8 UN2509 II Only ORM-D 8A 8A
Potassium hydrogendifluoride, solid 8 UN1811 II Only ORM-D 8A 8A
Potassium hydrogendifluoride, solution 8 UN1811 II Only ORM-D 8A 8A
Potassium hydrosulfite, see Potassium dithionite
Potassium hydroxide, liquid, see Potassium hydroxide solution
Potassium hydroxide, solid 8 UN1813 II Only ORM-D 8A 8A
Potassium hydroxide, solution 8 UN1814 II, III Only ORM-D 8A 8A
Potassium hypochlorite, solution, see Hypochlorite solutions
Potassium, metal alloys 4.3 UN1420 I Prohibited Prohibited 4A
Potassium metal, liquid alloy, see Alkali metal alloys, liquid etc.
Potassium metavanadate 6.1 UN2864 II Prohibited
Potassium monoxide 8 UN2033 II Only ORM-D 8A 8A
Potassium nitrate 5.1 UN1486 III Only ORM-D 5A 5A
Potassium nitrate and sodium nitrite mixtures 5.1 UN1487 II Only ORM-D 5A 5A
Potassium nitrite 5.1 UN1488 II Only ORM-D 5A 5A
Potassium perchlorate, solid 5.1 UN1489 II Only ORM-D 5A 5A
Potassium perchlorate, solution 5.1 UN1489 II Only ORM-D 5A 5A
Potassium permanganate 5.1 UN1490 II Only ORM-D 5A 5A
Potassium peroxide 5.1 UN1491 I Prohibited
Potassium persulfate 5.1 UN1492 III Only ORM-D 5A 5A
Potassium phosphide 4.3 UN2012 I Prohibited
Potassium selenate, see Selenates or Selenites
Potassium selenite, see Selenates or Selenites
Potassium sodium alloys 4.3 UN1422 I Prohibited
Potassium sulfide, anhydrous or Potassium sulfide with less than 30 percent water of crystallization 4.2 UN1382 II Prohibited
Potassium sulfide, hydrated with not less than 30 percent water of crystallization 8 UN1847 II Prohibited
Potassium superoxide 5.1 UN2466 I Prohibited
Powder cake, wetted or Powder paste, wetted with not less than 25 percent water, by mass 1.3C UN0159 II Prohibited
Powder cake, wetted or Powder paste, wetted with not less than 17 percent alcohol by mass 1.1C UN0433 II Prohibited
Powder paste, see Powder cake, etc.
Powder, smokeless 1.1C UN0160 II Prohibited
Powder, smokeless 1.3C UN0161 II Prohibited
Power device, explosive, see Cartridges, power device
Primers, cap type 1.1B UN0377 II Prohibited
Primers, cap type 1.4B UN0378 II Prohibited
Primers, cap type 1.4S UN0044 II Prohibited
Primers, small arms, see Primers, cap type
Primers, tubular 1.3G UN0319 II Prohibited
Primers, tubular 1.4G UN0320 II Prohibited
Primers, tubular 1.4S UN0376 II Prohibited
Printing ink, flammable 3 UN1210 I, II, II Only ORM-D Prohibited 3A
Projectiles, illuminating, see Ammunition, illuminating, etc.
Projectiles, inert with tracer 1.3G UN0424 II Prohibited
Projectiles, inert with tracer 1.4G UN0425 II Prohibited
Projectiles, inert with tracer 1.4S UN0345 II Prohibited
Projectiles, with burster or expelling charge 1.2D UN0346 II Prohibited
Projectiles, with burster or expelling charge 1.2F UN0426 II Prohibited
Projectiles, with burster or expelling charge 1.2G UN0434 II Prohibited
Projectiles, with burster or expelling charge 1.4D UN0347 II Prohibited
Projectiles, with burster or expelling charge 1.4F UN0427 II Prohibited
Projectiles, with burster or expelling charge 1.4G UN0435 II Prohibited
Projectiles, with bursting charge 1.1D UN0168 II Prohibited
Projectiles, with bursting charge 1.1F UN0167 II Prohibited
Projectiles, with bursting charge 1.2D UN0169 II Prohibited
Projectiles, with bursting charge 1.2F UN0324 II Prohibited
Projectiles, with bursting charge 1.4D UN0344 II Prohibited
Propadiene mixed with acetylene, see Methyl acetylene and propadiene mixtures, stabilized
Propadiene, inhibited 2.1 UN2200 n/a Prohibited
Propane see also Petroleum gases, liquefied 2.1 UN1978 n/a Only ORM-D Prohibited 2A
Propanethiols 3 UN2402 II Only ORM-D Prohibited 3A
n-Propanol or Propyl alcohol, normal 3 UN1274 II, III Only ORM-D Prohibited 3A
Propargyl alcohol 3 NA1986 II Prohibited
Propellant, liquid 1.1C UN0497 II Prohibited
Propellant, liquid 1.3C UN0495 II Prohibited
Propellant, solid 1.1C UN0498 II Prohibited
Propellant, solid 1.3C UN0499 II Prohibited
Propionaldehyde 3 UN1275 II Only ORM-D Prohibited 3A
Propionic acid 8 UN1848 III Only ORM-D 8A 8A
Propionic anhydride 8 UN2496 III Only ORM-D 8A 8A
Propionitrile 3 UN2404 II Prohibited
Propionyl chloride 3 UN1815 II Prohibited
n-Propyl acetate 3 UN1276 II Only ORM-D Prohibited 3A
Propyl alcohol, see Propanol
n-Propyl benzene 3 UN2364 III Only ORM-D Prohibited 3A
Propyl chloride 3 UN1278 II Prohibited
n-Propyl chloroformate 6.1 UN2740 I Prohibited
Propyl formates 3 UN1281 II Only ORM-D Prohibited 3A
n-Propyl isocyanate 6.1 UN2482 I Prohibited
Propyl mercaptan, see Propanethiols
n-Propyl nitrate 3 UN1865 II Only ORM-D Prohibited 3A
Propylamine 3 UN1277 II Prohibited
Propylene see also Petroleum gases, liquefied 2.1 UN1077 n/a Only ORM-D Prohibited 2A
Propylene chlorohydrin 6.1 UN2611 II Prohibited
Propylene oxide 3 UN1280 I Prohibited
Propylene tetramer 3 UN2850 III Only ORM-D Prohibited 3A
1,2-Propylenediamine 8 UN2258 II Prohibited
Propyleneimine, inhibited 3 UN1921 I Prohibited
Propyltrichlorosilane 8 UN1816 II Prohibited
Prussic acid, see Hydrogen cyanide etc.
Pyrethroid pesticide, liquid, flammable, toxic, flashpoint less than 23 degrees C 3 UN3350 I, II Prohibited
Pyrethroid pesticide, liquid, flammable, toxic, flashpoint less than 23 degrees C 6.1 UN3351 I Prohibited
Pyrethroid pesticide, liquid, flammable, toxic, flashpoint less than 23 degrees C 6.1 UN3351 II, III Only ORM-D 6A 6A
Pyrethroid pesticide, liquid, toxic 6.1 UN3352 I Prohibited
Pyrethroid pesticide, liquid, toxic 6.1 UN3352 II, III Only ORM-D 6A 6A
Pyrethroid pesticide, solid, toxic 6.1 UN3349 I Prohibited
Pyrethroid pesticide, solid, toxic 6.1 UN3349 II, III Only ORM-D 6A 6A
Pyridine 3 UN1282 II Prohibited
Pyridine perchlorate Forbidden Prohibited
Pyrophoric liquid, inorganic, n.o.s. 4.2 UN3194 I Prohibited
Pyrophoric liquids, organic, n.o.s. 4.2 UN2845 I Prohibited
Pyrophoric metals, n.o.s. or Pyrophoric alloys, n.o.s. 4.2 UN1383 I Prohibited
Pyrophoric organometallic compound, water-reactive, n.o.s. 4.2 UN3203 I Prohibited
Pyrophoric solid, inorganic, n.o.s. 4.2 UN3200 I Prohibited
Pyrophoric solids, organic, n.o.s. 4.2 UN2846 I Prohibited
Pyrosulfuryl chloride 8 UN1817 II Only ORM-D 8A 8A
Pyroxylin solution or solvent, see Nitrocellulose
Pyrrolidine 3 UN1922 II Prohibited
- Q -
Quebrachitol pentanitrate Forbidden Prohibited
Quicklime, see Calcium oxide
Quinoline 6.1 UN2656 III Only ORM-D 6A 6A
- R -
R 114, see Dichlorotetrafluroethane
R 115, see Chloropentafluoroethane
R 116, see Hexafluoroethane
R 12, see Dichlorodifluoromethane
R 124, see Chlorotetrafluoroethane
R 12B1, see Chlorodifluorobromomethane
R 13, see Chlorotrifluoromethane
R 133a, see Chlorotrifluoroethane
R 13B1, see Bromotrifluoromethane
R 14, see Tetrafluoromethane
R 152a, see Difluoroethane
R 21, see Dichlorofluoromethane
R 22, see Chlorodifluoromethane
R 500, see Dichlorodifluoromethane and difluorethane, etc.
R 502, see Chlorodifluoromethane and chloropentafluoroethane mixture, etc.
R 503, see Chlorotrifluoromethane and trifluoromethane, etc.
Radioactive material, excepted package-articles manufactured from natural or depleted uranium or natural thorium 7 UN2910 n/a Mailable per 347 7A
Radioactive material, excepted package-empty package or empty packaging 7 UN2910 n/a Prohibited
Radioactive material, excepted package-instruments or articles 7 UN2910 n/a Mailable per 347 7A
Radioactive material, excepted package-limited quantity of material 7 UN2910 n/a Mailable per 347 7A
Radioactive material, fissile, n.o.s. 7 UN2918 n/a Prohibited
Radioactive material, low specific activity, n.o.s. or Radioactive material, LSA, n.o.s. 7 UN2912 n/a Prohibited
Radioactive material, n.o.s. 7 UN2982 n/a Prohibited
Radioactive material, special form, n.o.s. 7 UN2974 n/a Prohibited
Radioactive material, surface contaminated object or Radioactive material, SCO 7 UN2913 n/a Prohibited
Railway torpedo, see Signals, railway track, explosive
Rare gases and nitrogen mixtures, compressed 2.2 UN1981 n/a Only ORM-D 2B 2B
Rare gases and oxygen mixtures, compressed 2.2 UN1980 n/a Only ORM-D 2B 2B
Rare gases, mixtures, compressed 2.2 UN1979 n/a Only ORM-D 2B 2B
RC318, see Octafluorocyclobutane
RDX and cyclotetramethylenetetranitramine, wetted or desensitized see RDX and HMX mixtures, wetted or desensitized
RDX and HMX mixtures, wetted with not less than 15 percent water by mass or RDX and HMX mixtures, desensitized with not less than 10 percent phlegmatizer by mass 1.1D UN0391 II Prohibited
RDX and Octogen mixtures, wetted or desensitized see RDX and HMX mixtures, wetted or desensitized, etc.
RDX, see Cyclotrimethylenetrinitramine, etc.
Receptacles, small, containing gas (gas cartridges) flammable, without release device, not refillable and not exceeding 1 L capacity 2.1 UN2037 n/a Only ORM-D Prohibited 2A
Receptacles, small, containing gas (gas cartridges) nonflammable, without release device, not refillable and not exceeding 1 L capacity 2.2 UN2037 n/a Only ORM-D 2B 2B
Red phosphorus, see Phosphorus, amorphous
Refrigerant gas R 404A 2.2 UN3337 n/a Only ORM-D 2B 2B
Refrigerant gas R 407A 2.2 UN3338 n/a Only ORM-D 2B 2B
Refrigerant gas R 407B 2.2 UN3339 n/a Only ORM-D 2B 2B
Refrigerant gas R 407C 2.2 UN3340 n/a Only ORM-D 2B 2B
Refrigerant gases, n.o.s. 2.2 UN1078 n/a Only ORM-D 2B 2B
Refrigerant gases, n.o.s., or Dispersant gases, n.o.s. 2.1 NA1954 n/a Only ORM-D Prohibited 2A
Refrigerating machine 3 NA1993 III Only ORM-D Prohibited 3A
Refrigerating machines, containing flammable, nonpoisonous, liquefied gas 2.1 NA1954 n/a Only ORM-D Prohibited 2A
Refrigerating machines, containing nonflammable, nontoxic, liquefied gas or ammonia solution (UN2672) 2.2 UN2857 n/a Only ORM-D 2B 2B
Regulated medical waste (sharps) 6.2 UN3291 II Mailable only with HQ approval per DMM C023.8.5 and 346.212; 346.23 6D Prohibited
Regulated medical waste (non-sharps) 6.2 UN3291 II Mailable only per DMM C023.8.6 and 346.212; 346.32 6E Prohibited
Release devices, explosive 1.4S UN0173 II Prohibited
Resin solution, flammable 3 UN1866 I, II, III Only ORM-D Prohibited 3A
Resorcinol 6.1 UN2876 III Only ORM-D 6A 6A
Rifle grenade, see Grenades, hand or rifle, etc.
Rifle powder, see Powder, smokeless (UN0160)
Rivets, explosive 1.4S UN0174 II Prohibited
Road asphalt or tar liquid, see Tars, liquid etc.
Rocket motors 1.3C UN0186 II Prohibited
Rocket motors 1.1C UN0280 II Prohibited
Rocket motors 1.2C UN0281 II Prohibited
Rocket motors, liquid fueled 1.2J UN0395 II Prohibited
Rocket motors, liquid fueled 1.3J UN0396 II Prohibited
Rocket motors with hypergolic liquids with or without an expelling charge 1.3L UN0250 II Prohibited
Rocket motors with hypergolic liquids with or without an expelling charge 1.2L UN0322 II Prohibited
Rockets, line-throwing 1.2G UN0238 II Prohibited
Rockets, line-throwing 1.3G UN0240 II Prohibited
Rockets, line-throwing 1.4G UN0453 II Prohibited
Rockets, liquid fueled with bursting charge 1.1J UN0397 II Prohibited
Rockets, liquid fueled with bursting charge 1.2J UN0398 II Prohibited
Rockets, with bursting charge 1.1E UN0181 II Prohibited
Rockets, with bursting charge 1.1F UN0180 II Prohibited
Rockets, with bursting charge 1.2E UN0182 II Prohibited
Rockets, with bursting charge 1.2F UN0295 II Prohibited
Rockets, with expelling charge 1.2C UN0436 II Prohibited
Rockets, with expelling charge 1.3C UN0437 II Prohibited
Rockets, with expelling charge 1.4C UN0438 II Prohibited
Rockets, with inert head 1.3C UN0183 II Prohibited
Rosin oil 3 UN1286 II, III Only ORM-D Prohibited 3A
Rubber solution 3 UN1287 II, III Only ORM-D Prohibited 3A
Rubidium 4.3 UN1423 I Prohibited
Rubidium hydroxide 8 UN2678 II Only ORM-D 8A 8A
Rubidium hydroxide solution 8 UN2677 II, III Only ORM-D 8A 8A
- S -
Safety fuse, see Fuse, safety
Samples, explosive, other than initiating explosives -- UN0190 II Prohibited
Sand acid, see Fluorosilicic acid
Seed cake with more than 1.5 percent oil and not more than 11 percent moisture 4.2 UN1386 III Prohibited
Seed cake with not more than 1.5 percent oil and not more than 11 percent moisture 4.2 UN2217 III Prohibited
Seed cake, containing vegetable oil solvent extractions and expelled seeds, with not more than 10 percent of oil and when the amount of moisture is higher than 11 percent, with not more than 20 percent of oil and moisture combined 4.2 UN1386 III Prohibited
Selenates or Selenites 6.1 UN2630 I Prohibited
Selenic acid 8 UN1905 I Prohibited
Selenium compound, n.o.s. 6.1 UN3283 I, II Prohibited
Selenium compound, n.o.s. 6.1 UN3283 III Only ORM-D 6A 6A
Selenium disulfide 6.1 UN2657 II Prohibited
Selenium hexafluoride 2.3 UN2194 Prohibited
Selenium nitride Forbidden Prohibited
Selenium oxide 6.1 NA2811 I Prohibited
Selenium oxychloride 8 UN2879 I Prohibited
Self-defense spray, aerosol, see Aerosols, etc.
Self-defense spray, non-pressurized 9 NA3334 III Only ORM-D 9C 9C
Self-heating liquid, corrosive, inorganic, n.o.s. 4.2 UN3188 II, III Prohibited
Self-heating liquid, corrosive, organic, n.o.s. 4.2 UN3185 II, III Prohibited
Self-heating liquid, inorganic, n.o.s. 4.2 UN3186 II, III Prohibited
Self-heating liquid, organic, n.o.s. 4.2 UN3183 II, III Prohibited
Self-heating liquid, toxic, inorganic, n.o.s. 4.2 UN3187 II, III Prohibited
Self-heating liquid, toxic, organic, n.o.s. 4.2 UN3184 II, III Prohibited
Self-heating solid, corrosive, inorganic, n.o.s. 4.2 UN3192 II, III Prohibited
Self-heating solid, corrosive, organic, n.o.s. 4.2 UN3126 II, III Prohibited
Self-heating solid, inorganic, n.o.s. 4.2 UN3190 II, III Prohibited
Self-heating solid, organic, n.o.s. 4.2 UN3088 II, III Prohibited
Self-heating solid, oxidizing, n.o.s. 4.2 UN3127 n/a Prohibited
Self-heating solid, toxic, inorganic, n.o.s. 4.2 UN3191 II, III Prohibited
Self-heating solid, toxic, organic, n.o.s. 4.2 UN3128 II, III Prohibited
Self-propelled vehicle, see Engines etc. or Batteries etc.
Self-reactive liquid type B 4.1 UN3221 II Prohibited
Self-reactive liquid type B, temperature controlled 4.1 UN3231 II Prohibited
Self-reactive liquid type C 4.1 UN3223 II Prohibited
Self-reactive liquid type C, temperature controlled 4.1 UN3233 II Prohibited
Self-reactive liquid type D 4.1 UN3225 II Prohibited
Self-reactive liquid type D, temperature controlled 4.1 UN3235 II Prohibited
Self-reactive liquid type E 4.1 UN3227 II Prohibited
Self-reactive liquid type E, temperature controlled 4.1 UN3237 II Prohibited
Self-reactive liquid type F 4.1 UN3229 II Prohibited
Self-reactive liquid type F, temperature controlled 4.1 UN3239 II Prohibited
Self-reactive solid type B 4.1 UN3222 II Prohibited
Self-reactive solid type B, temperature controlled 4.1 UN3232 II Prohibited
Self-reactive solid type C 4.1 UN3224 II Prohibited
Self-reactive solid type C, temperature controlled 4.1 UN3234 II Prohibited
Self-reactive solid type D 4.1 UN3226 II Prohibited
Self-reactive solid type D, temperature controlled 4.1 UN3236 II Prohibited
Self-reactive solid type E 4.1 UN3228 II Prohibited
Self-reactive solid type E, temperature controlled 4.1 UN3238 II Prohibited
Self-reactive solid type F 4.1 UN3230 II Prohibited
Self-reactive solid type F, temperature controlled 4.1 UN3240 II Prohibited
Shale Oil 3 UN1288 I Prohibited
Shale Oil 3 UN1288 II, III Only ORM-D Prohibited 3A
Shaped charges, commercial, see Charges, shaped, commercial, etc.
Signal devices, hand 1.4G UN0191 II Prohibited
Signal devices, hand 1.4S UN0373 II Prohibited
Signals, distress, ship 1.1G UN0194 II Prohibited
Signals, distress, ship 1.3G UN0195 II Prohibited
Signals, highway, see Signal devices, hand; Fireworks, type D
Signals, railway track, explosive 1.1G UN0192 II Prohibited
Signals, railway track, explosive 1.3G UN0492 II Prohibited
Signals, railway track, explosive 1.4G UN0493 II Prohibited
Signals, railway track, explosive 1.4S UN0193 II Prohibited
Signals, ship distress, water-activated, see Contrivances, water-activated, etc.
Signals, smoke 1.1G UN0196 II Prohibited
Signals, smoke 1.2G UN0313 II Prohibited
Signals, smoke 1.3G UN0487 II Prohibited
Signals, smoke 1.4G UN0197 II Prohibited
Silane, compressed 2.1 UN2203 n/a Prohibited
Silicofluoric acid, see Fluorosilicic acid
Silicon chloride, see Silicon tetrachloride
Silicon powder, amorphous 4.1 UN1346 III Prohibited
Silicon tetrachloride 8 UN1818 II Only ORM-D 8A 8A
Silicon tetrafluoride, compressed 2.3 UN1859 n/a Prohibited
Silver acetylide (dry) Forbidden Prohibited
Silver arsenite 6.1 UN1683 II Prohibited
Silver azide (dry) Forbidden Prohibited
Silver chlorite (dry) Forbidden Prohibited
Silver cyanide 6.1 UN1684 II Prohibited
Silver fulminate (dry) Forbidden Prohibited
Silver nitrate 5.1 UN1493 II Only ORM-D 5A 5A
Silver oxalate (dry) Forbidden Prohibited
Silver picrate (dry) Forbidden Prohibited
Silver picrate, wetted with not less than 30 percent water, by mass 4.1 UN1347 I Prohibited
Sludge, acid 8 UN1906 II Prohibited
Smokeless powder for small arms (100 pounds or less) 4.1 NA3178 I Prohibited
Soda lime with more than 4 percent sodium hydroxide 8 UN1907 III Only ORM-D 8A 8A
Sodium 4.3 UN1428 I Prohibited
Sodium aluminate, solid 8 UN2812 III Only ORM-D 8A 8A
Sodium aluminate, solution 8 UN1819 II, III Only ORM-D 8A 8A
Sodium aluminum hydride 4.3 UN2835 II Only ORM-D Prohibited 4A
Sodium ammonium vanadate 6.1 UN2863 II Prohibited
Sodium arsanilate 6.1 UN2473 III Only ORM-D 6A 6A
Sodium arsenate 6.1 UN1685 II Prohibited
Sodium arsenite, aqueous solutions 6.1 UN1686 II Prohibited
Sodium arsenite, aqueous solutions 6.1 UN1686 III Only ORM-D 6A 6A
Sodium arsenite, solid 6.1 UN2027 II Prohibited
Sodium azide 6.1 UN1687 II Prohibited
Sodium bifluoride, see Sodium hydrogendifluoride, etc.
Sodium bisulfite, solution, see Bisulfites, aqueous solutions, n.o.s.
Sodium borohydride 4.3 UN1426 I Prohibited
Sodium borohydride and sodium hydroxide solution, with not more than 12 percent sodium borohydride and not more than 40 percent sodium hydroxide by mass 8 UN3320 II, III Prohibited
Sodium bromate 5.1 UN1494 II Only ORM-D 5A 5A
Sodium cacodylate 6.1 UN1688 II Prohibited
Sodium chlorate 5.1 UN1495 II Only ORM-D 5A 5A
Sodium chlorate, aqueous solution 5.1 UN2428 II, III Only ORM-D 5A 5A
Sodium chlorate mixed with dinitrotoluene, see Explosive, blasting, type C
Sodium chlorite 5.1 UN1496 II Prohibited
Sodium chloroacetate 6.1 UN2659 III Only ORM-D 6A 6A
Sodium cuprocyanide, solid 6.1 UN2316 I Prohibited
Sodium cuprocyanide, solution 6.1 UN2317 I Prohibited
Sodium cyanide 6.1 UN1689 I Prohibited
Sodium dichloroisocyanurate or Sodium dichloro-s-triazinetrione, see Dichloroisocyanuric acid etc.
Sodium dinitro-o-cresolate, dry or wetted with less than 15 percent water, by mass 1.3C UN0234 II Prohibited
Sodium dinitro-o-cresolate, wetted with not less than 15 percent water, by mass 4.1 UN1348 I Prohibited
Sodium dithionite or Sodium hydrosulfite 4.2 UN1384 II Prohibited
Sodium fluoride 6.1 UN1690 III Only ORM-D 6A 6A
Sodium fluoroacetate 6.1 UN2629 I Prohibited
Sodium fluorosilicate 6.1 UN2674 III Only ORM-D 6A 6A
Sodium hydrate, see Sodium hydroxide, solid
Sodium hydride 4.3 UN1427 I Prohibited
Sodium hydrogendifluoride, solid 8 UN2439 II Only ORM-D 8A 8A
Sodium hydrogendifluoride, solution 8 UN2439 II Only ORM-D 8A 8A
Sodium hydrosulfide, solution 8 NA2922 II Only ORM-D 8A 8A
Sodium hydrosulfide, with less than 25 percent water of crystallization 4.2 UN2318 II Prohibited
Sodium hydrosulfide, with not less than 25 percent water of crystallization 8 UN2949 II Prohibited
Sodium hydrosulfite, see Sodium dithionite
Sodium hydroxide, solid 8 UN1823 II Only ORM-D 8A 8A
Sodium hydroxide solution 8 UN1824 II, III Only ORM-D 8A 8A
Sodium hypochlorite, solution, see Hypochlorite solutions
Sodium metal, liquid alloy, see Alkali metal alloys, liquid, n.o.s.
Sodium methylate 4.2 UN1431 II Prohibited
Sodium methylate solutions in alcohol 3 UN1289 II Prohibited
Sodium methylate solutions in alcohol 3 UN1289 III Only ORM-D Prohibited 3A
Sodium monoxide 8 UN1825 II Only ORM-D 8A 8A
Sodium nitrate 5.1 UN1498 III Only ORM-D 5A 5A
Sodium nitrate and potassium nitrate mixtures 5.1 UN1499 III Only ORM-D 5A 5A
Sodium nitrite 5.1 UN1500 III Only ORM-D 5A 5A
Sodium pentachlorophenate 6.1 UN2567 II Prohibited
Sodium perchlorate 5.1 UN1502 II Only ORM-D 5A 5A
Sodium permanganate 5.1 UN1503 II Only ORM-D 5A 5A
Sodium peroxide 5.1 UN1504 I Prohibited
Sodium peroxoborate, anhydrous 5.1 UN3247 II Only ORM-D 5A 5A
Sodium persulfate 5.1 UN1505 III Only ORM-D 5A 5A
Sodium phosphide 4.3 UN1432 I Only ORM-D Prohibited 4A
Sodium picramate, dry or wetted with less than 20 percent water, by mass 1.3C UN0235 II Prohibited
Sodium picramate, wetted with not less than 20 percent water, by mass 4.1 UN1349 I Prohibited
Sodium picryl peroxide Forbidden Prohibited
Sodium potassium alloys, see Potassium sodium alloys
Sodium selenate, see Selenates or Selenites
Sodium selenite 6.1 NA2630 II Prohibited
Sodium sulfide, anhydrous or Sodium sulfide with less than 30 percent water of crystallization 4.2 UN1385 II Prohibited
Sodium sulfide, hydrated with not less than 30 percent water 8 UN1849 II Prohibited
Sodium superoxide 5.1 UN2547 I Prohibited
Sodium tetranitride Forbidden Prohibited
Solids containing corrosive liquid, n.o.s. 8 UN3244 II Only ORM-D 8A 8A
Solids containing flammable liquid, n.o.s. 4.1 UN3175 II Only ORM-D Prohibited 4A
Solids containing toxic liquid, n.o.s. 6.1 UN3243 II Prohibited
Sounding devices, explosive 1.1D UN0374 II Prohibited
Sounding devices, explosive 1.1F UN0296 II Prohibited
Sounding devices, explosive 1.2D UN0375 II Prohibited
Sounding devices, explosive 1.2F UN0204 II Prohibited
Spirits of salt, see Hydrochloric acid
Squibs, see Igniters
Stannic chloride, anhydrous 8 UN1827 II Only ORM-D 8A 8A
Stannic chloride, pentahydrate 8 UN2440 III Only ORM-D 8A 8A
Stannic phosphide 4.3 UN1433 I Prohibited
Steel swarf, see Ferrous metal borings, etc.
Stibine 2.3 UN2676 n/a Prohibited
Storage batteries, wet, see Batteries, wet etc.
Strontium arsenite 6.1 UN1691 II Prohibited
Strontium chlorate 5.1 UN1506 II Only ORM-D 5A 5A
Strontium nitrate 5.1 UN1507 III Only ORM-D 5A 5A
Strontium perchlorate 5.1 UN1508 II Only ORM-D 5A 5A
Strontium peroxide 5.1 UN1509 II Only ORM-D 5A 5A
Strontium phosphide 4.3 UN2013 I Prohibited
Strychnine or Strychnine salts 6.1 UN1692 I Prohibited
Stryphnic acid, see Trinitroresorcinol, etc.
Styrene monomer, inhibited 3 UN2055 III Only ORM-D Prohibited 3A
Substances, explosive, n.o.s. 1.1A UN0473 II Prohibited
Substances, explosive, n.o.s. 1.1C UN0474 II Prohibited
Substances, explosive, n.o.s. 1.1D UN0475 II Prohibited
Substances, explosive, n.o.s. 1.1G UN0476 II Prohibited
Substances, explosive, n.o.s. 1.1L UN0357 II Prohibited
Substances, explosive, n.o.s. 1.2L UN0358 II Prohibited
Substances, explosive, n.o.s. 1.3C UN0477 II Prohibited
Substances, explosive, n.o.s. 1.3G UN0478 II Prohibited
Substances, explosive, n.o.s. 1.3L UN0359 II Prohibited
Substances, explosive, n.o.s. 1.4C UN0479 II Prohibited
Substances, explosive, n.o.s. 1.4D UN0480 II Prohibited
Substances, explosive, n.o.s. 1.4G UN0485 II Prohibited
Substances, explosive, n.o.s. 1.4S UN0481 II Prohibited
Substances, explosive, very insensitive, n.o.s., or Substances, EVI, n.o.s. 1.5D UN0482 II Prohibited
Substituted nitrophenol pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C 3 UN2780 I, II Prohibited
Substituted nitrophenol pesticides, liquid, toxic 6.1 UN3014 I, II Prohibited
Substituted nitrophenol pesticides, liquid, toxic 6.1 UN3014 III Only ORM-D 6A 6A
Substituted nitrophenol pesticides, liquid, toxic flammable flashpoint not less than 23 degrees C 6.1 UN3013 I, II Prohibited
Substituted nitrophenol pesticides, liquid, toxic flammable flashpoint not less than 23 degrees C 6.1 UN3013 III Only ORM-D 6A 6A
Substituted nitrophenol pesticides, solid, toxic 6.1 UN2779 I, II Prohibited
Substituted nitrophenol pesticides, solid, toxic 6.1 UN2779 III Only ORM-D 6A 6A
Sucrose octanitrate (dry) Forbidden Prohibited
Sulfamic acid 8 UN2967 III Only ORM-D 8A 8A
Sulfur 9 NA1350 III Prohibited
Sulfur 4.1 UN1350 III Prohibited
Sulfur and chlorate, loose mixtures of Forbidden Prohibited
Sulfur chlorides 8 UN1828 I Prohibited
Sulfur dichloride, see Sulfur chlorides
Sulfur dioxide 2.3 UN1079 n/a Prohibited
Sulfur dioxide solution, see Sulfurous acid
Sulfur hexafluoride 2.2 UN1080 n/a Only ORM-D
Sulfur, molten 9 NA2448 III Prohibited
Sulfur, molten 4.1 UN2448 III Prohibited
Sulfur tetrafluoride 2.3 UN2418 n/a Prohibited
Sulfur trioxide, inhibited or Sulfur trioxide, stabilized 8 UN1829 I Prohibited
Sulfur trioxide, uninhibited 8 NA1829 I Prohibited
Sulfuretted hydrogen, see Hydrogen sulfide, liquefied
Sulfuric acid with more than 51 percent acid 8 UN1830 II Prohibited
Sulfuric acid with not more than 51 percent acid 8 UN2796 II Only ORM-D and per 348.2 8A 8A
Sulfuric acid, fuming with 30 percent or more free sulfur trioxide 8 UN1831 I Prohibited
Sulfuric acid, fuming with less than 30 percent free sulfur trioxide 8 UN1831 I Prohibited
Sulfuric acid, spent 8 UN1832 II Prohibited
Sulfuric and hydrofluoric acid mixtures, see Hydrofluoric and sulfuric acid mixures
Sulfuric anhydride, see Sulfur trioxide, inhibited
Sulfurous acid 8 UN1833 II Only ORM-D 8A 8A
Sulfuryl chloride 8 UN1834 I Prohibited
Sulfuryl fluoride 2.3 UN2191 n/a Prohibited
- T -
Tars, liquid including road asphalt and oils, bitumen and cut backs 3 UN1999 II, III Only ORM-D Prohibited 3A
Tear gas candles 6.1 UN1700 II Prohibited
Tear gas cartridges, see Ammunition, tear-producing, etc.
Tear gas devices with more than 2 percent tear gas substances, by mass 6.1 NA1693 I, II Prohibited
Tear gas devices with not more than 2 percent tear gas substances, by mass, see Aerosols, etc.
Tear gas grenades, see Tear gas candles
Tear gas substances, liquid, n.o.s. 6.1 UN1693 I, II Prohibited
Tear gas substances, solid, n.o.s. 6.1 UN1693 I, II Prohibited
Tellurium compound, n.o.s. 6.1 UN3284 I, II Prohibited
Tellurium compound, n.o.s. 6.1 UN3284 III Only ORM-D 6A 6A
Tellurium hexafluoride 2.3 UN2195 n/a Prohibited
Terpene hydrocarbons, n.o.s. 3 UN2319 III Only ORM-D Prohibited 3A
Terpinolene 3 UN2541 III Only ORM-D Prohibited 3A
Tetraazido benzene quinone Forbidden Prohibited
Tetrabromoethane 6.1 UN2504 III Only ORM-D 6A 6A
Tetrachloroethane 6.1 UN1702 II Prohibited
Tetrachloroethylene 6.1 UN1897 III Only ORM-D 6A 6A
Tetraethyl dithiopyrophosphate 6.1 UN1704 II Prohibited
Tetraethyl lead, liquid 6.1 NA1649 I Prohibited
Tetraethyl pyrophosphate, liquid 6.1 NA3018 I Prohibited
Tetraethyl pyrophosphate, solid 6.1 NA2783 I Prohibited
Tetraethyl silicate 3 UN1292 III Only ORM-D Prohibited 3A
Tetraethylammonium perchlorate (dry) Forbidden Prohibited
Tetraethylenepentamine 8 UN2320 III Only ORM-D 8A 8A
1,1,1,2-Tetrafluoroethane or Refrigerant gas R 134a 2.2 UN3159 n/a Only ORM-D 2B 2B
Tetrafluoroethylene, inhibited 2.1 UN1081 n/a Only ORM-D Prohibited 2A
Tetrafluoromethane, compressed or Refrigerant gas R 14 2.2 UN1982 n/a Prohibited
1,2,3,6-Tetrahydrobenzaldehyde 3 UN2498 III Only ORM-D Prohibited 3A
Tetrahydrofuran 3 UN2056 II Prohibited
Tetrahydrofurfurylamine 3 UN2943 III Only ORM-D Prohibited 3A
Tetrahydrophthalic anhydrides with more than 0.05 percent of maleic anhydride 8 UN2698 III Only ORM-D and per 348.2 8A 8A
1,2,3,6-Tetrahydropyridine 3 UN2410 II Only ORM-D Prohibited 3A
Tetrahydrothiophene 3 UN2412 II Only ORM-D Prohibited 3A
Tetramethylammonium hydroxide 8 UN1835 II Only ORM-D 8A 8A
Tetramethylene diperoxide dicarbamide Forbidden Prohibited
Tetramethylsilane 3 UN2749 I Prohibited
Tetranitro diglycerin Forbidden Prohibited
Tetranitroaniline 1.1D UN0207 II Prohibited
Tetranitromethane 5.1 UN1510 I Prohibited
2,3,4,6-Tetranitrophenol Forbidden Prohibited
2,3,4,6-Tetranitrophenyl methyl nitramine Forbidden Prohibited
2,3,4,6-Tetranitrophenylnitramine Forbidden Prohibited
Tetranitroresorcinol (dry) Forbidden Prohibited
2,3,5,6-Tetranitroso nitrobenzene (dry) Forbidden Prohibited
2,3,5,6-Tetranitroso-1,4-dinitrobenzene Forbidden Prohibited
Tetrapropylorthotitanate 3 UN2413 III Only ORM-D Prohibited 3A
Tetrazene, see Guanyl nitrosaminoguanyltetrazene
Tetrazine (dry) Forbidden Prohibited
Tetrazol-1-acetic acid 1.4C UN0407 II Prohibited
Tetrazolyl azide (dry) Forbidden Prohibited
Tetryl, see Trinitrophenylmethylnitramine
Thallium chlorate 5.1 UN2573 II Prohibited
Thallium compounds, n.o.s. 6.1 UN1707 II Prohibited
Thallium nitrate 6.1 UN2727 II Prohibited
Thallium sulfate, solid 6.1 NA1707 II Prohibited
4-Thiapentanal 6.1 UN2785 III Only ORM-D 6A 6A
Thioacetic acid 3 UN2436 II Only ORM-D Prohibited 3A
Thiocarbamate pesticide, liquid, flammable, toxic, flashpoint less than 23 degrees C 3 UN2772 I, II Prohibited
Thiocarbamate pesticide, liquid, toxic 6.1 UN3006 I, II Prohibited
Thiocarbamate pesticide, liquid, toxic 6.1 UN3006 III Only ORM-D 6A 6A
Thiocarbamate pesticides, liquid, flammable, toxic, flashpoint not less than 23 degrees C 6.1 UN3005 I, II Prohibited
Thiocarbamate pesticides, liquid, flammable, toxic, flashpoint not less than 23 degrees C 6.1 UN3005 III Only ORM-D 6A 6A
Thiocarbamate pesticides, solid, toxic 6.1 UN2771 I, II Prohibited
Thiocarbamate pesticides, solid, toxic 6.1 UN2771 III Only ORM-D 6A 6A
Thiocarbonylchloride, see Thiophosgene
Thiogylcol 6.1 UN2966 II Prohibited
Thioglycolic acid 8 UN1940 II Only ORM-D 8A 8A
Thiolactic acid 6.1 UN2936 II Prohibited
Thionyl chloride 8 UN1836 I Prohibited
Thiophene 3 UN2414 II Only ORM-D Prohibited 3A
Thiophosgene 6.1 UN2474 II Prohibited
Thiophosphoryl chloride 8 UN1837 II Prohibited
Thiourea dioxide 4.2 UN3341 II, III Prohibited
Thorium metal, pyrophoric 7 UN2975 n/a Prohibited
Thorium nitrate, solid 7 UN2976 n/a Prohibited
Tin chloride, fuming, see Stannic chloride, anhydrous
Tin perchloride or Tin tetrachloride, see Stannic chloride, anhydrous
Tinctures, medicinal 3 UN1293 II, III Only ORM-D Prohibited 3A
Tinning flux, see Zinc chloride, etc.
Titanium disulphide 4.2 UN3174 III Prohibited
Titanium hydride 4.1 UN1871 II Prohibited
Titanium powder, dry 4.2 UN2546 I, II, III Prohibited
Titanium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanically produced, particle size less than 53 microns; (b) chemically produced, particle size less than 840 microns 4.1 UN1352 II Prohibited
Titanium sponge granules or Titanium sponge powders 4.1 UN2878 III Prohibited
Titanium sulfate solution 8 NA1760 II Prohibited
Titanium tetrachloride 8 UN1838 II Prohibited
Titanium trichloride mixtures 8 UN2869 II, III Only ORM-D 8A 8A
Titanium trichloride, pryophoric or Titanium trichloride mixtures, pyrophoric 4.2 UN2441 I Prohibited
TNT mixed with aluminum, see Tritonal
TNT, see Trinitrotoluene, etc.
Toluene 3 UN1294 II Only ORM-D Prohibited 3A
Toluene diisocyanate 6.1 UN2078 II Prohibited
Toluene sulfonic acid, see Alkyl sulfonic acids, etc.
Toluidines liquid 6.1 UN1708 II Prohibited
Toluidines solid 6.1 UN1708 II Prohibited
2,4-Toluylenediamine or 2,4-Toluenediamine 6.1 UN1709 III Only ORM-D 6A 6A
Torpedoes with bursting charge 1.1D UN0451 II Prohibited
Torpedoes with bursting charge 1.1E UN0329 II Prohibited
Torpedoes with bursting charge 1.1F UN0330 II Prohibited
Torpedoes, liquid fueled, with inert head 1.3J UN0450 II Prohibited
Torpedoes, liquid fueled, with or without bursting charge 1.1J UN0449 II Prohibited
Toxic liquid, corrosive, inorganic, n.o.s. 6.1 UN3289 I, II Prohibited
Toxic liquid, corrosive, inorganic, n.o.s. Inhalation Hazard, Packing Group I, Zone A 6.1 UN3289 I Prohibited
Toxic liquid, corrosive, inorganic, n.o.s. Inhalation Hazard, Packing Group I, Zone B 6.1 UN3289 I Prohibited
Toxic liquid, inorganic, n.o.s. 6.1 UN3287 I, II Prohibited
Toxic liquid, inorganic, n.o.s. 6.1 UN3287 III Only ORM-D 6A 6A
Toxic liquid, inorganic, n.o.s. Inhalation Hazard, Packing Group I, Zone A 6.1 UN3287 I Prohibited
Toxic liquid, inorganic, n.o.s. Inhalation Hazard, Packing Group I, Zone B 6.1 UN3287 I Prohibited
Toxic liquids, corrosive, organic, n.o.s. 6.1 UN2927 I, II Prohibited
Toxic liquids, corrosive, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone A 6.1 UN2927 I Prohibited
Toxic liquids, corrosive, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone B 6.1 UN2927 I Prohibited
Toxic liquids, flammable, organic, n.o.s. 6.1 UN2929 I, II Prohibited
Toxic liquids, flammable, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone A 6.1 UN2929 I Prohibited
Toxic liquids, flammable, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone B 6.1 UN2929 I Prohibited
Toxic, liquids, organic, n.o.s. 6.1 UN2810 I, II Prohibited
Toxic, liquids, organic, n.o.s. 6.1 UN2810 III Only ORM-D 6A 6A
Toxic, liquids, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone A 6.1 UN2810 I Prohibited
Toxic, liquids, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone B 6.1 UN2810 I Prohibited
Toxic liquids, oxidizing, n.o.s. 6.1 UN3122 I, II Prohibited
Toxic liquids, oxidizing, n.o.s. Inhalation Hazard, Packing Group I, Zone A 6.1 UN3122 I Prohibited
Toxic liquids, oxidizing, n.o.s. Inhalation Hazard, Packing Group I, Zone B 6.1 UN3122 I Prohibited
Toxic liquids, water-reactive, n.o.s. 6.1 UN3123 I, II Prohibited
Toxic liquids, water-reactive, n.o.s. Inhalation Hazard, Packing Group I, Zone A 6.1 UN3123 I Prohibited
Toxic liquids, water-reactive, n.o.s. Inhalation Hazard, Packing Group I, Zone B 6.1 UN3123 I Prohibited
Toxic solid, corrosive, inorganic, n.o.s. 6.1 UN3290 I, II Prohibited
Toxic solid, inorganic, n.o.s. 6.1 UN3288 I, II Prohibited
Toxic solid, inorganic, n.o.s. 6.1 UN3288 III Only ORM-D 6A 6A
Toxic solids, corrosive, organic, n.o.s. 6.1 UN2928 I, II Prohibited
Toxic solids, flammable, organic, n.o.s. 6.1 UN2930 I, II Prohibited
Toxic solids, organic, n.o.s. 6.1 UN2811 I, II Prohibited
Toxic solids, organic, n.o.s 6.1 UN2811 III Only ORM-D 6A 6A
Toxic solids, oxidizing, n.o.s. 6.1 UN3086 I, II Prohibited
Toxic solids, self-heating, n.o.s. 6.1 UN3124 I, II Prohibited
Toxic solids, water-reactive, n.o.s. 6.1 UN3125 I, II Prohibited
Toy caps 1.4S NA0337 II Prohibited
Tracers for ammunition 1.3G UN0212 II Prohibited
Tracers for ammunition 1.4G UN0306 II Prohibited
Tractors, see Vehicles, self-propelled
Tri-(b-nitroxyethyl) ammonium nitrate Forbidden Prohibited
Triallyl borate 6.1 UN2609 III Only ORM-D 6A 6A
Triallylamine 3 UN2610 III Prohibited
Triazine pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C 3 UN2764 I, II Prohibited
Triazine pesticides, liquid, toxic 6.1 UN2998 I, II Prohibited
Triazine pesticides, liquid, toxic 6.1 UN2998 III Only ORM-D 6A 6A
Triazine pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN2997 I, II Prohibited
Triazine pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C 6.1 UN2997 III Only ORM-D 6A 6A
Triazine pesticides, solid, toxic 6.1 UN2763 I, II Prohibited
Triazine pesticides, solid, toxic 6.1 UN2763 III Only ORM-D 6A 6A
Tributylamine 6.1 UN2542 II Prohibited
Tributylphosphane 4.2 UN3254 I Prohibited
mono-(Trichloro) tetra-(monopotassium dichloro)-penta-s-triazinetrione, dry with more than 39 percent available chlorine 5.1 NA2468 II Only ORM-D 5A 5A
Trichloro-s-triazinetrione dry, with more than 39 percent available chlorine, see Trichloroisocyanuric acid, dry
Trichloroacetic acid 8 UN1839 II Only ORM-D 8A 8A
Trichloroacetic acid, solution 8 UN2564 II, III Only ORM-D 8A 8A
Trichloroacetyl chloride 8 UN2442 II Prohibited
Trichlorbenzenes, liquid 6.1 UN2321 III Only ORM-D 6A 6A
Trichlorobutene 6.1 UN2322 II Prohibited
1,1,1-Trichloroethane 6.1 UN2831 III Only ORM-D 6A 6A
Trichloroethylene 6.1 UN1710 III Only ORM-D 6A 6A
Trichloroisocyanuric acid, dry 5.1 UN2468 II Only ORM-D 5A 5A
Trichloromethyl perchlorate Forbidden Prohibited
Trichlorosilane 4.3 UN1295 I Prohibited
Tricresyl phosphate with more than 3 percent ortho isomer 6.1 UN2574 II Prohibited
Triethyl phosphite 3 UN2323 III Only ORM-D Prohibited 3A
Triethylamine 3 UN1296 II Prohibited
Triethylenetetramine 8 UN2259 II Only ORM-D 8A 8A
Trifluoroacetic acid 8 UN2699 I Prohibited
Trifluoroacetyl chloride 2.3 UN3057 n/a Prohibited
Trifluorochloroethylene, inhibited 2.3 UN1082 n/a Prohibited
1,1,1-Trifluoroethane, compressed or Refrigerant gas R 143a 2.1 UN2035 n/a Only ORM-D Prohibited 2A
Trifluoromethane or Refrigerant gas R 23 2.2 UN1984 n/a Only ORM-D 2B 2B
Trifluoromethane, refrigerated liquid 2.2 UN3136 n/a Only ORM-D 2B 2B
2-Trifluoromethylaniline 6.1 UN2942 III Only ORM-D 6A 6A
3-Trifluoromethylaniline 6.1 UN2948 II Prohibited
Triformoxime trinitrate Forbidden Prohibited
Triisobutylene 3 UN2324 III Only ORM-D Prohibited 3A
Triisopropyl borate 3 UN2616 II, III Only ORM-D Prohibited 3A
Trimethoxysilane 6.1 NA9269 I Prohibited
Trimethyl borate 3 UN2416 II Only ORM-D Prohibited 3A
Trimethyl phosphite 3 UN2329 III Only ORM-D Prohibited 3A
1,3,5-Trimethyl-2,4,6-trinitrobenzene Forbidden Prohibited
Trimethylacetyl chloride 6.1 UN2438 I Prohibited
Trimethylamine, anhydrous 2.1 UN1083 n/a Only ORM-D Prohibited 2A
Trimethylamine, aqueous solutions with not more than 50 percent trimethylamine by mass 3 UN1297 I, II Prohibited
Trimethylamine, aqueous solutions with not more than 50 percent trimethylamine by mass 3 UN1297 III Only ORM-D Prohibited 3A
1,3,5-Trimethylbenzene 3 UN2325 III Prohibited
Trimethylchlorosilane 3 UN1298 II Prohibited
Trimethylcyclohexylamine 8 UN2326 III Only ORM-D 8A 8A
Trimethylene glycol diperchlorate Forbidden Prohibited
Trimethylhexamethylene diisocyanate 6.1 UN2328 III Only ORM-D 6A 6A
Trimethylhexamethylenediamines 8 UN2327 III Only ORM-D 8A 8A
Trimethylol nitromethane trinitrate Forbidden Prohibited
2,4,6-Trinitro-1,3,5-triazido benzene (dry) Forbidden Prohibited
2,4,6-Trinitro-1,3-diazobenzene Forbidden Prohibited
Trinitro-meta-cresol 1.1D UN0216 II Prohibited
Trinitroacetic acid Forbidden Prohibited
Trinitroacetonitrile Forbidden Prohibited
Trinitroamine cobalt Forbidden Prohibited
Trinitroaniline or Picramide 1.1D UN0153 II Prohibited
Trinitroanisole 1.1D UN0213 II Prohibited
Trinitrobenzene, dry or wetted with less than 30 percent water, by mass 1.1D UN0214 II Prohibited
Trinitrobenzene, wetted with not less than 30 percent water, by mass 4.1 UN1354 I Prohibited
Trinitrobenzenesulfonic acid 1.1D UN0386 II Prohibited
Trinitrobenzoic acid, dry or wetted with less than 30 percent water, by mass 1.1D UN0215 II Prohibited
Trinitrobenzoic acid, wetted with not less than 30 percent water, by mass 4.1 UN1355 I Prohibited
Trinitrochlorobenzene or Picryl chloride 1.1D UN0155 II Prohibited
Trinitroethanol Forbidden Prohibited
Trinitroethylnitrate Forbidden Prohibited
Trinitrofluorenone 1.1D UN0387 II Prohibited
Trinitromethane Forbidden Prohibited
Trinitronaphthalene 1.1D UN0217 II Prohibited
1,3,5-Trinitronaphthalene Forbidden Prohibited
Trinitrophenetole 1.1D UN0218 II Prohibited
Trinitrophenol or Picric acid, dry or wetted with less than 30 percent water, by mass 1.1D UN0154 II Prohibited
Trinitrophenol, wetted with not less than 30 percent water, by mass 4.1 UN1344 I Prohibited
2,4,6-Trinitrophenyl guanidine (dry) Forbidden Prohibited
2,4,6-Trinitrophenyl nitramine Forbidden Prohibited
2,4,6-Trinitrophenyl trimethylol methyl nitramine trinitrate (dry) Forbidden Prohibited
Trinitrophenylmethylnitramine or Tetryl 1.1D UN0208 II Prohibited
Trinitroresorcinol or Styphnic acid, dry or wetted with less than 20 percent water, or mixture of alcohol and water, by mass 1.1D UN0219 II Prohibited
Trinitroresorcinol, wetted or Styphnic acid, wetted with not less than 20 percent water, or mixture of alcohol and water, by mass 1.1D UN0394 II Prohibited
2,4,6-Trinitroso-3-methyl nitraminoanisole Forbidden Prohibited
Trinitrotetramine cobalt nitrate Forbidden Prohibited
Trinitrotoluene or TNT, dry or wetted with less than 30 percent water, by mass 1.1D UN0209 II Prohibited
Trinitrotoluene and Trinitrobenzene mixtures or TNT and trinitrobenzene mixtures or TNT and hexanitrostilbene mixtures or Trinitrotoluene and hexanitrostilbene mixtures 1.1D UN0388 II Prohibited
Trinitrotoluene mixtures containing Trinitrobenzene and Hexanitrostilbene or TNT mixtures containing trinitrobenzene and hexanitrostilbene 1.1D UN0389 II Prohibited
Trinitrotoluene wetted with not less than 30 percent water, by mass 4.1 UN1356 I Prohibited
Tripropylamine 3 UN2260 III Only ORM-D Prohibited 3A
Tripropylene 3 UN2057 II, III Only ORM-D Prohibited 3A
Tris, bis-bifluoroamino diethoxy propane (TVOPA) Forbidden Prohibited
Tris-(1-aziridinyl)phosphine oxide, solution 6.1 UN2501 II Prohibited
Tris-(1-aziridinyl)phosphine oxide, solution 6.1 UN2501 III Only ORM-D 6A 6A
Tritonal 1.1D UN0390 II Prohibited
Tungsten hexafluoride 2.3 UN2196 n/a Prohibited
Turpentine 3 UN1299 III Only ORM-D Prohibited 3A
Turpentine substitute 3 UN1300 I Prohibited
Turpentine substitute 3 UN1300 II, III Only ORM-D Prohibited 3A
- U -
Undecane 3 UN2330 III Only ORM-D Prohibited 3A
Uranium hexafluoride, fissile excepted or non-fissile 7 UN2978 n/a Only in quantities per 347.22 Prohibited 7A
Uranium hexafluoride, fissile with more than 1 percent U-235 7 UN2977 n/a Only in quantities per 347.22 Prohibited 7A
Uranium metal, pyrophoric 7 UN2979 n/a Prohibited
Uranyl nitrate hexahydrate solution 7 UN2980 n/a Only in quantities per 347.22 Prohibited 7A
Uranyl nitrate, solid 7 UN2981 n/a Prohibited
Urea hydrogen peroxide 5.1 UN1511 III Only ORM-D 5A 5A
Urea nitrate, dry or wetted with less than 20 percent water, by mass 1.1D UN0220 II Prohibited
Urea nitrate, wetted with not less than 20 percent water, by mass 4.1 UN1357 I Prohibited
Urea peroxide, see Urea hydrogen peroxide
- V -
Valeraldehyde 3 UN2058 II Only ORM-D Prohibited 3A
Valeric acid, see Corrosive liquids, n.o.s.
Valeryl chloride 8 UN2502 II Only ORM-D 8A 8A
Vanadium compound, n.o.s. 6.1 UN3285 I, II Prohibited
Vanadium compound, n.o.s. 6.1 UN3285 III Only ORM-D 6A 6A
Vanadium oxytrichloride 8 UN2443 II Only ORM-D 8A 8A
Vanadium pentoxide, nonfused form 6.1 UN2862 III Only ORM-D 6A 6A
Vanadium tetrachloride 8 UN2444 I Prohibited
Vanadium trichloride 8 UN2475 III Only ORM-D 8A 8A
Vanadyl sulfate 6.1 UN2931 II Prohibited
Vehicle, flammable gas powered 9 UN3166 n/a Prohibited
Vehicle, flammable liquid powered 9 UN3166 n/a Prohibited
Very signal cartridge, see Cartridges, signal
Vinyl acetate, inhibited 3 UN1301 II Only ORM-D Prohibited 3A
Vinyl bromide, inhibited 2.1 UN1085 n/a Only ORM-D Prohibited 2A
Vinyl butyrate, inhibited 3 UN2838 II Only ORM-D Prohibited 3A
Vinyl chloride, inhibited or Vinyl chloride, stabilized 2.1 UN1086 n/a Only ORM-D Prohibited 2A
Vinyl chloroacetate 6.1 UN2589 II Prohibited
Vinyl ethyl ether, inhibited 3 UN1302 I Prohibited
Vinyl fluoride, inhibited 2.1 UN1860 n/a Only ORM-D Prohibited 2A
Vinyl isobutyl ether, inhibited 3 UN1304 II Only ORM-D Prohibited 3A
Vinyl methyl ether, inhibited 2.1 UN1087 n/a Only ORM-D Prohibited 2A
Vinyl nitrate polymer Forbidden Prohibited
Vinylidene chloride, inhibited 3 UN1303 I Only ORM-D Prohibited 3A
Vinylpyridines, inhibited 6.1 UN3073 II Prohibited
Vinyltoluenes, inhibited 3 UN2618 III Only ORM-D Prohibited 3A
Vinyltrichlorosilane, inhibited 3 UN1305 I Prohibited
- W -
Warheads, rocket with burster or expelling charge 1.4D UN0370 II Prohibited
Warheads, rocket with burster or expelling charge 1.4F UN0371 II Prohibited
Warheads, rocket with bursting charge 1.1D UN0286 II Prohibited
Warheads, rocket with bursting charge 1.1F UN0369 II Prohibited
Warheads, rocket with bursting charge 1.2D UN0287 II Prohibited
Warheads, torpedo with bursting charge 1.1D UN0221 II Prohibited
Water-reactive liquid, corrosive, n.o.s. 4.3 UN3129 I Prohibited
Water-reactive liquid, corrosive, n.o.s. 4.3 UN3129 II, III Only ORM-D Prohibited 4A
Water-reactive liquid, n.o.s. 4.3 UN3148 I, II, III Prohibited
Water-reactive liquid, toxic, n.o.s. 4.3 UN3130 I, II, III Prohibited
Water-reactive solid, corrosive, n.o.s. 4.3 UN3131 I Prohibited
Water-reactive solid, corrosive, n.o.s. 4.3 UN3131 II, III Only ORM-D Prohibited 4A
Water-reactive solid, flammable, n.o.s. 4.3 UN3132 I Prohibited
Water-reactive solid, flammable, n.o.s. 4.3 UN3132 II, III Only ORM-D Prohibited 4A
Water-reactive solid, n.o.s. 4.3 UN2813 I Prohibited
Water-reactive solid, n.o.s. 4.3 UN2813 II, III Only ORM-D Prohibited 4A
Water-reactive solid, oxidixing, n.o.s. 4.3 UN3133 II, III Prohibited
Water-reactive solid, self-heating, n.o.s. 4.3 UN3135 I, II, III Prohibited
Water-reactive solid, toxic, n.o.s. 4.3 UN3134 I Prohibited
Water-reactive solid, toxic, n.o.s. 4.3 UN3134 II, III Only ORM-D Prohibited 4A
Wheel chair, electric, see Battery powered vehicle or Battery powered equipment
White acid, see Hydroflouric acid mixtures etc.
White asbestos (chrysotile, actinolite, anthophyllite, tremolite) 9 UN2590 III Only ORM-D 9C 9C
Wood preservatives, liquid 3 UN1306 II, III Only ORM-D Prohibited 3A
- X Y Z -
Xanthates 4.2 UN3342 II, III Prohibited
Xenon, compressed 2.2 UN2036 n/a Only ORM-D 2B 2B
Xenon, refrigerated liquid (cryogenic liquids) 2.2 UN2591 n/a Prohibited
Xylenes 3 UN1307 II, III Prohibited
Xylenols 6.1 UN2261 II Prohibited
Xylidines, solid 6.1 UN1711 II Prohibited
Xylidines, solution 6.1 UN1711 II Prohibited
Xylyl bromide 6.1 UN1701 II Prohibited
p-Xylyl diazide Forbidden Prohibited
Zinc ammonium nitrite 5.1 UN1512 II Prohibited
Zinc arsenate or Zinc arsenite or Zinc arsenate and zinc arsenite mixtures 6.1 UN1712 II Prohibited
Zinc ashes 4.3 UN1435 III Only ORM-D Prohibited 4A
Zinc bisulfite solution, see Bisulfites, inorganic aqueous solutions, n.o.s.
Zinc bromate 5.1 UN2469 III Only ORM-D 5A 5A
Zinc chlorate 5.1 UN1513 II Only ORM-D 5A 5A
Zinc chloride, anhydrous 8 UN2331 III Prohibited
Zinc chloride, solution 8 UN1840 III Only ORM-D 8A 8A
Zinc cyanide 6.1 UN1713 I Prohibited
Zinc dithionite or Zinc hydrosulfite 9 UN1931 III Only ORM-D 9C 9C
Zinc ethyl, see Diethylzinc
Zinc fluorosilicate 6.1 UN2855 III Only ORM-D 6A 6A
Zinc hydrosulfite, see Zinc dithionite
Zinc muriate solution, see Zinc chloride, solution
Zinc nitrate 5.1 UN1514 II Only ORM-D 5A 5A
Zinc permanganate 5.1 UN1515 II Only ORM-D 5A 5A
Zinc peroxide 5.1 UN1516 II Only ORM-D 5A 5A
Zinc phosphide 4.3 UN1714 I Prohibited
Zinc powder or Zinc dust 4.3 UN1436 I, II, III Prohibited
Zinc resinate 4.1 UN2714 III Only ORM-D Prohibited 4A
Zinc selenate, see Selenates or Selenites
Zinc selenite, see Selenates or Selenites
Zinc silicofluoride, see Zinc fluorosilicate
Zirconium, dry, coiled wire, finished metal sheets, strip (thinner than 254 microns but not thinner than 18 microns) 4.1 UN2858 III Only ORM-D Prohibited 4A
Zirconium, dry, finished sheets, strip or coiled wire 4.2 UN2009 III Prohibited
Zirconium hydride 4.1 UN1437 II Prohibited
Zirconium nitrate 5.1 UN2728 III Only ORM-D 5A 5A
Zirconium picramate, dry or wetted less than 20 percent water, by mass 1.3C UN0236 II Prohibited
Zirconium picramate, wetted with not less than 20 percent water, by mas 4.1 UN1517 I Prohibited
Zirconium powder, dry 4.2 UN2008 I, II, III Prohibited
Zirconium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanically produced, particle size less than 53 microns; (b) chemically produced, particle size less than 840 microns 4.1 UN1358 II Prohibited
Zirconium scrap 4.2 UN1932 III Prohibited
Zirconium sulfate 8 NA9163 III Prohibited
Zirconium suspended in a liquid 3 UN1308 I, II Prohibited
Zirconium suspended in a liquid 3 UN1308 III Only ORM-D Prohibited 3A
Zirconium tetrachloride 8 UN2503 III Only ORM-D 8A 8A

Appendix B
Numerical Listing of Proper Shipping Names by Identification (ID) Number
This appendix contains a numerical list of the United Nations (UN) and North American (NA) identification (ID) numbers for proper shipping names of the hazardous materials listed alphabetically in Appendix A. The text appearing in italic type is not part of the proper shipping name of the hazardous material and is used for descriptive or references purposes only. This numerical list can be used to determine the proper shipping name of a hazardous material when the UN or NA number is known. Once the proper shipping name is known, it can be referenced back to Appendix A to determine the mailability of the hazardous material.

ID
Number Proper Shipping Name
(in roman type)
UN0004 Ammonium picrate, dry or wetted with less than 10 percent water, by mass
UN0005 Cartridges for weapons, with bursting charge
UN0006 Cartridges for weapons, with bursting charge
UN0007 Cartridges for weapons, with bursting charge
UN0009 Ammunition, incendiary with or without burster, expelling charge, or propelling charge
UN0010 Ammunition, incendiary with or without burster, expelling charge, or propelling charge
UN0012 Cartridges for weapons, inert projectile or Cartridges, small arms
UN0014 Cartridges for weapons, blank or Cartridges, small arms, blank
UN0015 Ammunition, smoke, with or without burster, expelling charge, or propelling charge
UN0016 Ammunition, smoke, with or without burster, expelling charge, or propelling charge
UN0018 Ammunition, tear-producing with burster, expelling charge, or propelling charge
UN0019 Ammunition, tear-producing with burster, expelling charge, or propelling charge
UN0020 Ammunition, toxic with burster, expelling charge, or propelling charge
UN0021 Ammunition, toxic with burster, expelling charge, or propelling charge
NA0027 Black powder for small arms
UN0027 Black powder or Gunpowder, granular or as a meal
UN0028 Black powder, compressed or Gunpowder, compressed or Black powder, in pellets or Gunpowder, in pellets
UN0029 Detonators, non-electric, for blasting
UN0030 Detonators, electric, for blasting
UN0033 Bombs, with bursting charge
UN0034 Bombs, with bursting charge
UN0035 Bombs, with bursting charge
UN0037 Bombs, photo-flash
UN0038 Bombs, photo-flash
UN0039 Bombs, photo-flash
UN0042 Boosters, without detonator
UN0043 Bursters, explosive
UN0044 Primers, cap type
UN0048 Charges, demolition
UN0049 Cartridges, flash
UN0050 Cartridges, flash
UN0054 Cartridges, signal
UN0055 Cases, cartridge, empty with primer
UN0056 Charges, depth
UN0059 Charges, shaped, without detonator
UN0060 Charges, supplementary explosive
UN0065 Cord, detonating, flexible
UN0066 Cord, igniter
UN0070 Cutters, cable, explosive
UN0072 Cyclotrimethylenetrinitramine, wetted or Cyclonite, wetted or Hexogen, wetted or RDX, wetted with not less than 15 percent water by mass
UN0073 Detonators for ammunition
UN0074 Diazodinitrophenol, wetted with not less than 40 percent water or mixture of alcohol and water, by mass
UN0075 Diethyleneglycol dinitrate, desensitized with not less than 25 percent non-volatile water-insoluble phlegmatizer, by mass
UN0076 Dinitrophenol, dry or wetted with less than 15 percent water, by mass
UN0077 Dinitrophenolates alkali metals, dry or wetted with less than 15 percent water, by mass
UN0078 Dinitroresorcinol, dry or wetted with less than 15 percent water, by mass
UN0079 Hexanitrodiphenylamine or Dipicrylamine or Hexyl
UN0081 Explosive, blasting, type A
UN0082 Explosive, blasting, type B
UN0083 Explosive, blasting, type C
UN0084 Explosive, blasting, type D
UN0092 Flares, surface
UN0093 Flares, aerial
UN0094 Flash powder
UN0099 Fracturing devices, explosives, without detonators for oil wells
UN0101 Fuse, non-detonating (instantaneous or quickmatch)
UN0102 Cord detonating or Fuse detonating metal clad
UN0103 Fuse, igniter tubular metal clad
UN0104 Cord, detonating, mild effect or Fuse, detonating, mild effect metal clad
UN0105 Fuse, safety
UN0106 Fuzes, detonating
UN0107 Fuzes, detonating
UN0110 Grenades, practice, hand or rifle
UN0113 Guanyl nitrosaminoguanylidene hydrazine, wetted with not less than 30 percent water, by mass
UN0114 Guanyl nitrosaminoguanyltetrazene, wetted or Tetrazene, wetted with not less than 30 percent water or mixture of alcohol and water, by mass
UN0118 Hexolite, or Hexotol dry or wetted with less than 15 percent water, by mass
UN0121 Igniters
NA0124 Jet, perforating guns, charged oil well, with detonator
UN0124 Jet, perforating guns, charged oil well, without detonator
UN0129 Lead azide, wetted with not less than 20 percent water or mixture of alcohol and water, by mass
UN0130 Lead styphnate, wetted or Lead trinitroresorcinate, wetted with not less than 20 percent water or mixture of alcohol and water, by mass
UN0131 Lighters, fuse
UN0132 Deflagrating metal salts of aromatic nitroderivatives, n.o.s.
UN0133 Mannitol hexanitrate, wetted or Nitromannite, wetted with not less than 40 percent water, or mixture of alcohol and water, by mass
UN0135 Mercury fulminate, wetted with not less than 20 percent water, or mixture of alcohol and water, by mass
UN0136 Mines with bursting charge
UN0137 Mines with bursting charge
UN0138 Mines with bursting charge
UN0143 Nitroglycerin, desensitized with not less than 40 percent non-volatile water insoluble phlegmatizer, by mass
UN0144 Nitroglycerin, solution in alcohol, with more than 1 percent but not more than 10 percent nitroglycerin
UN0146 Nitrostarch, dry or wetted with less than 20 percent water, by mass
UN0147 Nitro urea
UN0150 Pentaerythrite tetranitrate, wetted or Pentaerythritol tetranitrate, wetted or PETN, wetted with not less than 25 percent water, by mass, or Pentaerythrite tetranitrate, or Pentaerythritol tetranitrate, or PETN, desensitized with not less than 15 percent
UN0151 Pentolite, dry or wetted with less than 15 percent water, by mass
UN0153 Trinitroaniline or Picramide
UN0154 Trinitrophenol or Picric acid, dry or wetted with less than 30 percent water, by mass
UN0155 Trinitrochlorobenzene or Picryl chloride
UN0159 Powder cake, wetted or Powder paste, wetted with not less than 25 percent water, by mass
UN0160 Powder, smokeless
UN0161 Powder, smokeless
UN0167 Projectiles, with bursting charge
UN0168 Projectiles, with bursting charge
UN0169 Projectiles, with bursting charge
UN0171 Ammunition, illuminating with or without burster, expelling charge, or propelling charge
UN0173 Release devices, explosive
UN0174 Rivets, explosive
UN0180 Rockets, with bursting charge
UN0181 Rockets, with bursting charge
UN0182 Rockets, with bursting charge
UN0183 Rockets, with inert head
UN0186 Rocket motors
UN0190 Samples, explosive, other than initiating explosives
UN0191 Signal devices, hand
UN0192 Signals, railway track, explosive
UN0193 Signals, railway track, explosive
UN0194 Signals, distress, ship
UN0195 Signals, distress, ship
UN0196 Signals, smoke
UN0197 Signals, smoke
UN0204 Sounding devices, explosive
UN0207 Tetranitroaniline
UN0208 Trinitrophenylmethylnitramine or Tetryl
UN0209 Trinitrotoluene or TNT, dry or wetted with less than 30 percent water, by mass
UN0212 Tracers for ammunition
UN0213 Trinitroanisole
UN0214 Trinitrobenzene, dry or wetted with less than 30 percent water, by mass
UN0215 Trinitrobenzoic acid, dry or wetted with less than 30 percent water, by mass
UN0216 Trinitro-meta-cresol
UN0217 Trinitronaphthalene
UN0218 Trinitrophenetole
UN0219 Trinitroresorcinol or Styphnic acid, dry or wetted with less than 20 percent water, or mixture of alcohol and water, by mass
UN0220 Urea nitrate, dry or wetted with less than 20 percent water, by mass
UN0221 Warheads, torpedo with bursting charge
UN0222 Ammonium nitrate, with more than 0.2 percent combustible substances, including any organic substance calculated as carbon, to the exclusion of any other added substance
UN0224 Barium azide, dry or wetted with less than 50 percent water, by mass
UN0225 Boosters with detonator
UN0226 Cyclotetramethylenetetranitramine, wetted or HMX, wetted or Octogen, wetted with not less than 15 percent water, by mass
UN0234 Sodium dinitro-o-cresolate, dry or wetted with less than 15 percent water, by mass
UN0235 Sodium picramate, dry or wetted with less than 20 percent water, by mass
UN0236 Zirconium picramate, dry or wetted less than 20 percent water, by mass
UN0237 Charges, shaped, flexible, linear
UN0238 Rockets, line-throwing
UN0240 Rockets, line-throwing
UN0241 Explosive, blasting, type E
UN0242 Charges, propelling, for cannon
UN0243 Ammunition, incendiary, white phosphorus, with burster, expelling charge, or propelling charge
UN0244 Ammunition, incendiary, white phosphorus, with burster, expelling charge, or propelling charge
UN0245 Ammunition smoke, white phosphorus with burster, expelling charge, or propelling charge
UN0246 Ammunition, smoke, white phosphorus with burster, expelling charge, or propelling charge
UN0247 Ammunition, incendiary liquid or gel, with burster, expelling charge, or propelling charge
UN0248 Contrivances, water-activated, with burster, expelling charge, or propelling charge
UN0249 Contrivances, water-activated, with burster, expelling charge, or propelling charge
UN0250 Rocket motors with hypergolic liquids with or without an expelling charge
UN0254 Ammunition, illuminating with or without burster, expelling charge, or propelling charge
UN0255 Detonators, electric, for blasting
UN0257 Fuzes, detonating
UN0266 Octolite or Octol, dry or wetted with less than 15 percent water, by mass
UN0267 Detonators, non-electric, for blasting
UN0268 Boosters with detonator
UN0271 Charges, propelling
UN0272 Charges, propelling
UN0275 Cartridges, power device
NA0276 Model rocket motor
UN0276 Cartridges, power device
UN0277 Cartridges, oil well
UN0278 Cartridges, oil well
UN0279 Charges, propelling, for cannon
UN0280 Rocket motors
UN0281 Rocket motors
UN0282 Nitroguanidine or Picrite, dry or wetted with less than 20 percent water, by mass
UN0283 Boosters, without detonator
UN0284 Grenades, hand or rifle, with bursting charge
UN0285 Grenades, hand or rifle, with bursting charge
UN0286 Warheads, rocket with bursting charge
UN0287 Warheads, rocket with bursting charge
UN0288 Charges, shaped, flexible, linear
UN0289 Cord, detonating, flexible
UN0290 Cord, detonating or Fuse, detonating metal clad
UN0291 Bombs, with bursting charge
UN0292 Grenades, hand or rifle, with bursting charge
UN0293 Grenades, hand or rifle, with bursting charge
UN0294 Mines with bursting charge
UN0295 Rockets, with bursting charge
UN0296 Sounding devices, explosive
UN0297 Ammunition, illuminating with or without burster, expelling charge, or propelling charge
UN0299 Bombs, photo-flash
UN0300 Ammunition, incendiary with or without burster, expelling charge, or propelling charge
UN0301 Ammunition, tear-producing with burster, expelling charge, or propelling charge
UN0303 Ammunition, smoke, with or without burster, expelling charge, or propelling charge
UN0305 Flash powder
UN0306 Tracers for ammunition
UN0312 Cartridges, signal
UN0313 Signals, smoke
UN0314 Igniters
UN0315 Igniters
UN0316 Fuzes, igniting
UN0317 Fuzes, igniting
UN0318 Grenades, practice, hand or rifle
UN0319 Primers, tubular
UN0320 Primers, tubular
UN0321 Cartridges for weapons, with bursting charge
UN0322 Rocket motors with hypergolic liquids with or without an expelling charge
NA0323 Model rocket motor
UN0323 Cartridges, power device
UN0324 Projectiles, with bursting charge
UN0325 Igniters
UN0326 Cartridges for weapons, blank
UN0327 Cartridges for weapons, blank or Cartridges, small arms, blank
UN0328 Cartridges for weapons, inert projectile
UN0329 Torpedoes with bursting charge
UN0330 Torpedoes with bursting charge
NA0331 Ammonium nitrate-fuel oil mixture containing only prilled ammonium nitrate and fuel oil
UN0331 Explosive, blasting, type B or Agent blasting, Type B
UN0332 Explosive, blasting, type E or Agent blasting, Type E
UN0333 Fireworks
UN0334 Fireworks
UN0335 Fireworks
UN0336 Fireworks
NA0337 Toy caps
UN0337 Fireworks
UN0338 Cartridges for weapons, blank or Cartridges, small arms, blank
UN0339 Cartridges for weapons, inert projectile or Cartridges, small arms
UN0340 Nitrocellulose, dry or wetted with less than 25 percent water (or alcohol), by mass
UN0341 Nitrocellulose, unmodified or plasticized with less than 18 percent plasticizing substance, by mass
UN0342 Nitrocellulose, wetted with not less than 25 percent alcohol, by mass
UN0343 Nitrocellulose, plasticized with not less than 18 percent plasticizing substance, by mass
UN0344 Projectiles, with bursting charge
UN0345 Projectiles, inert with tracer
UN0346 Projectiles, with burster or expelling charge
UN0347 Projectiles, with burster or expelling charge
UN0348 Cartridges for weapons, with bursting charge
NA0349 Grenades, empty primed
UN0349 Articles, explosive, n.o.s.
UN0350 Articles, explosive, n.o.s.
UN0351 Articles, explosive, n.o.s.
UN0352 Articles, explosive, n.o.s.
UN0353 Articles, explosive, n.o.s.
UN0354 Articles, explosive, n.o.s.
UN0355 Articles, explosive, n.o.s.
UN0356 Articles, explosive, n.o.s.
UN0357 Substances, explosive, n.o.s.
UN0358 Substances, explosive, n.o.s.
UN0359 Substances, explosive, n.o.s.
UN0360 Detonator assemblies, non-electric for blasting
UN0361 Detonator assemblies, non-electric for blasting
UN0362 Ammunition, practice
UN0363 Ammunition, proof
UN0364 Detonators for ammunition
UN0365 Detonators for ammunition
UN0366 Detonators for ammunition
UN0367 Fuzes, detonating
UN0368 Fuzes, igniting
UN0369 Warheads, rocket with bursting charge
UN0370 Warheads, rocket with burster or expelling charge
UN0371 Warheads, rocket with burster or expelling charge
UN0372 Grenades, practice, hand or rifle
UN0373 Signal devices, hand
UN0374 Sounding devices, explosive
UN0375 Sounding devices, explosive
UN0376 Primers, tubular
UN0377 Primers, cap type
UN0378 Primers, cap type
UN0379 Cases, cartridges, empty with primer
UN0380 Articles, pyrophoric
UN0381 Cartridges, power device
UN0382 Components, explosive train, n.o.s.
UN0383 Components, explosive train, n.o.s.
UN0384 Components, explosive train, n.o.s.
UN0385 5-Nitrobenzotriazol
UN0386 Trinitrobenzenesulfonic acid
UN0387 Trinitrofluorenone
UN0388 Trinitrotoluene and Trinitrobenzene mixtures or TNT and trinitrobenzene mixtures or TNT and hexanitrostilbene mixtures or Trinitrotoluene and hexanitrostilbene mixtures
UN0389 Trinitrotoluene mixtures containing Trinitrobenzene and Hexanitrostilbene or TNT mixtures containing trinitrobenzene and hexanitrostilbene
UN0390 Tritonal
UN0391 RDX and HMX mixtures, wetted with not less than 15 percent water by mass or RDX and HMX mixtures, desensitized with not less than 10 percent phlegmatizer by mass
UN0392 Hexanitrostilbene
UN0393 Hexotonal
UN0394 Trinitroresorcinol, wetted or Styphnic acid, wetted with not less than 20 percent water, or mixture of alcohol and water, by mass
UN0395 Rocket motors, liquid fueled
UN0396 Rocket motors, liquid fueled
UN0397 Rockets, liquid fueled with bursting charge
UN0398 Rockets, liquid fueled with bursting charge
UN0399 Bombs with flammable liquid, with bursting charge
UN0400 Bombs with flammable liquid, with bursting charge
UN0401 Dipicryl sulfide, dry or wetted with less than 10 percent water, by mass
UN0402 Ammonium perchlorate
UN0403 Flares, aerial
UN0404 Flares, aerial
UN0405 Cartridges, signal
UN0406 Dinitrosobenzene
UN0407 Tetrazol-1-acetic acid
UN0408 Fuzes, detonating, with protective features
UN0409 Fuzes, detonating, with protective features
UN0410 Fuzes, detonating, with protective features
UN0411 Pentaerythrite tetranitrate or Pentaerythritol tetranitrate or PETN, with not less than 7 percent wax by mass
UN0412 Cartridges for weapons, with bursting charge
UN0413 Cartridges for weapons, blank
UN0414 Charges, propelling, for cannon
UN0415 Charges, propelling
UN0417 Cartridges for weapons, inert projectile or Cartridges, small arms
UN0418 Flares, surface
UN0419 Flares, surface
UN0420 Flares, aerial
UN0421 Flares, aerial
UN0424 Projectiles, inert with tracer
UN0425 Projectiles, inert with tracer
UN0426 Projectiles, with burster or expelling charge
UN0427 Projectiles, with burster or expelling charge
UN0428 Articles, pyrotechnic for technical purposes
UN0429 Articles, pyrotechnic for technical purposes
UN0430 Articles, pyrotechnic for technical purposes
UN0431 Articles, pyrotechnic for technical purposes
UN0432 Articles, pyrotechnic for technical purposes
UN0433 Powder cake, wetted or Powder paste, wetted with not less than 17 percent alcohol by mass
UN0434 Projectiles, with burster or expelling charge
UN0435 Projectiles, with burster or expelling charge
UN0436 Rockets, with expelling charge
UN0437 Rockets, with expelling charge
UN0438 Rockets, with expelling charge
UN0439 Charges, shaped, without detonator
UN0440 Charges, shaped, without detonator
UN0441 Charges, shaped, without detonator
UN0442 Charges, explosive, commercial without detonator
UN0443 Charges, explosive, commercial without detonator
UN0444 Charges, explosive, commercial without detonator
UN0445 Charges, explosive, commercial without detonator
UN0446 Cases, combustible, empty, without primer
UN0447 Cases, combustible, empty, without primer
UN0448 5-Mercaptotetrazol-1-acetic acid
UN0449 Torpedoes, liquid fueled, with or without bursting charge
UN0450 Torpedoes, liquid fueled, with inert head
UN0451 Torpedoes with bursting charge
UN0452 Grenades, practice, hand or rifle
UN0453 Rockets, line-throwing
UN0454 Igniters
UN0455 Detonators, non-electric, for blasting
UN0456 Detonators, electric, for blasting
UN0457 Charges, bursting, plastics bonded
UN0458 Charges, bursting, plastics bonded
UN0459 Charges, bursting, plastics bonded
UN0460 Charges, bursting, plastics bonded
UN0461 Components, explosive train, n.o.s.
UN0462 Articles, explosive, n.o.s.
UN0463 Articles, explosive, n.o.s.
UN0464 Articles, explosive, n.o.s.
UN0465 Articles, explosive, n.o.s.
UN0466 Articles, explosive, n.o.s.
UN0467 Articles, explosive, n.o.s.
UN0468 Articles, explosive, n.o.s.
UN0469 Articles, explosive, n.o.s.
UN0470 Articles, explosive, n.o.s.
UN0471 Articles, explosive, n.o.s.
UN0472 Articles, explosive, n.o.s.
NA0473 Barium styphnate or Lead mononitroresorcinate
UN0473 Substances, explosive, n.o.s.
UN0474 Substances, explosive, n.o.s.
UN0475 Substances, explosive, n.o.s.
UN0476 Substances, explosive, n.o.s.
UN0477 Substances, explosive, n.o.s.
UN0478 Substances, explosive, n.o.s.
UN0479 Substances, explosive, n.o.s.
UN0480 Substances, explosive, n.o.s.
UN0481 Substances, explosive, n.o.s.
UN0482 Substances, explosive, very insensitive, n.o.s., or Substances, EVI, n.o.s.
UN0483 Cyclotrimethylenetrinitramine, desensitized or Cyclonite, desensitized or Hexogen, desensitized or RDX, desensitized
UN0484 Cyclotetramethylenetetranitramine, desensitized or Octogen, desensitized or HMX, desensitized
UN0485 Substances, explosive, n.o.s.
UN0486 Articles, explosive, extremely insensitive or Articles, EEI
UN0487 Signals, smoke
UN0488 Ammunition, practice
UN0489 Dinitroglycoluril or Dingu
UN0490 Nitrotriazolone or NTO
UN0491 Charges, propelling
UN0492 Signals, railway track, explosive
UN0493 Signals, railway track, explosive
NA0494 Jet, perforating guns, charged oil well, with detonator
UN0494 Jet, perforating guns, charged oil well, without detonator
UN0495 Propellant, liquid
UN0496 Octonal
UN0497 Propellant, liquid
UN0498 Propellant, solid
UN0499 Propellant, solid
UN0500 Detonator assemblies, non-electric for blasting
UN1001 Acetylene, dissolved
UN1002 Air, compressed
UN1003 Air, refrigerated liquid, (cryogenic liquid) or Air, refrigerated liquid (cryogenic liquid) non-pressurized
UN1005 Ammonia, anhydrous
UN1006 Argon, compressed
UN1008 Boron trifluoride, compressed
UN1009 Bromotrifluoromethane or Refrigerant gas, R 13B1
UN1010 Butadienes, inhibited
UN1011 Butane see also Petroleum gases, liquefied
UN1012 Butylene see also Petroleum gases, liquefied
UN1013 Carbon dioxide
UN1014 Carbon dioxide and oxygen mixtures, compressed
UN1015 Carbon dioxide and nitrous oxide mixtures
UN1016 Carbon monoxide, compressed
UN1017 Chlorine
UN1018 Chlorodifluoromethane or Refrigerant gas R 22
UN1020 Chloropentafluoroethane or Refrigerant gas R 115
UN1021 1-Chloro-1,2,2,2-tetrafluoroethane or Refrigerant gas R 124
UN1022 Chlorotrifluoromethane or Refrigerant gas R 13
UN1023 Coal gas, compressed
UN1026 Cyanogen
UN1027 Cyclopropane
UN1028 Dichlorodifluoromethane or Refrigerant gas R 12
UN1029 Dichlorofluoromethane or Refrigerant gas R 21
UN1030 1,1-Difluoroethane or Refrigerant gas R 152a
UN1032 Dimethylamine, anhydrous
UN1033 Dimethyl ether
UN1035 Ethane
UN1036 Ethylamine
UN1037 Ethyl chloride
UN1038 Ethylene, refrigerated liquid (cryogenic liquid)
UN1039 Ethyl methyl ether
UN1040 Ethylene oxide or Ethylene oxide with nitrogen up to a total pressure of 1MPa (10 bar) at 50 degrees C
UN1041 Ethylene oxide and carbon dioxide mixtures with more than 9 percent but not more than 87 percent ethylene oxide
UN1043 Fertilizer ammoniating solution with free ammonia
UN1044 Fire extinguishers containing compressed or liquefied gas
UN1045 Fluorine, compressed
UN1046 Helium, compressed
UN1048 Hydrogen bromide, anhydrous
UN1049 Hydrogen, compressed
UN1050 Hydrogen chloride, anhydrous
UN1051 Hydrogen cyanide, stabilized with less than 3 percent water
UN1052 Hydrogen fluoride, anhydrous
UN1053 Hydrogen sulfide
UN1055 Isobutylene see also Petroleum gases, liquefied
UN1056 Krypton, compressed
UN1057 Lighters or Lighter refills cigarettes, containing flammable gas
UN1058 Liquified gases, nonflammable charged with nitrogen, carbon dioxide, or air
UN1060 Methyl acetylene and propadiene mixtures, stabilized
UN1061 Methylamine, anhydrous
UN1062 Methyl bromide
UN1063 Methyl chloride, or Refrigerant gas R 40
UN1064 Methyl mercaptan
UN1065 Neon, compressed
UN1066 Nitrogen, compressed
UN1067 Dinitrogen tetroxide
UN1069 Nitrosyl chloride
UN1070 Nitrous oxide
UN1071 Oil gas, compressed
UN1072 Oxygen, compressed
UN1073 Oxygen, refrigerated liquid (cryogenic liquid)
UN1075 Petroleum gases, liquefied or Liquefied petroleum gas
UN1076 Phosgene
UN1077 Propylene see also Petroleum gases, liquefied
UN1078 Refrigerant gases, n.o.s.
UN1079 Sulfur dioxide
UN1080 Sulfur hexafluoride
UN1081 Tetrafluoroethylene, inhibited
UN1082 Trifluorochloroethylene, inhibited
UN1083 Trimethylamine, anhydrous
UN1085 Vinyl bromide, inhibited
UN1086 Vinyl chloride, inhibited or Vinyl chloride, stabilized
UN1087 Vinyl methyl ether, inhibited
UN1088 Acetal
UN1089 Acetaldehyde
UN1090 Acetone
UN1091 Acetone oils
UN1092 Acrolein, inhibited
UN1093 Acrylonitrile, inhibited
UN1098 Allyl alcohol
UN1099 Allyl bromide
UN1100 Allyl chloride
UN1104 Amyl acetates
UN1105 Pentanols
UN1106 Amylamines
UN1107 Amyl chlorides
UN1108 1-Pentene (n-amylene)
UN1109 Amyl formates
UN1110 n-Amyl methyl ketone
UN1111 Amyl mercaptans
UN1112 Amyl nitrate
UN1113 Amyl nitrites
UN1114 Benzene
UN1120 Butanols
UN1123 Butyl acetates
UN1125 n-Butylamine
UN1126 1-Bromobutane
UN1127 Chlorobutanes
UN1128 n-Butyl formate
UN1129 Butyraldehyde
UN1130 Camphor oil
UN1131 Carbon disulfide
UN1133 Adhesives, containing a flammable liquid
UN1134 Chlorobenzene
UN1135 Ethylene chlorohydrin
UN1136 Coal tar distillates, flammable
UN1139 Coating solution (includes surface treatments or coatings used for industrial or other purposes such as vehicle undercoating, drum or barrel lining)
UN1143 Crotonaldehyde, stabilized
UN1144 Crotonylene
UN1145 Cyclohexane
UN1146 Cyclopentane
UN1147 Decahydronaphthalene
UN1148 Diacetone alcohol
UN1149 Dibutyl ethers
UN1150 1,2-Dichloroethylene
UN1152 Dichloropentanes
UN1153 Ethylene glycol diethyl ether
UN1154 Diethylamine
UN1155 Diethyl ether or Ethyl ether
UN1156 Diethyl ketone
UN1157 Diisobutyl ketone
UN1158 Diisopropylamine
UN1159 Diisopropyl ether
UN1160 Dimethylamine solution
UN1161 Dimethyl carbonate
UN1162 Dimethyldichlorosilane
UN1163 Dimethylhydrazine, unsymmetrical
UN1164 Dimethyl sulfide
UN1165 Dioxane
UN1166 Dioxolane
UN1167 Divinyl ether, inhibited
UN1169 Extracts, aromatic, liquid
UN1170 Ethanol or Ethyl alcohol or Ethanol solutions or Ethyl alcohol solutions
UN1171 Ethylene glycol monoethyl ether
UN1172 Ethylene glycol monoethyl ether acetate
UN1173 Ethyl acetate
UN1175 Ethylbenzene
UN1176 Ethyl borate
UN1177 2-Ethylbutyl acetate
UN1178 2-Ethylbutyraldehyde
UN1179 Ethyl butyl ether
UN1180 Ethyl butyrate
UN1181 Ethyl chloroacetate
UN1182 Ethyl chloroformate
UN1183 Ethyldichlorosilane
UN1184 Ethylene dichloride
UN1185 Ethyleneimine, inhibited
UN1188 Ethylene glycol monomethyl ether
UN1189 Ethylene glycol monomethyl ether acetate
UN1190 Ethyl formate
UN1191 Octyl aldehydes
UN1192 Ethyl lactate
UN1193 Ethyl methyl ketone or Methyl ethyl ketone
UN1194 Ethyl nitrate solutions
UN1195 Ethyl propionate
UN1196 Ethyltrichlorosilane
UN1197 Extracts, flavoring, liquid
UN1198 Formaldehyde, solutions, flammable
UN1199 Furaldehydes
UN1201 Fusel oil
UN1202 Gas oil or Diesel fuel or Heating oil, light
NA1203 Gasohol gasoline mixed with ethyl alcohol, with not more than 20 percent alcohol
UN1203 Gasoline
UN1204 Nitroglycerin, solution in alcohol, with not more than 1 percent nitroglycerin
UN1206 Heptanes
UN1207 Hexaldehyde
UN1208 Hexanes
UN1210 Printing ink, flammable
UN1212 Isobutanol or Isobutyl alcohol
UN1213 Isobutyl acetate
UN1214 Isobutylamine
UN1216 Isooctenes
UN1218 Isoprene, inhibited
UN1219 Isopropanol or Isopropyl alcohol
UN1220 Isopropyl acetate
UN1221 Isopropylamine
UN1222 Isopropyl nitrate
UN1223 Kerosene
UN1224 Ketones, liquid, n.o.s.
NA1226 Lighters for cigars, cigarettes, etc., with lighter fluids
UN1228 Mercaptans, liquid, flammable, toxic, n.o.s. or Mercaptan mixtures, liquid, flammable, toxic, n.o.s.
UN1229 Mesityl oxide
UN1230 Methanol
UN1231 Methyl acetate
UN1233 Methylamyl acetate
UN1234 Methylal
UN1235 Methylamine, aqueous solution
UN1237 Methyl butyrate
UN1238 Methyl chloroformate
UN1239 Methyl chloromethyl ether
UN1242 Methyldichlorosilane
UN1243 Methyl formate
UN1244 Methylhydrazine
UN1245 Methyl isobutyl ketone
UN1246 Methyl isopropenyl ketone, inhibited
UN1247 Methyl methacrylate monomer, inhibited
UN1248 Methyl propionate
UN1249 Methyl propyl ketone
UN1250 Methyltrichlorosilane
UN1251 Methyl vinyl ketone, stabilized
UN1259 Nickel carbonyl
UN1261 Nitromethane
UN1262 Octanes
UN1263 Paint including paint, lacquer, enamel, stain, shellac solutions, varnish, polish, liquid filler, and liquid lacquer base, or Paint related material including paint thinning, drying, removing, or reducing compound
UN1264 Paraldehyde
UN1265 Pentanes
UN1266 Perfumery products with flammable solvents
UN1267 Petroleum crude oil
UN1268 Petroleum distillates, n.o.s. or Petroleum products, n.o.s.
NA1270 Petroleum oil
UN1272 Pine oil
UN1274 n-Propanol or Propyl alcohol, normal
UN1275 Propionaldehyde
UN1276 n-Propyl acetate
UN1277 Propylamine
UN1278 Propyl chloride
UN1279 1,2-Dichloropropane
UN1280 Propylene oxide
UN1281 Propyl formates
UN1282 Pyridine
UN1286 Rosin oil
UN1287 Rubber solution
UN1288 Shale Oil
UN1289 Sodium methylate solutions in alcohol
UN1292 Tetraethyl silicate
UN1293 Tinctures, medicinal
UN1294 Toluene
UN1295 Trichlorosilane
UN1296 Triethylamine
UN1297 Trimethylamine, aqueous solutions with not more than 50 percent trimethylamine by mass
UN1298 Trimethylchlorosilane
UN1299 Turpentine
UN1300 Turpentine substitute
UN1301 Vinyl acetate, inhibited
UN1302 Vinyl ethyl ether, inhibited
UN1303 Vinylidene chloride, inhibited
UN1304 Vinyl isobutyl ether, inhibited
UN1305 Vinyltrichlorosilane, inhibited
UN1306 Wood preservatives, liquid
UN1307 Xylenes
UN1308 Zirconium suspended in a liquid
UN1309 Aluminum powder, coated
UN1310 Ammonium picrate, wetted with not less than 10 percent water, by mass
UN1312 Borneol
UN1313 Calcium resinate
UN1314 Calcium resinate, fused
UN1318 Cobalt resinate, precipitated
UN1320 Dinitrophenol, wetted with not less than 15 percent water, by mass
UN1321 Dinitrophenolates, wetted with not less than 15 percent water, by mass
UN1322 Dinitroresorcinol, wetted with not less than 15 percent water, by mass
UN1323 Ferrocerium
UN1324 Films, nitrocellulose base, gelatine coated (except scrap)
NA1325 Fusee (railway or highway) or Medicines, flammable, solid, n.o.s.
UN1325 Flammable solids, organic, n.o.s.
UN1326 Hafnium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanically produced, particle size less than 53 microns; (b) chemically produced, particle size less than 840 microns
UN1328 Hexamethylenetetramine
UN1330 Manganese resinate
UN1331 Matches, strike anywhere
UN1332 Metaldehyde
UN1333 Cerium, slabs, ingots, or rods
UN1334 Naphthalene, crude or Naphthalene, refined
UN1336 Nitroguanidine, wetted or Picrite, wetted with not less than 20 percent water, by mass
UN1337 Nitrostarch, wetted with not less than 20 percent water, by mass
UN1338 Phosphorus, amorphous
UN1339 Phosphorus heptasulfide, free from yellow or white phosphorus
UN1340 Phosphorus pentasulfide, free from yellow or white phosphorus
UN1341 Phosphorus sesquisulfide, free from yellow or white phosphorus
UN1343 Phosphorus trisulfide, free from yellow or white phosphorus
NA1344 Picric acid, wet, with not less than 10 percent water
UN1344 Trinitrophenol, wetted with not less than 30 percent water, by mass
UN1346 Silicon powder, amorphous
UN1347 Silver picrate, wetted with not less than 30 percent water, by mass
UN1348 Sodium dinitro-o-cresolate, wetted with not less than 15 percent water, by mass
UN1349 Sodium picramate, wetted with not less than 20 percent water, by mass
NA1350 Sulfur
UN1350 Sulfur
UN1352 Titanium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanically produced, particle size less than 53 microns; (b) chemically produced, particle size less than 840 microns
UN1353 Fibers or Fabrics impregnated with weakly nitrated nitrocellulose, n.o.s.
UN1354 Trinitrobenzene, wetted with not less than 30 percent water, by mass
UN1355 Trinitrobenzoic acid, wetted with not less than 30 percent water, by mass
UN1356 Trinitrotoluene wetted with not less than 30 percent water, by mass
UN1357 Urea nitrate, wetted with not less than 20 percent water, by mass
UN1358 Zirconium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanically produced, particle size less than 53 microns; (b) chemically produced, particle size less than 840 microns
UN1360 Calcium phosphide
NA1361 Charcoal briquettes, shell, screenings, wood, etc.
UN1361 Carbon, animal or vegetable origin
UN1362 Carbon, activated
UN1363 Copra
UN1364 Cotton waste, oily
NA1365 Cotton
UN1365 Cotton, wet
UN1366 Diethylzinc
UN1369 p-Nitrosodimethylaniline
UN1370 Dimethylzinc
UN1373 Fibers or Fabrics, animal or vegetable or Synthetic, n.o.s. with animal or vegetable oil
UN1374 Fish meal, unstabilized or Fish scrap, unstabilized
UN1376 Iron oxide, spent, or Iron sponge, spent obtained from coal gas purification
UN1378 Metal catalyst, wetted with a visible excess of liquid
UN1379 Paper, unsaturated oil treated incompletely dried (including carbon paper)
UN1380 Pentaporane
UN1381 Phosphorus, white dry or Phosphorus, white, under water or Phosphorus white, in solution or Phosphorus, yellow dry or Phosphorus, yellow, under water or Phosphorus, yellow, in solution
UN1382 Potassium sulfide, anhydrous or Potassium sulfide with less than 30 percent water of crystallization
UN1383 Pyrophoric metals, n.o.s. or Pyrophoric alloys, n.o.s.
UN1384 Sodium dithionite or Sodium hydrosulfite
UN1385 Sodium sulfide, anhydrous or Sodium sulfide with less than 30 percent water of crystallization
UN1386 Seed cake, containing vegetable oil solvent extractions and expelled seeds, with not more than 10 percent of oil and when the amount of moisture is higher than 11 percent, with not more than 20 percent of oil and moisture combined or Seed cake with more than 1.5 percent oil and not more than 11 percent moisture
UN1389 Alkali metal amalgam, liquid or Alkali metal amalgam, solid
UN1390 Alkali metal amides
UN1391 Alkali metal dispersions, or Alkaline earth metal dispersions
UN1392 Alkaline earth metal amalgams
UN1393 Alkaline earth metal alloys, n.o.s.
UN1394 Aluminum carbide
UN1395 Aluminum ferrosilicon powder
UN1396 Aluminum powder, uncoated
UN1397 Aluminum phosphide
UN1398 Aluminum silicon powder, uncoated
UN1400 Barium
UN1401 Calcium
UN1402 Calcium carbide
UN1403 Calcium cyanamide with more than 0.1 percent of calcium carbide
UN1404 Calcium hydride
UN1405 Calcium silicide
UN1407 Cesium or Caesium
UN1408 Ferrosilicon, with 30 percent or more but less than 90 percent silicon
UN1409 Metal hydrides, water-reactive, n.o.s.
UN1410 Lithium aluminum hydride
UN1411 Lithium aluminum hydride, ethereal
UN1413 Lithium borohydride
UN1414 Lithium hydride
UN1415 Lithium
UN1417 Lithium silicon
UN1418 Magnesium, powder or Magnesium alloys, powder
UN1419 Magnesium aluminum phosphide
UN1420 Potassium, metal alloys
UN1421 Alkali metal alloys, liquid, n.o.s.
UN1422 Potassium sodium alloys
UN1423 Rubidium
UN1426 Sodium borohydride
UN1427 Sodium hydride
UN1428 Sodium
UN1431 Sodium methylate
UN1432 Sodium phosphide
UN1433 Stannic phosphide
UN1435 Zinc ashes
UN1436 Zinc powder or Zinc dust
UN1437 Zirconium hydride
UN1438 Aluminum, nitrate
UN1439 Ammonium dichromate
UN1442 Ammonium perchlorate
UN1444 Ammonium persulfate
UN1445 Barium chlorate
UN1446 Barium nitrate
UN1447 Barium perchlorate
UN1448 Barium permanganate
UN1449 Barium peroxide
UN1450 Bromates, inorganic, n.o.s.
UN1451 Cesium nitrate or Caesium nitrate
UN1452 Calcium chlorate
UN1453 Calcium chlorite
UN1454 Calcium nitrate
UN1455 Calcium perchlorate
UN1456 Calcium permanganate
UN1457 Calcium peroxide
UN1458 Chlorate and borate mixtures
UN1459 Chlorate and magnesium chloride mixtures
UN1461 Chlorates, inorganic, n.o.s.
UN1462 Chlorites, inorganic, n.o.s.
NA1463 Chromic acid, solid
UN1463 Chromium trioxide, anhydrous
UN1465 Didymium nitrate
UN1466 Ferric nitrate
UN1467 Guanidine nitrate
UN1469 Lead nitrate
UN1470 Lead perchlorate, solid or Lead perchlorate, solution
UN1471 Lithium hypochlorite, dry or Lithium hypochlorite mixtures, dry
UN1472 Lithium peroxide
UN1473 Magnesium bromate
UN1474 Magnesium nitrate
UN1475 Magnesium perchlorate
UN1476 Magnesium peroxide
UN1477 Nitrates, inorganic, n.o.s.
NA1479 Medicines, oxidizing substance, solid, n.o.s.
UN1479 Oxidizing solid, n.o.s.
UN1481 Perchlorates, inorganic, n.o.s.
UN1482 Permanganates, inorganic, n.o.s.
UN1483 Peroxides, inorganic, n.o.s.
UN1484 Potassium bromate
UN1485 Potassium chlorate
UN1486 Potassium nitrate
UN1487 Potassium nitrate and sodium nitrite mixtures
UN1488 Potassium nitrite
UN1489 Potassium perchlorate, solid or Potassium perchlorate, solution
UN1490 Potassium permanganate
UN1491 Potassium peroxide
UN1492 Potassium persulfate
UN1493 Silver nitrate
UN1494 Sodium bromate
UN1495 Sodium chlorate
UN1496 Sodium chlorite
UN1498 Sodium nitrate
UN1499 Sodium nitrate and potassium nitrate mixtures
UN1500 Sodium nitrite
UN1502 Sodium perchlorate
UN1503 Sodium permanganate
UN1504 Sodium peroxide
UN1505 Sodium persulfate
UN1506 Strontium chlorate
UN1507 Strontium nitrate
UN1508 Strontium perchlorate
UN1509 Strontium peroxide
UN1510 Tetranitromethane
UN1511 Urea hydrogen peroxide
UN1512 Zinc ammonium nitrite
UN1513 Zinc chlorate
UN1514 Zinc nitrate
UN1515 Zinc permanganate
UN1516 Zinc peroxide
UN1517 Zirconium picramate, wetted with not less than 20 percent water, by mass
UN1541 Acetone cyanohydrin, stabilized
UN1544 Alkaloids, solid, n.o.s. or Alkaloid salts, solid, n.o.s. poisonous
UN1545 Allyl isothiocyanate, stabilized
UN1546 Ammonium arsenate
UN1547 Aniline
UN1548 Aniline hydrochloride
NA1549 Antimony tribromide, solution or Antimony, trifluoride, solid or Antimony, trifluoride, solution or Antimony tribromide, solid
UN1549 Antimony compounds, inorganic, solid, n.o.s.
UN1550 Antimony lactate
UN1551 Antimony potassium tartrate
UN1553 Arsenic acid, liquid
UN1554 Arsenic acid, solid
UN1555 Arsenic bromide
NA1556 Methyldichloroarsine
UN1556 Arsenic compounds, liquid, n.o.s. inorganic, including arsenates, n.o.s.; arsenites, n.o.s.; arsenic sulfides, n.o.s.; and organic compounds of arsenic, n.o.s.
NA1557 Arsenic sulfide or Arsenic trisulfide
UN1557 Arsenic compounds, solid, n.o.s. inorganic, including arsenates, n.o.s.; arsenites, n.o.s.; arsenic sulfides, n.o.s.; and organic compounds of arsenic, n.o.s.
UN1558 Arsenic
UN1559 Arsenic pentoxide
UN1560 Arsenic trichloride
UN1561 Arsenic trioxide
UN1562 Arsenical dust
UN1564 Barium compounds, n.o.s.
UN1565 Barium cyanide
UN1566 Beryllium compounds, n.o.s.
UN1567 Beryllium, powder
UN1569 Bromoacetone
UN1570 Brucine
UN1571 Barium azide, wetted with not less than 50 percent water, by mass
UN1572 Cacodylic acid
UN1573 Calcium arsenate
NA1574 Calcium arsenite, solid
UN1574 Calcium arsenate and calcium arsenite, mixtures, solid
UN1575 Calcium cyanide
UN1577 Chlorodinitrobenzenes
UN1578 Chloronitrobenzene, ortho, liquid or Chloronitrobenzenes meta or para, solid
UN1579 4-Chloro-o-toluidine hydrochloride
UN1580 Chloropicrin
UN1581 Chloropicrin and methyl bromide mixtures
UN1582 Chloropicrin and methyl chloride mixtures
UN1583 Chloropicrin mixtures, n.o.s.
UN1585 Copper acetoarsenite
UN1586 Copper arsenite
UN1587 Copper cyanide
UN1588 Cyanides, inorganic, solid, n.o.s.
UN1589 Cyanogen chloride, inhibited
UN1590 Dichloroanilines, liquid or Dichloroanilines, solid
UN1591 o-Dichlorobenzene
UN1593 Dichloromethane
UN1594 Diethyl sulfate
UN1595 Dimethyl sulfate
UN1596 Dinitroanilines
UN1597 Dinitrobenzenes, liquid or Dinitrobenzenes, solid
UN1598 Dintro-o-cresol, solid or Dintro-o-cresol, solution
UN1599 Dinitrophenel solutions
UN1600 Dinitrotoluenes, molten
UN1601 Disinfectants, solid, toxic, n.o.s.
UN1602 Dyes, liquid, toxic, n.o.s. or Dye intermediates, liquid, toxic, n.o.s.
UN1603 Ethyl bromoacetate
UN1604 Ethylenediamine
UN1605 Ethylene dibromide
UN1606 Ferric arsenate
UN1607 Ferric arsenite
UN1608 Ferrous arsenate
UN1611 Hexaethyl tetraphosphate, liquid or Hexaethyl tetraphosphate, solid
UN1612 Hexaethyl tetraphosphate and compressed gas mixtures
UN1613 Hydrocyanic acid, aqueous solutions or Hydrogen cyanide, aqueous solutions with not more than 20 percent hydrogen cyanide or Hydrocyanic acid, aqueous solutions with less than 5 percent hydrogen cyanide
UN1614 Hydrogen cyanide, stabilized with less than 3 percent water and absorbed in a porous inert material
UN1616 Lead acetate
UN1617 Lead arsenates
UN1618 Lead arsenites
UN1620 Lead cyanide
UN1621 London purple
UN1622 Magnesium arsenate
UN1623 Mercuric arsenate
UN1624 Mercuric chloride
UN1625 Mercuric nitrate
UN1626 Mercuric potassium cyanide
UN1627 Mercurous nitrate
UN1629 Mercury acetate
UN1630 Mercury ammonium chloride
UN1631 Mercury benzoate
UN1634 Mercury bromides
UN1636 Mercury cyanide
UN1637 Mercury gluconate
UN1638 Mercury iodide, solution or Mercury iodide, solid
UN1639 Mercury nucleate
UN1640 Mercury oleate
UN1641 Mercury oxide
UN1642 Mercury oxycyanide, desensitized
UN1643 Mercury potassium iodide
UN1644 Mercury salicylate
UN1645 Mercury sulfates
UN1646 Mercury thiocyanate
UN1647 Methyl bromide and ethylene dibromide mixtures, liquid
UN1648 Acetonitrile
NA1649 Tetraethyl lead, liquid
UN1649 Motor fuel anti-knock mixtures
UN1650 beta-Naphthylamine
UN1651 Naphthylthiourea
UN1652 Naphthylurea
UN1653 Nickel cyanide
UN1654 Nicotine
UN1655 Nicotine compounds, solid, n.o.s. or Nicotine preparations, solid, n.o.s.
UN1656 Nicotine hydrochloride or Nicotine hydrochloride solution
UN1657 Nicotine salicylate
UN1658 Nicotine sulfate, solid or Nicotine sulfate, solution
UN1659 Nicotine tartrate
UN1660 Nitric oxide, compressed
UN1661 Nitroanilines (o-; m-; p-;)
UN1662 Nitrobenzene
UN1663 Nitophenols (o-; m-; p-;)
UN1664 Nitrotoluenes, liquid (o-; m-; p-;) or Nitrotoluenes, solid (m-; or p-;)
UN1665 Nitroxylenes (o-; m-; p-`)
UN1669 Pentachloroethane
UN1670 Perchloromethyl mercaptan
UN1671 Phenol, solid
UN1672 Phenylcarbylamine chloride
UN1673 Phenylenediamines (o-; m-; p-;)
UN1674 Phenylmercuric acetate
UN1677 Potassium arsenate
UN1678 Potassium arsenite
UN1679 Potassium cuprocyanide
UN1680 Potassium cyanide
UN1683 Silver arsenite
UN1684 Silver cyanide
UN1685 Sodium arsenate
UN1686 Sodium arsenite, aqueous solutions
UN1687 Sodium azide
UN1688 Sodium cacodylate
UN1689 Sodium cyanide
UN1690 Sodium fluoride
UN1691 Strontium arsenite
UN1692 Strychnine or Strychnine salts
NA1693 Tear gas devices with more than 2 percent tear gas substances, by mass
UN1693 Tear gas substances, liquid, n.o.s. or Tear gas substances, solid, n.o.s.
UN1694 Bromobenzyl cyanides, liquid or Bromobenzyl cyanides, solid
UN1695 Chloroacetone, stabilized
UN1697 Chloroacetophenone (CN), liquid or Chloroacetophenone (CN), solid
UN1698 Diphenylamine chloroarsine
UN1699 Diphenylchloroarsine, liquid or Diphenylchloroarsine, solid
UN1700 Tear gas candles
UN1701 Xylyl bromide
UN1702 Tetrachloroethane
UN1704 Tetraethyl dithiopyrophosphate
NA1707 Thallium sulfate, solid
UN1707 Thallium compounds, n.o.s.
UN1708 Toluidines liquid or Toluidines solid
UN1709 2,4-Toluylenediamine or 2,4-Toluenediamine
UN1710 Trichloroethylene
UN1711 Xylidines, solid or Xylidines, solution
UN1712 Zinc arsenate or Zinc arsenite or Zinc arsenate and zinc arsenite mixtures
UN1713 Zinc cyanide
UN1714 Zinc phosphide
UN1715 Acetic anhydride
UN1716 Acetyl bromide
UN1717 Acetyl chloride
UN1718 Butyl acid phosphate
UN1719 Caustic alkali liquids, n.o.s.
UN1722 Allyl chloroformate
UN1723 Allyl iodide
UN1724 Allyltrichlorosilane, stabilized
UN1725 Aluminum bromide, anhydrous
UN1726 Aluminum chloride, anhydrous
UN1727 Ammonium hydrogendifluoride, solid
UN1728 Amyltrichlorosilane
UN1729 Anisoyl chloride
UN1730 Antimony pentachloride, liquid
UN1731 Antimony pentachloride, solutions
UN1732 Antimony pentafluoride
UN1733 Antimony trichloride, liquid or Antimony trichloride, solid
UN1736 Benzoyl chloride
UN1737 Benzyl bromide
UN1738 Benzyl chloride or Benzyl chloride unstabilized
UN1739 Benzyl chloroformate
UN1740 Hydrogendifluorides, n.o.s. solid or Hydrogendifluorides, n.o.s. solutions
UN1741 Boron trichloride
UN1742 Boron trifluoride acetic acid complex
UN1743 Boron trifluoride propionic acid complex
UN1744 Bromine or Bromine solutions
UN1745 Bromine pentafluoride
UN1746 Bromine trifluoride
UN1747 Butyltrichlorosilane
UN1748 Calcium hypochlorite, dry or Calcium hypochlorite mixtures dry with more than 39 percent available chlorine (8.8 percent available oxygen)
UN1749 Chlorine trifluoride
UN1750 Chloroacetic acid, solution
UN1751 Chloroacetic acid, solid
UN1752 Chloroacetyl chloride
UN1753 Chlorophenyltrichlorosilane
UN1754 Chlorosulfonic acid (with or without sulfur trioxide)
UN1755 Chromic acid solution
UN1756 Chromic fluoride, solid
UN1757 Chromic fluoride, solution
UN1758 Chromium oxychloride
UN1759 Corrosive solids, n.o.s.
NA1759 Ferrous chloride, solid or Medicines, corrosive, solid, n.o.s.
NA1760 Chemical kit, or Compounds, cleaning liquid or Compounds, tree killing liquid or Compounds, weed killing, liquid or Ferrous chloride, solution or Medicines, corrosive, liquid, n.o.s. or Titanium sulfate solution
UN1760 Corrosive liquids, n.o.s.
UN1761 Cupriethylenediamine solution
UN1762 Cyclohexenyltrichlorosilane
UN1763 Cyclohexyltrichlorosilane
UN1764 Dichloroacetic acid
UN1765 Dichloroacetyl chloride
UN1766 Dichlorophenyltrichlorosilane
UN1767 Diethyldichlorosilane
UN1768 Difluorophosphoric acid, anhydrous
UN1769 Diphenyldichlorosilane
UN1770 Diphenylmethyl bromide
UN1771 Dodecyltrichlorosilane
UN1773 Ferric chloride, anhydrous
UN1774 Fire extinguisher charges, corrosive liquid
UN1775 Fluoroboric acid
UN1776 Fluorophosphoric acid anhydrous
UN1777 Fluorosulfonic acid
UN1778 Fluorosilicic acid
UN1779 Formic acid
UN1780 Fumaryl chloride
UN1781 Hexadecyltrichlorosilane
UN1782 Hexafluorophosphoric acid
UN1783 Hexamethylenediamine solution
UN1784 Hexyltrichlorosilane
UN1786 Hydrofluoric acid and Sulfuric acid mixtures
UN1787 Hydriodic acid
UN1788 Hydrobromic acid, with more than 49 percent hydrobromic acid or Hydrobromic acid, with not more than 49 percent hydrobromic acid
UN1789 Hydrochloric acid
UN1790 Hydrofluoric acid, with more than 60 percent strength or Hydrofluoric acid, with not more than 60 percent strength
UN1791 Hypochlorite solutions
UN1792 Iodine monochloride
UN1793 Isopropyl acid phosphate
UN1794 Lead sulfate with more than 3 percent free acid
UN1796 Nitrating acid mixtures, with more than 50 percent nitric acid or Nitrating acid mixtures, with not more than 50 percent nitric acid
UN1798 Nitrohydrochloric acid
UN1799 Nonyltrichlorosilane
UN1800 Octadecyltrichlorosilane
UN1801 Octyltrichlorosilane
UN1802 Perchloric acid with not more than 50 percent acid by mass
UN1803 Phenolsulfonic acid, liquid
UN1804 Phenyltrichlorosilane
UN1805 Phosphoric acid
UN1806 Phosphorus pentachloride
UN1807 Phosphorus pentoxide
UN1808 Phosphorus tribromide
UN1809 Phosphorus trichloride
UN1810 Phosphorus oxychloride
UN1811 Potassium hydrogendifluoride, solid or Potassium hydrogendifluoride, solution
UN1812 Potassium fluoride
UN1813 Potassium hydroxide, solid
UN1814 Potassium hydroxide, solution
UN1815 Propionyl chloride
UN1816 Propyltrichlorosilane
UN1817 Pyrosulfuryl chloride
UN1818 Silicon tetrachloride
UN1819 Sodium aluminate, solution
UN1823 Sodium hydroxide, solid
UN1824 Sodium hydroxide solution
UN1825 Sodium monoxide
UN1826 Nitrating acid mixtures, spent with more than 50 percent nitric acid or Nitrating acid mixtures, spent with not more than 50 percent nitric acid
UN1827 Stannic chloride, anhydrous
UN1828 Sulfur chlorides
NA1829 Sulfur trioxide, uninhibited
UN1829 Sulfur trioxide, inhibited or Sulfur trioxide, stabilized
UN1830 Sulfuric acid with more than 51 percent acid
UN1831 Sulfuric acid, fuming with 30 percent or more free sulfur trioxide or Sulfuric acid, fuming with less than 30 percent free sulfur trioxide
UN1832 Sulfuric acid, spent
UN1833 Sulfurous acid
UN1834 Sulfuryl chloride
UN1835 Tetramethylammonium hydroxide
UN1836 Thionyl chloride
UN1837 Thiophosphoryl chloride
UN1838 Titanium tetrachloride
UN1839 Trichloroacetic acid
UN1840 Zinc chloride, solution
UN1841 Acetaldehyde ammonia
UN1843 Ammonium dintro-o-cresolate
UN1845 Carbon dioxide, solid, or Dry ice
UN1846 Carbon tetrachloride
UN1847 Potassium sulfide, hydrated with not less than 30 percent water of crystallization
UN1848 Propionic acid
UN1849 Sodium sulfide, hydrated with not less than 30 percent water
UN1851 Medicine, liquid, toxic, n.o.s.
UN1854 Barium alloys, pyrophic
UN1855 Calcium, pyrophoric or Calcium alloys, pyrophoric
UN1858 Hexafluoropropylene, compressed or Refrigerant gas R 1216
UN1859 Silicon tetrafluoride, compressed
UN1860 Vinyl fluoride, inhibited
UN1862 Ethyl crotonate
UN1863 Fuel, aviation, turbine engine
UN1865 n-Propyl nitrate
UN1866 Resin solution, flammable
UN1868 Decaborane
UN1869 Magnesium or Magnesium alloys with more than 50 percent magnesium in pellets, turnings, or ribbons
UN1870 Potassium borohydride
UN1871 Titanium hydride
UN1872 Lead dioxide
UN1873 Perchloric acid with more than 50 percent but not more than 72 percent acid, by mass
UN1884 Barium oxide
UN1885 Benzidine
UN1886 Benzylidene chloride
UN1887 Bromochloromethane
UN1888 Chloroform
UN1889 Cyanogen bromide
UN1891 Ethyl bromide
UN1892 Ethyldichloroarsine
UN1894 Phenylmercuric hydroxide
UN1895 Phenylmercuric nitrate
UN1897 Tetrachloroethylene
UN1898 Acetyl iodide
UN1902 Diisooctyl acid phosphate
UN1903 Disinfectants, liquid, corrosive, n.o.s.
UN1905 Selenic acid
UN1906 Sludge, acid
UN1907 Soda lime with more than 4 percent sodium hydroxide
UN1908 Chlorite solution
UN1910 Calcium oxide
NA1911 Diborane mixtures
UN1911 Diborane, compressed
UN1912 Methyl chloride and methylene chloride mixtures
UN1913 Neon, refrigerated liquid (cryogenic liquid)
UN1914 Butyl propionates
UN1915 Cyclohexanone
UN1916 2,2'-Dichlorodiethyl ether
UN1917 Ethyl acrylate, inhibited
UN1918 Isopropylbenzene
UN1919 Methyl acrylate, inhibited
UN1920 Nonanes
UN1921 Propyleneimine, inhibited
UN1922 Pyrrolidine
UN1923 Calcium dithionite or Calcium hydrosulfite
UN1928 Methyl magnesium bromide, in ethyl ether
UN1929 Potassium dithionite or Potassium hydrosulfite
UN1931 Zinc dithionite or Zinc hydrosulfite
UN1932 Zirconium scrap
UN1935 Cyanide solutions, n.o.s.
UN1938 Bromoacetic acid, solution or Bromoacetic acid, solid
UN1939 Phosphorus oxybromide
UN1940 Thioglycolic acid
UN1941 Dibromodifluoromethane, R12B2
UN1942 Ammonium nitrate, with not more than 0.2 percent of combustible substances, including any organic substance calculated as carbon, to the exclusion of any other added substance
UN1944 Matches, safety (book, card, or strike on box)
UN1945 Matches, wax, Vesta
UN1950 Aerosols, corrosive, Packing Group II or III, (each not exceeding 1 L capacity) or Aerosols, flammable (each not exceeding 1 L capacity) or Aerosols, flammable, n.o.s. (engine starting fluid) (each not exceeding 1 L capacity) or Aerosols, nonflammable (each not exceeding 1 L capacity) or Aerosols, poison, each not exceeding 1 L capacity
UN1951 Argon, refrigerated liquid (cryogenic liquid)
UN1952 Ethylene oxide and carbon dioxide mixtures with not more than 9 percent ethylene oxide
UN1953 Compressed gas, toxic, flammable, n.o.s. Inhalation Hazard Zone A, B, C, or D
NA1954 Insecticide gases flammable n.o.s. or Refrigerant gases, n.o.s., or Dispersant gases, n.o.s. or Refrigerating machines, containing flammable, nonpoisonous, liquefied gas
UN1954 Compressed gas, flammable, n.o.s.
NA1955 Organic phosphate, mixed with compressed gas or Organic phosphate compound, mixed with compressed gas or Organic phosphorous compound, mixed with compressed gas
UN1955 Compressed gas, toxic, n.o.s. Inhalation Hazard Zone A, B, C, or D
NA1956 Accumulators, pressurized, pneumatic or hydraulic (containing nonflammable gas)
UN1956 Compressed gas, n.o.s.
UN1957 Deuterium, compressed
UN1958 1,2-Dichloro-1,1,2,2-Tetrafluoroethane or Refrigerant gas R 114
UN1959 1,1-Difluoroethylene or Refrigerant gas R 1132a
NA1961 Ethane-Propane mixture, refrigerated liquid
UN1961 Ethane, refrigerated liquid
UN1962 Ethylene, compressed
UN1963 Helium, refrigerated liquid (cyrogenic liquid)
UN1964 Hydrocarbon gas mixture, compressed, n.o.s.
UN1965 Hydrocarbon gas mixtures, liquefied, n.o.s.
UN1966 Hydrogen, refrigerated liquid (cryogenic liquid)
NA1967 Parathion and compressed gas mixture
UN1967 Insecticide gases, toxic, n.o.s.
UN1968 Insecticide gases, n.o.s.
UN1969 Isobutane see also Petroleum gases, liquified
UN1970 Krypton, refrigerated liquid (cryogenic liquid)
UN1971 Methane, compressed or Natural gas, compressed (with high methane content)
UN1972 Methane, refrigerated liquid (cryogenic liquid) or Natural gas, refrigerated liquid (cryogenic liquid), with high methane content
UN1973 Chlorodifluoromethane and chloropentafluoroethane mixture or Refrigerant gas R 502 with fixed boiling point, with approximately 49 percent chlorodifluoromethane
UN1974 Chlorodifluorobromomethane or Refrigerant gas R 12B1
UN1975 Nitric oxide and dinitrogen tetroxide mixtures or Nitric oxide and nitrogen dioxide mixtures
UN1976 Octafluorocyclobutane, or Refrigerant gas RC 318
UN1977 Nitrogen, refrigerated liquid cryogenic liquid
UN1978 Propane see also Petroleum gases, liquefied
UN1979 Rare gases, mixtures, compressed
UN1980 Rare gases and oxygen mixtures, compressed
UN1981 Rare gases and nitrogen mixtures, compressed
UN1982 Tetrafluoromethane, compressed or Refrigerant gas R 14
UN1983 1-Chloro-2,2,2-trifluoroethane or Refrigerant gas R 133a
UN1984 Trifluoromethane or Refrigerant gas R 23
NA1986 Denatured alcohol or Propargyl alcohol
UN1986 Alcohols, flammable, toxic, n.o.s.
NA1987 Denatured alcohol
UN1987 Alcohols, n.o.s.
UN1988 Aldehydes, flammable, toxic, n.o.s.
UN1989 Aldehydes, n.o.s.
UN1990 Benzaldehyde
UN1991 Chloroprene, inhibited
UN1992 Flammable liquids, toxic, n.o.s.
NA1993 Combustible liquid, n.o.s. or Compounds, cleaning liquid or Compounds, tree killing liquid or Compounds, weed killing, liquid or Diesel fuel or Fuel oil (No. 1, 2, 4, 5, or 6) or Medicines, flammable, liquid, n.o.s. or Refrigerating machine
UN1993 Flammable liquids, n.o.s.
UN1994 Iron pentacarbonyl
NA1999 Asphalt, at or above its flashpoint
UN1999 Tars, liquid including road asphalt and oils, bitumen and cut backs
UN2000 Celluloid, in block, rods, rolls, sheets, tubes, etc., except scrape
UN2001 Cobalt naphthenates, powder
UN2002 Celluloid, scrape
UN2003 Metal alkyls, water-reactive, n.o.s. or Metal aryls, water-reactive, n.o.s.
UN2004 Magnesium diamide
UN2005 Magnesium diphenyl
UN2006 Plastics, nitrocellulose-based, self-heating, n.o.s.
UN2008 Zirconium powder, dry
UN2009 Zirconium, dry, finished sheets, strip or coiled wire
UN2010 Magnesium hydride
UN2011 Magnesium phosphide
UN2012 Potassium phosphide
UN2013 Strontium phosphide
UN2014 Hydrogen peroxide, aqueous solutions with more than 40 percent but not more than 60 percent hydrogen peroxide (stabilized as necessary) or Hydrogen peroxide, aqueous solutions with not less than 20 percent but not more than 40 percent hydrogen peroxide (stabilized as necessary)
UN2015 Hydrogen peroxide, stabilized or Hydrogen peroxide aqueous solutions, stabilized with more than 60 percent hydrogen peroxide
UN2016 Ammunition, toxic, non-explosive, without burster or expelling charge, non-fuzed
UN2017 Ammunition, tear-producing, non-explosive, without burster or expelling charge, non-fuzed
UN2018 Chloroanilines, solid
UN2019 Chloroanilines, liquid
UN2020 Chlorophenols, solid
UN2021 Chlorophenols, liquid
UN2022 Cresylic acid
UN2023 Epichlorohydrin
UN2024 Mercury compounds, liquid, n.o.s.
UN2025 Mercury compounds, solid, n.o.s.
UN2026 Phenylmercuric compounds, n.o.s.
UN2027 Sodium arsenite, solid
UN2028 Bombs, smoke, non-explosive, with corrosive liquid, without initiating device
UN2029 Hydrazine, anhydrous or Hydrazine aqueous solutions with more than 64 percent hydrazine, by mass
UN2030 Hydrazine hydrate or Hydrazine aqueous solutions, with not less than 37 percent but not more than 64 percent hydrazine, by mass
UN2031 Nitric acid other than red fuming, with more than 70 percent nitric acid or Nitric acid other than red fuming, with not more than 70 percent nitric acid
UN2032 Nitric acid, red fuming
UN2033 Potassium monoxide
UN2034 Hydrogen and Methane mixtures, compressed
UN2035 1,1,1-Trifluoroethane, compressed or Refrigerant gas R 143a
UN2036 Xenon, compressed
UN2037 Gas cartridges (flammable) without a release device, non-refillable or Receptacles, small, containing gas (gas cartridges) flammable or nonflammable, without release device, not refillable and not exceeding 1 L capacity
UN2038 Dinitrotoluenes, liquid or Dinitrotoluenes, solid
UN2044 2,2-Dimethylpropane
UN2045 Isobutyraldehyde or Isobutyl aldehyde
UN2046 Cymenes
UN2047 Dichloropropenes
UN2048 Dicyclopentadiene
UN2049 Diethylbenzene
UN2050 Diisobutylene, isomeric compounds
UN2051 2-Dimethylaminoethanol
UN2052 Dipentene
UN2053 Methyl isobutyl carbinol
UN2054 Morpholine
UN2055 Styrene monomer, inhibited
UN2056 Tetrahydrofuran
UN2057 Tripropylene
UN2058 Valeraldehyde
UN2059 Nitrocellulose, solution, flammable with not less than 12.6 percent nitrogen, by mass, and not more than 55 percent nitrocellulose
UN2067 Ammonium nitrate fertilizers; uniform non-segregating mixtures of ammonium nitrate with added matter which is inorganic and chemically inert towards ammonium nitrate, with not less than 90 percent ammonium nitrate and not more than 0.2 percent combustible
NA2069 Ammonium nitrate mixed fertilizers

UN2071 Ammonium nitrate fertilizers: uniform non-segregating mixtures of nitrogen/phosphate or nitrogen/potash types or complete fertilizers of nitrogen/phosphate/potash type, with not more than 70 percent ammonium nitrate and not more than 0.4 percent total add
NA2072 Ammonium nitrate fertilizers
UN2073 Ammonia solution, relative density less than 0.880 at 15 degrees C in water, with more than 35 percent but not more than 50 percent ammonia
UN2074 Acrylamide
UN2075 Chloral, anhydrous, inhibited
UN2076 Cresols
UN2077 alpha-Naphthylamine
UN2078 Toluene diisocyanate
UN2079 Diethylenetriamine
UN2186 Hydrogen chloride, refrigerated liquid
UN2187 Carbon dioxide, refrigerated liquid
UN2188 Arsine
UN2189 Dichlorosilane
UN2190 Oxygen difluoride, compressed
UN2191 Sulfuryl fluoride
UN2192 Germane
UN2193 Hexafluoroethane, compressed or Refrigerant gas R 116
UN2194 Selenium hexafluoride
UN2195 Tellurium hexafluoride
UN2196 Tungsten hexafluoride
UN2197 Hydrogen iodide, anhydrous
UN2198 Phosphorus pentafluoride, compressed
UN2199 Phosphine
UN2200 Propadiene, inhibited
UN2201 Nitrous oxide, refrigerated liquid
UN2202 Hydrogen selenide, anhydrous
UN2203 Silane, compressed
UN2204 Carbonyl sulfide
UN2205 Adiponitrile
UN2206 Isocyanates, toxic, n.o.s. or Isocyanate solutions, toxic, n.o.s. flashpoint more than 61 degrees C and boiling point less than 300 degrees C
UN2208 Calcium hypochlorite mixtures, dry, with more than 10 percent but not more than 39 percent available chlorine
UN2209 Formaldehyde, solutions, with not less than 25 percent formaldehyde
UN2210 Maneb or Maneb preparations with not less than 60 percent maneb
UN2211 Polymeric beads, expandable, evolving flammable vapor
NA2212 Asbestos
UN2212 Blue asbestos (Crocidolite) or Brown asbestos (amosite, mysorite)
UN2213 Paraformaldehyde
UN2214 Phthalic anhydride with more than .05 percent maleic anhydride
NA2215 Maleic acid
UN2215 Maleic anhydride
UN2216 Fish meal, stabilized or Fish scrap, stabilized
UN2217 Seed cake with not more than 1.5 percent oil and not more than 11 percent moisture
UN2218 Acrylic acid, inhibited
UN2219 Allyl glycidyl ether
UN2222 Anisole
UN2224 Matches, fusee or Benzonitrile
UN2225 Benzene sulfonyl chloride
UN2226 Benzotrichloride
UN2227 n-Butyl methacrylate, inhibited
UN2232 2-Chloroethanal
UN2233 Chloroanisidines
UN2234 Chlorobenzotrifluorides
UN2235 Chlorobenzyl chlorides
UN2236 3-Chloro-4-methylphenyl isocyanate
UN2237 Chloronitroanilines
UN2238 Chlorotoluenes
UN2239 Chlorotoluidines liquid or Chlorotoluidines solid
UN2240 Chromosulfuric acid
UN2241 Cycloheptane
UN2242 Cycloheptene
UN2243 Cyclohexyl acetate
UN2244 Cyclopentanol
UN2245 Cyclopentanone
UN2246 Cyclopentene
UN2247 n-Decane
UN2248 Di-n-butylamine
UN2249 Dichlorodimethyl ether, symmetrical
UN2250 Dichlorophenyl isocyanates
UN2251 Bicyclo [2,2,1] hepta-2, 5-diene, inhibited or 2,5-Norbornadiene, inhibited
UN2252 1,2-Dimethoxyethane
UN2253 N,N-Dimethylaniline
UN2256 Cyclohexene
UN2257 Potassium
UN2258 1,2-Propylenediamine
UN2259 Triethylenetetramine
UN2260 Tripropylamine
UN2261 Xylenols
UN2262 Dimethylcardamoyl chloride
UN2263 Dimethylcyclohexanes
UN2264 Dimethylcyclohexlamine
UN2265 N,N-Dimethylformamide
UN2266 Dimethyl-N-propylamine
UN2267 Dimethyl thiophosphoryl chloride
UN2269 3,3'-Iminodipropylamine
UN2270 Ethylamine, aqueous solution with not less than 50 percent but not more than 70 percent ethylamine
UN2271 Ethyl amyl ketone
UN2272 N-Ethylaniline
UN2273 2-Ethylaniline
UN2274 N-Ethyl-N-benzylaniline
UN2275 2-Ethylbutanol
UN2276 2-Ethylhexylamine
UN2277 Ethyl methacrylate
UN2278 n-Heptane
UN2279 Hexachlorobutadiene
UN2280 Hexamethylenediamine, solid
UN2281 Hexamethylene diisocyanate
UN2282 Hexanols
UN2283 Isobutyl methacrylate, inhibited
UN2284 Isobutyronitrile
UN2285 Isocyanatobenzotrifluorides
UN2286 Pentamethylheptane
UN2287 Isoheptenes
UN2288 Isohexenes
UN2289 Isophoronediamine
UN2290 Isophorone diisocyanate
UN2291 Lead compounds, soluble, n.o.s.
UN2293 4-Methoxy-4-methylpentan-2-one
UN2294 N-Methylaniline
UN2295 Methyl chloroacetate
UN2296 Methylcyclohexane
UN2297 Methylcyclohexanone
UN2298 Methylcyclopentane
UN2299 Methyl dichloroacetate
UN2300 2-Methyl-5-ethylpyridine
UN2301 2-Methylfuran
UN2302 5-Methylhexan-2-one
UN2303 Isopropenylbenzene
UN2304 Naphthalene, molten
UN2305 Nitrobenzenesulfonic acid
UN2306 Nitrobenzotrifluorides
UN2307 3-Nitro-4-chlorobenzotrifluoride
UN2308 Nitrosylsulfuric acid
UN2309 Octadiene
UN2310 Pentane-2,4-dione
UN2311 Phenetidines
UN2312 Phenol, molten
UN2313 Picolines
UN2315 Polychlorinated biphenyls, liquid or solid
UN2316 Sodium cuprocyanide, solid
UN2317 Sodium cuprocyanide, solution
UN2318 Sodium hydrosulfide, with less than 25 percent water of crystallization
UN2319 Terpene hydrocarbons, n.o.s.
UN2320 Tetraethylenepentamine
UN2321 Trichlorbenzenes, liquid
UN2322 Trichlorobutene
UN2323 Triethyl phosphite
UN2324 Triisobutylene
UN2325 1,3,5-Trimethylbenzene
UN2326 Trimethylcyclohexylamine
UN2327 Trimethylhexamethylenediamines
UN2328 Trimethylhexamethylene diisocyanate
UN2329 Trimethyl phosphite
UN2330 Undecane
UN2331 Zinc chloride, anhydrous
UN2332 Acetaldehyde oxime
UN2333 Allyl acetate
UN2334 Allylamine
UN2335 Allyl ethyl ether
UN2336 Allyl formate
UN2337 Phenyl mercaptan
UN2338 Benzotrifluoride
UN2339 2-Bromobutane
UN2340 2-Bromoethyl ethyl ether
UN2341 1-Bromo-3-methylbutane
UN2342 Bromomethylpropanes
UN2343 2-Bromopentane
UN2344 Bromopropanes or 2-Bromopropanes
UN2345 3-Bromopropyne
UN2346 Butanedione
UN2347 Butyl mercaptans
UN2348 Butyl acrylates, inhibited
UN2350 Butyl methyl ether
UN2351 Butyl nitrites
UN2352 Butyl vinyl ether, inhibited
UN2353 Butyryl chloride
UN2354 Chloromethyl ethyl ether
UN2356 2-Chloropropane
UN2357 Cyclohexylamine
UN2358 Cyclooctatetraene
UN2359 Diallylamine
UN2360 Diallylether
UN2361 Diisobutylamine
UN2362 1,1-Dichloroethane
UN2363 Ethyl mercaptan
UN2364 n-Propyl benzene
UN2366 Diethyl carbonate
UN2367 alpha-Methylvaleraldehyde
UN2368 alpha-Pinene
UN2370 1-Hexene
UN2371 Isopentenes
UN2372 1,2-Di-(dimethylamino)ethane
UN2373 Diethoxymethane
UN2374 3,3-Diethoxypropene
UN2375 Diethyl sulfide
UN2376 2,3-Dihydropyran
UN2377 1,1-Dimethoxyethane
UN2378 N-Butylaniline or 2-Dimethylaminoacetonitrile
UN2379 1,3-Dimethylbutylamine
UN2380 Dimethyldiethoxysilane
UN2381 Dimethyl disulfide
UN2382 Dimethylhydrazine, symmetrical
UN2383 Dipropylamine
UN2384 Di-n-propyl ether
UN2385 Ethyl isobutyrate
UN2386 1-Ethylpiperidine
UN2387 Fluorobenzene
UN2388 Fluorotoluenes
UN2389 Furan
UN2390 2-Iodobutane
UN2391 Iodomethylpropanes
UN2392 Iodopropanes
UN2393 Isobutyl formate
UN2394 Isobutyl propionate
UN2395 Isobutyryl chloride
UN2396 Methacrylaldehyde, inhibited
UN2397 3-Methylbutan-2-one
UN2398 Methyl tert-butyl ether
UN2399 1-Methylpiperidine
UN2400 Methyl isovalerate
UN2401 Piperidine
UN2402 Propanethiols
UN2403 Isopropenyl acetate
UN2404 Propionitrile
UN2405 Isopropyl butyrate
UN2406 Isopropyl isobutyrate
UN2407 Isopropyl chloroformate
UN2409 Isopropyl propionate
UN2410 1,2,3,6-Tetrahydropyridine
UN2411 Butyronitrile
UN2412 Tetrahydrothiophene
UN2413 Tetrapropylorthotitanate
UN2414 Thiophene
UN2416 Trimethyl borate
UN2417 Carbonyl fluoride, compressed
UN2418 Sulfur tetrafluoride
UN2419 Bromotrifluoroethylene
UN2420 Hexafluoroacetone
UN2421 Nitrogen trioxide
UN2422 Octafluorobut-2-ene or Refrigerant gas R 1318
UN2424 Octafluoropropane or Refrigerant gas R 218
UN2426 Ammonium nitrate, liquid (hot concentrated solution)
UN2427 Potassium chlorate, aqueous solution
UN2428 Sodium chlorate, aqueous solution
UN2429 Calcium chlorate aqueous solution
UN2430 Alkylphenols, solid, n.o.s. (including C2-C12 homologues)
UN2431 Anisidines
UN2432 N,N-Diethylaniline
UN2433 Chloronitrotoluenes liquid or Chloronitrotoluenes solid
UN2434 Dibenzyldichlorosilane
UN2435 Ethylphenyldichlorosilane
UN2436 Thioacetic acid
UN2437 Methylphenyldichlorosilane
UN2438 Trimethylacetyl chloride
UN2439 Sodium hydrogendifluoride, solid or Sodium hydrogendifluoride, solution
UN2440 Stannic chloride, pentahydrate
UN2441 Titanium trichloride, pryophoric or Titanium trichloride mixtures, pyrophoric
UN2442 Trichloroacetyl chloride
UN2443 Vanadium oxytrichloride
UN2444 Vanadium tetrachloride
UN2445 Lithium alkyls
UN2446 Nitrocresols
UN2447 Phosphorus white, molten
NA2448 Sulfur, molten
UN2448 Sulfur, molten
UN2451 Nitrogen trifluoride, compressed
UN2452 Ethylacetylene, inhibited
UN2453 Ethyl fluoride or Refrigerant gas R 161
UN2454 Methyl fluoride, or Refrigerant gas R 41
UN2456 2-Chloropropene
UN2457 2,3-Dimethylbutane
UN2458 Hexadienes
UN2459 2-Methyl-1-butene
UN2460 2-Methyl-2-butene
UN2461 Methylpentadienes
UN2463 Aluminum hydride
UN2464 Beryllium nitrate
UN2465 Dichloroisocyanuric acid, dry or Dichloroisocyanuric acid salts
UN2466 Potassium superoxide
NA2468 mono-(Trichloro) tetra-(monopotassium dichloro)-penta-s-triazinetrione, dry with more than 39 percent available chlorine
UN2468 Trichloroisocyanuric acid, dry
UN2469 Zinc bromate
UN2470 Phenylacetonitrile, liquid
UN2471 Osmium tetroxide
UN2473 Sodium arsanilate
UN2474 Thiophosgene
UN2475 Vanadium trichloride
UN2477 Methyl isothiocyanate
UN2478 Isocyanates, flammable, toxic, n.o.s. or Isocyanate solutions, flammable, toxic, n.o.s. flashpoint less than 23 degrees C
UN2480 Methyl isocyanate
UN2481 Ethyl isocyanate
UN2482 n-Propyl isocyanate
UN2483 Isopropyl isocyanate
UN2484 tert-Butyl isocyanate
UN2485 n-Butyl isocyanate
UN2486 Isobutyl isocyanate
UN2487 Phenyl isocyanate
UN2488 Cyclohexyl isocyanate
UN2490 Dichlorodisopropyl ether
UN2491 Ethanolamine or Ethanolamine solutions
UN2493 Hexamethyleneimine
UN2495 Iodine pentafluoride
UN2496 Propionic anhydride
UN2498 1,2,3,6-Tetrahydrobenzaldehyde
UN2501 Tris-(1-aziridinyl)phosphine oxide, solution
UN2502 Valeryl chloride
UN2503 Zirconium tetrachloride
UN2504 Tetrabromoethane
UN2505 Ammonium fluoride
UN2506 Ammonium hydrogen sulfate
UN2507 Chloroplatinic acid, solid
UN2508 Molybdenum pentachloride
UN2509 Potassium hydrogen sulfate
UN2511 2-Chloropropionic acid
UN2512 Aminophenols (o-; m-; p-)
UN2513 Bromoacetyl bromide
UN2514 Bromobenzene
UN2515 Bromoform
UN2516 Carbon tetrabromide
UN2517 1-Chloro-1,1-difluoroethane or Refrigerant gas R 142b
UN2518 1,5,9-Cyclododecatriene
UN2520 Cyclooctadienes
UN2521 Diketene, inhibited
UN2522 2-Dimethylaminoethyl methacrylate
UN2524 Ethyl orthoformate
UN2525 Ethyl oxalate
UN2526 Furfurylamine
UN2527 Isobutyl acrylate, inhibited
UN2528 Isobutyl isobutyrate
UN2529 Isobutyric acid
UN2530 Isobutyric anhydride
UN2531 Methacrylic acid, inhibited
UN2533 Methyl trichloroacetate
UN2534 Methylchlorosilane
UN2535 4-Methylmorpholine or n-methylmorpholine
UN2536 Methyltetrahydrofuran
UN2538 Nitronaphthalene
UN2541 Terpinolene
UN2542 Tributylamine
UN2545 Hafnium powder, dry
UN2546 Titanium powder, dry
UN2547 Sodium superoxide
UN2548 Chlorine pentafluoride
UN2552 Hexafluoroacetone hydrate
UN2554 Methyl allyl chloride
UN2555 Nitrocellulose with water with not less than 25 percent water, by mass
UN2556 Nitrocellulose, with alcohol with not less than 25 percent alcohol, by mass, and with not more than 12.6 percent nitrogen, by dry mass
UN2557 Nitrocellulose, with not more than 12.6 percent nitrogen, by dry mass, or Nitrocellulose mixture with pigment or Nitrocellulose mixture with plasticizer or Nitrocellulose mixture with pigment and plasticizer
UN2558 Epibromohydrin
UN2560 2-Methylpentan-2-ol
UN2561 3-Methyl-1-butene
UN2564 Trichloroacetic acid, solution
UN2565 Dicyclohexylamine
UN2567 Sodium pentachlorophenate
UN2570 Cadmium compounds
UN2571 Alkylsulfuric acids
UN2572 Phenylhydrazine
UN2573 Thallium chlorate
UN2574 Tricresyl phosphate with more than 3 percent ortho isomer
UN2576 Phosphorus oxybromide, molten
UN2577 Phenylacetyl chloride
UN2578 Phosphorus trioxide
UN2579 Piperazine
UN2580 Aluminum bromide, solution
UN2581 Aluminum chloride, solution
UN2582 Ferric chloride, solution
UN2583 Alkyl sulfonic acids, solid or Aryl sulfonic acids, solid with more than 5 percent free sulfuric acid
NA2584 Dodecylbenzenesulfonic acid
UN2584 Alkyl sulfonic acids, liquid or Aryl sulfonic acids, liquid with more than 5 percent free sulfuric acid
UN2585 Alkyl sulfonic acids, solid or Aryl sulfonic acids, solid with not more than 5 percent free sulfuric acid
UN2586 Alkyl sulfonic acids, liquid or Aryl sulfonic acids, liquid with not more than 5 percent free sulfuric acid
UN2587 Benzoquinone
UN2588 Pesticides, solid, toxic, n.o.s.
UN2589 Vinyl chloroacetate
UN2590 White asbestos (chrysotile, actinolite, anthophyllite, tremolite)
UN2591 Xenon, refrigerated liquid (cryogenic liquids)
UN2599 Chlorotrifluoromethane and trifluoromethane azeotropic mixture or Refrigerant gas R 503 with approximately 60 percent chlorotrifluoromethane
UN2600 Carbon monoxide and hydrogen mixture, compressed
UN2601 Cyclobutane
UN2602 Dichlorodifluoromethane and difluoroethane azeotropic mixture or Refrigerant gas R 500 with approximately 74 percent dichlorodifluoromethane
UN2603 Cycloheptatriene
UN2604 Boron trifluoride diethyl etherate
UN2605 Methoxymethyl isocyanate
UN2606 Methyl orthosilicate
UN2607 Acrolein dimer, stabilized
UN2608 Nitropropanes
UN2609 Triallyl borate
UN2610 Triallylamine
UN2611 Propylene chlorohydrin
UN2612 Methyl propyl ether
UN2614 Methallyl alcohol
UN2615 Ethyl propyl ether
UN2616 Triisopropyl borate
UN2617 Methylcyclohexanols, flammable
UN2618 Vinyltoluenes, inhibited
UN2619 Benzyldimethylamine
UN2620 Amyl butyrates
UN2621 Acetyl methyl carbinol
UN2622 Glycidaldehyde
UN2623 Firelighters, solid with flammable liquid
UN2624 Magnesium silicide
UN2626 Chloric acid aqueous solution, with not more than 10 percent chloric acid
UN2627 Nitrites, inorganic, n.o.s.
UN2628 Potassium fluoroacetate
UN2629 Sodium fluoroacetate
NA2630 Sodium selenite
UN2630 Selenates or Selenites
UN2642 Fluoroacetic acid
UN2643 Methyl bromoacetate
UN2644 Methyl iodide
UN2645 Phenacyl bromide
UN2646 Hexachlorocyclopentadiene
UN2647 Malononitrile
UN2648 1,2-Dibromobutan-3-one
UN2649 1,3-Dichloroacetone
UN2650 1,1-Dichloro-1-nitroethane
UN2651 4,4'-Diaminodiphenyl methane
UN2653 Benzyl iodide
UN2655 Potassium fluorosilicate
UN2656 Quinoline
UN2657 Selenium disulfide
UN2659 Sodium chloroacetate
UN2660 Nitrotoluidines (mono)
UN2661 Hexachloroacetone
UN2662 Hydroquinone
UN2664 Dibromomethane
UN2667 Butyltoluenes
UN2668 Chloroacetonitrile
UN2669 Chlorocresols, liquid or Chlorocresols, solid
UN2670 Cyanuric chloride
UN2671 Aminopyridines (o-; m-; p-)
UN2672 Ammonia solution, relative density between 0.880 and 0.957 at 15 degrees C in water, with more than 10 percent but not more than 35 percent ammonia
UN2673 2-Amino-4-chlorophenol
UN2674 Sodium fluorosilicate
UN2676 Stibine
UN2677 Rubidium hydroxide solution
UN2678 Rubidium hydroxide
UN2679 Lithium hydroxide, solution
UN2680 Lithium hydroxide, monohydrate or Lithium hydroxide, solid
UN2681 Caesium hydroxide solution
UN2682 Caesium hydroxide
UN2683 Ammonium sulfide solution
UN2684 Diethylaminopropylamine
UN2685 N,N-Diethylethylenediamine
UN2686 2-Diethylaminoethanol
UN2687 Dicyclohexylammonium nitrate
UN2688 1-Chloro-3-bromopropane
UN2689 Glycerol alpha-monochlorohydrin
UN2690 N-n-Butyl imidazole
UN2691 Phosphorus pentabromide
UN2692 Boron tribromide
UN2693 Bisulfites, aqueous solutions, n.o.s.
UN2698 Tetrahydrophthalic anhydrides with more than 0.05 percent of maleic anhydride
UN2699 Trifluoroacetic acid
UN2705 1-Pentol
UN2707 Dimethyldioxanes
UN2709 Butyl benzenes
UN2710 Dipropyl ketone
UN2713 Acridine
UN2714 Zinc resinate
UN2715 Aluminum resinate
UN2716 1,4-Butynediol
UN2717 Camphor, synthetic
UN2719 Barium bromate
UN2720 Chromium nitrate
UN2721 Copper chlorate
UN2722 Lithium nitrate
UN2723 Magnesium chlorate
UN2724 Manganese nitrate
UN2725 Nickel nitrate
UN2726 Nickel nitrite
UN2727 Thallium nitrate
UN2728 Zirconium nitrate
UN2729 Hexachlorobenzene
UN2730 Nitroanisole
UN2732 Nitrobromobenzenes liquid or Nitrobromobenzenes solid
UN2733 Amines, flammable, corrosive, n.o.s. or Polyamines, flammable, corrosive, n.o.s.
UN2734 Amines, liquid, corrosive, flammable, n.o.s. or Polyamines, liquid, corrosive, flammable, n.o.s.
UN2735 Amines, liquid, corrosive, n.o.s. or Polyamines, liquid, corrosive, n.o.s.
UN2739 Butyric anhydride
UN2740 n-Propyl chloroformate
UN2741 Barium hypochlorite with more than 22 percent available chlorine
NA2742 sec-Butyl chloroformate or Isobutyl chloroformate
UN2742 Chloroformates, toxic, corrosive, flammable, n.o.s.
UN2743 n-Butyl chloroformate
UN2744 Cyclobutyl chloroformate
UN2745 Chloromethyl chloroformate
UN2746 Phenyl chloroformate
UN2747 tert-Butylcyclohexylchloroformate
UN2748 2-Ethylhexyl chloroformate
UN2749 Tetramethylsilane
UN2750 1,3-Dichloropropanol-2
UN2751 Diethylthiophosphoryl chloride
UN2752 1,2-Epoxy-3-ethoxypropane
UN2753 N-Ethylbenzyltoluidines liquid or N-Ethylbenzyltoluidines solid
UN2754 N-Ethyltoluidines
UN2757 Carbamate pesticides, solid, toxic
UN2758 Carbamate pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C
UN2759 Arsenical pesticides, solid, toxic
UN2760 Arsenical pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C
NA2761 Aldrin, solid or Dieldrin
UN2761 Organochlorine pesticides, solid, toxic
NA2762 Aldrin, liquid
UN2762 Organochlorine pesticides liquid, flammable, toxic, flashpoint less than 23 degrees C
UN2763 Triazine pesticides, solid, toxic
UN2764 Triazine pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C
UN2771 Thiocarbamate pesticides, solid, toxic
UN2772 Thiocarbamate pesticide, liquid, flammable, toxic, flashpoint less than 23 degrees C
UN2775 Copper based pesticides, solid, toxic
UN2776 Copper based pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C
UN2777 Mercury based pesticides, solid, toxic
UN2778 Mercury based pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C
UN2779 Substituted nitrophenol pesticides, solid, toxic
UN2780 Substituted nitrophenol pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C
UN2781 Bipyridilium pesticides, solid, toxic
UN2782 Bipyridilium pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C
NA2783 Methyl parathion solid or Parathion or Tetraethyl pyrophosphate, solid
UN2783 Organophosphorus pesticides, solid, toxic
UN2784 Organophosphorus pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C
UN2785 4-Thiapentanal
UN2786 Organotin pesticides, solid, toxic
UN2787 Organotin pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C
UN2788 Organotin compounds, liquid, n.o.s.
UN2789 Acetic acid, glacial or Acetic acid solution, with more than 80 percent acid, by mass
UN2790 Acetic acid solution, not less than 50 percent but not more than 80 percent acid, by mass or Acetic acid solution, with more than 10 percent and less than 50 percent acid, by mass
UN2793 Ferrous metal borings or Ferrous metal shavings or Ferrous metal turnings or Ferrous metal cuttings in a form liable to self-heating
UN2794 Batteries, wet, filled with acid, electric storage
UN2795 Batteries, wet, filled with acid, electric storage
UN2796 Battery fluid, acid or Sulfuric acid with not more than 51 percent acid
UN2797 Battery fluid, alkali
UN2798 Phenyl phosphorus dichloride
UN2799 Phenyl phosphorus thiodichloride
UN2800 Batteries, wet, non-spillable, electric storage
UN2801 Dyes, liquid, corrosive, n.o.s. or Dye intermediates, liquid, corrosive, n.o.s.
UN2802 Copper chloride
UN2803 Gallium
UN2805 Lithium hydride, fused solid
UN2806 Lithium nitride
UN2809 Mercury or Mercury contained in manufactured articles
UN2810 Toxic, liquids, organic, n.o.s. or Toxic, liquids, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone A or B
NA2811 Selenium oxide
UN2811 Toxic solids, organic, n.o.s.
UN2812 Sodium aluminate, solid
UN2813 Water-reactive solid, n.o.s.
UN2814 Infectious substances, affecting humans only
UN2815 N-Aminoethylpiperazine
UN2817 Ammonium hydrogendiflouride, solution
UN2818 Ammonium polysulfide, solution
UN2819 Amyl acid phosphate
UN2820 Butyric acid
UN2821 Phenol solutions
UN2822 2-Chloropyridine
UN2823 Crotonic acid liquid or Crotonic acid solid
UN2826 Ethyl chlorothioformate
UN2829 Caproic acid
UN2830 Lithium ferrosilicon
UN2831 1,1,1-Trichloroethane
UN2834 Phosphorous acid
UN2835 Sodium aluminum hydride
UN2837 Bisulfate, aqueous solution
UN2838 Vinyl butyrate, inhibited
UN2839 Aldol
UN2840 Butyraldoxime
UN2841 Di-n-amylamine
UN2842 Nitroethane
UN2844 Calcium manganese silicon
NA2845 Ethyl phosphonous dichloride, anhydrous pyrophoric liquid or Methyl phosphonous dichloride, pyrophoric liquid
UN2845 Pyrophoric liquids, organic, n.o.s.
UN2846 Pyrophoric solids, organic, n.o.s.
UN2849 3-Chloropropanol-1
UN2850 Propylene tetramer
UN2851 Boron trifluoride dihydrate
UN2852 Dipicryl sulfide, wetted with not less than 10 percent water, by mass
UN2853 Magnesium fluorosilicate
UN2854 Ammonium fluorosilicate
UN2855 Zinc fluorosilicate
UN2856 Fluorosilicates, n.o.s.
UN2857 Refrigerating machines, containing nonflammable, nontoxic, liquefied gas or ammonia solution (UN2672)
UN2858 Zirconium, dry, coiled wire, finished metal sheets, strip (thinner than 254 microns but not thinner than 18 microns)
UN2859 Ammonium metavanadate
UN2861 Ammonium polyvanadate
UN2862 Vanadium pentoxide, nonfused form
UN2863 Sodium ammonium vanadate
UN2864 Potassium metavanadate
UN2865 Hydroxylamine sulfate
UN2869 Titanium trichloride mixtures
UN2870 Aluminum borohydride or Aluminum borohydride in devices
UN2871 Antimony powder
UN2872 Dibromochloropropane
UN2873 Dibutylaminoethanol
UN2874 Furfuryl alcohol
UN2875 Hexachlorophene
UN2876 Resorcinol
UN2878 Titanium sponge granules or Titanium sponge powders
UN2879 Selenium oxychloride
UN2880 Calcium hypochlorite, hydrated or Calcium hypochlorite, hydrated mixtures, with not less than 5.5 percent but not more than 10 percent water
UN2881 Metal catalyst, dry
UN2900 Infectious substances, affecting animals only
UN2901 Bromine chloride
UN2902 Pesticides, liquid, toxic, n.o.s.
UN2903 Pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C
UN2904 Chlorophenolates, liquid or Phenolates, liquid
UN2905 Chlorophenolates, solid or Phenolates, solid
UN2907 Isosorbide dinitrate mixture with not less than 60 percent lactose, mannose, starch or calcium hydrogen phosphate
UN2910 Radioactive material, excepted package-articles manufactured from natural or depleted uranium or natural thorium or Radioactive material, excepted package-empty package or empty packaging or Radioactive material, excepted package-instruments or articles or Radioactive material, excepted package-limited quantity of material
UN2912 Radioactive material, low specific activity, n.o.s. or Radioactive material, LSA, n.o.s.
UN2913 Radioactive material, surface contaminated object or Radioactive material, SCO
UN2918 Radioactive material, fissile, n.o.s.
NA2920 Dichlorobutene
UN2920 Corrosive liquids, flammable, n.o.s.
UN2921 Corrosive solids, flammable, n.o.s.
NA2922 Sodium hydrosulfide, solution
UN2922 Corrosive liquids, toxic, n.o.s.
UN2923 Corrosive solids, toxic, n.o.s.
UN2924 Flammable liquids, corrosive, n.o.s.
UN2925 Flammable solids, corrosive, organic, n.o.s.
UN2926 Flammable solids, toxic, organic, n.o.s.
NA2927 Ethyl phosphonothioic dichloride, anhydrous or Ethyl phosphorodichloridate
UN2927 Toxic liquids, corrosive, organic, n.o.s. or Toxic liquids, corrosive, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone A or B
UN2928 Toxic solids, corrosive, organic, n.o.s.
UN2929 Toxic liquids, flammable, organic, n.o.s. or Toxic liquids, flammable, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone A or B
UN2930 Toxic solids, flammable, organic, n.o.s.
UN2931 Vanadyl sulfate
UN2933 Methyl 2-chloropropionate
UN2934 Isopropyl 2-chloropropionate
UN2935 Ethyl 2-chloropropionate
UN2936 Thiolactic acid
UN2937 alpha-Methylbenzyl alcohol
UN2940 9-Phosphabicyclonoanes or Cyclooctadiene phosphines
UN2941 Fluoroanilines
UN2942 2-Trifluoromethylaniline
UN2943 Tetrahydrofurfurylamine
UN2945 N-Methylbutylamine
UN2946 2-Amino-5-diethylaminopentane
UN2947 Isopropyl chloroacetate
UN2948 3-Trifluoromethylaniline
UN2949 Sodium hydrosulfide, with not less than 25 percent water of crystallization
UN2950 Magnesium granules, coated particle size not less than 149 microns
UN2956 5-tert-Butyl-2,4,6-trinitro-m-xylene or Musk xylene
UN2965 Boron trifluoride dimethyl etherate
UN2966 Thiogylcol
UN2967 Sulfamic acid
UN2968 Maneb stabilized or Maneb preparations, stabilized against self-heating
UN2969 Castor beans or Castor meal or Castor pomace or Castor flake
UN2974 Radioactive material, special form, n.o.s.
UN2975 Thorium metal, pyrophoric
UN2976 Thorium nitrate, solid
UN2977 Uranium hexafluoride, fissile with more than 1 percent U-235
UN2978 Uranium hexafluoride, fissile excepted or non-fissile
UN2979 Uranium metal, pyrophoric
UN2980 Uranyl nitrate hexahydrate solution
UN2981 Uranyl nitrate, solid
UN2982 Radioactive material, n.o.s.
UN2983 Ethylene oxide and propylene oxide mixtures with not more than 30 percent ethylene oxide
UN2984 Hydrogen peroxide, aqueous solutions with not less than 8 percent but less than 20 percent hydrogen peroxide (stabilized as necessary)
UN2985 Chlorosilanes, flammable, corrosive, n.o.s.
UN2986 Chlorosilanes, corrosive, flammable, n.o.s.
UN2987 Chlorosilanes, corrosive, n.o.s.
UN2988 Chlorosilanes, water-reactive, flammable, corrosive, n.o.s.
UN2989 Lead phosphite, dibasic
UN2990 Life-saving appliances, self-inflating
UN2991 Carbamate pesticide, liquid, toxic, flammable, flashpoint not less than 23 degrees C
UN2992 Carbamate pesticides, liquid, toxic
UN2993 Arsenical pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C
UN2994 Arsenical pesticides, liquid, toxic
UN2995 Organochlorine pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C
UN2996 Organochlorine pesticide, liquid, toxic
UN2997 Triazine pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C
UN2998 Triazine pesticides, liquid, toxic
UN3002 Phenyl urea pesticides, liquid, toxic
UN3005 Thiocarbamate pesticides, liquid, flammable, toxic, flashpoint not less than 23 degrees C
UN3006 Thiocarbamate pesticide, liquid, toxic
UN3009 Copper based pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C
UN3010 Copper based pesticides, liquid, toxic
UN3011 Mercury based pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C
UN3012 Mercury based pesticides, liquid, toxic
UN3013 Substituted nitrophenol pesticides, liquid, toxic flammable flashpoint not less than 23 degrees C
UN3014 Substituted nitrophenol pesticides, liquid, toxic
UN3015 Bipyridilium pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C
UN3016 Bipyridilium pesticides, liquid, toxic
UN3017 Organophosphorus pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C
NA3018 Methyl parathion liquid or Tetraethyl pyrophosphate, liquid
UN3018 Organophosphorus pesticides, liquid, toxic
UN3019 Organotin pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C
UN3020 Organotin pesticides, liquid, toxic
UN3021 Pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C
UN3022 1,2-Butylene oxide, stabilized
UN3023 2-Methyl-2-heptanethiol
UN3024 Coumarin derivative pesticides, liquid, flammable, toxic, flashpoint less than 23 degrees C
UN3025 Coumarin derivative pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C
UN3026 Coumarin derivative pesticides, liquid, toxic
UN3027 Coumarin derivative pesticides, solid, toxic
NA3028 Batteries, dry, containing potassium hydroxide solid, electric, storage
UN3048 Aluminum phosphide pesticides
UN3049 Metal alkyl halides, water-reactive, n.o.s. or Metal aryl halides, water-reactive, n.o.s.
UN3050 Metal alkyl hydrides, water-reactive, n.o.s. or Metal aryl hydrides, water-reactive, n.o.s.
UN3051 Aluminum alkyls
UN3052 Aluminum alkyl halides
UN3053 Magnesium alkyls
UN3054 Cyclohexyl mercaptan
UN3055 2-(2-Aminoethoxy) ethanol
UN3056 n-Heptaldehyde
UN3057 Trifluoroacetyl chloride
UN3064 Nitroglycerin, solution in alcohol, with more than 1 percent but not more than 5 percent nitroglycerin
UN3065 Alcoholic beverages
UN3066 Paint or Paint related material
UN3070 Ethylene oxide and dichlorodifluoromethane mixture with not more than 12.5 percent ethylene oxide
UN3071 Mercaptans, liquid, toxic, flammable, n.o.s. or Mercaptan mixtures, liquid, toxic, flammable, n.o.s., flashpoint not less than 23 degrees C
UN3072 Life-saving appliances, not self-inflating containing dangerous goods as equipment
UN3073 Vinylpyridines, inhibited
UN3076 Aluminum alkyl hydrides
NA3077 Hazardous waste, solid, n.o.s. or Other regulated substances, solid, n.o.s.
UN3077 Environmentally hazardous substances, solid, n.o.s. (not including waste)
UN3078 Cerium, turnings or gritty powder
UN3079 Methacrylonitrile, inhibited
UN3080 Isocyanates, toxic, flammable, n.o.s. or Isocyanate solutions, toxic, flammable, n.o.s. flashpoint not less than 23 degrees C but not more than 61 degrees C and boiling point less than 300 degrees C
NA3082 Hazardous waste, liquid, n.o.s. or Other regulated substances, liquid, n.o.s.
UN3082 Environmentally hazardous substances, liquid, n.o.s. (not including waste)
UN3083 Perchloryl fluoride
UN3084 Corrosive solids, oxidizing, n.o.s.
UN3085 Oxidizing solid, corrosive, n.o.s.
UN3086 Toxic solids, oxidizing, n.o.s.
UN3087 Oxidizing solid, toxic, n.o.s.
UN3088 Self-heating solid, organic, n.o.s.
UN3089 Metal powders, flammable, n.o.s.
UN3090 Lithium battery
UN3091 Lithium batteries packed with equipment
UN3092 1-Methoxy-2-propanol
UN3093 Corrosive liquids, oxidizing, n.o.s.
UN3094 Corrosive liquids, water-reactive, n.o.s.
UN3095 Corrosive solids, self-heating, n.o.s.
UN3096 Corrosive solids, water-reactive, n.o.s.
UN3097 Flammable solid, oxidizing, n.o.s.
UN3098 Oxidizing liquid, corrosive, n.o.s.
UN3099 Oxidizing liquid, toxic, n.o.s.
UN3100 Oxidizing solid, self-heating, n.o.s.
UN3101 Organic peroxide type B, liquid
UN3102 Organic peroxide type B, solid
UN3103 Organic peroxide type C, liquid
UN3104 Organic perixide type C, solid
UN3105 Organic peroxide type D, liquid
UN3106 Organic peroxide type D, solid
UN3107 Organic peroxide type E, liquid
UN3108 Organic peroxide type E, solid
UN3109 Organic peroxide type F, liquid
UN3110 Organic peroxide type F, solid
UN3111 Organic peroxide type B, liquid, temperature controlled
UN3112 Organic peroxide type B, solid, temperature controlled
UN3113 Organic peroxide type C, liquid, temperature controlled
UN3114 Organic peroxide type C, solid, temperature controlled
UN3115 Organic peroxide type D, liquid, temperature controlled
UN3116 Organic peroxide type D, solid, temperature controlled
UN3117 Organic peroxide type E, liquid, temperature controlled
UN3118 Organic peroxide type E, solid, temperature controlled
UN3119 Organic peroxide type F, liquid, temperature controlled
UN3120 Organic peroxide type F, solid, temperature controlled
UN3121 Oxidizing solid, water-reactive, n.o.s.
UN3122 Toxic liquids, oxidizing, n.o.s. or Toxic liquids, oxidizing, n.o.s. Inhalation Hazard, Packing Group I, Zone A or B
UN3123 Toxic liquids, water-reactive, n.o.s. or Toxic liquids, water-reactive, n.o.s. Inhalation Hazard, Packing Group I, Zone A or B
UN3124 Toxic solids, self-heating, n.o.s.
UN3125 Toxic solids, water-reactive, n.o.s.
UN3126 Self-heating solid, corrosive, organic, n.o.s.
UN3127 Self-heating solid, oxidizing, n.o.s.
UN3128 Self-heating solid, toxic, organic, n.o.s.
UN3129 Water-reactive liquid, corrosive, n.o.s.
UN3130 Water-reactive liquid, toxic, n.o.s.
UN3131 Water-reactive solid, corrosive, n.o.s.
UN3132 Water-reactive solid, flammable, n.o.s.
UN3133 Water-reactive solid, oxidixing, n.o.s.
UN3134 Water-reactive solid, toxic, n.o.s.
UN3135 Water-reactive solid, self-heating, n.o.s.
UN3136 Trifluoromethane, refrigerated liquid
UN3137 Oxidizing solid, flammable, n.o.s.
UN3138 Ethylene, acetylene and propylene in mixture, refrigerated liquid with at least 71.5 percent ethylene with not more than 22.5 percent acetylene and not more than 6 percent propylene
UN3139 Oxidizing liquid, n.o.s.
UN3140 Alkaloids, liquid, n.o.s., or Alkaloid salts, liquid, n.o.s.
UN3141 Antimony compounds, inorganic, liquid, n.o.s.
UN3142 Disinfectants, liquid, toxic, n.o.s.
UN3143 Dyes, solid, toxic, n.o.s. or Dye intermediates, solid, toxic, n.o.s.
UN3144 Nicotine compounds, liquid, n.o.s. or Nicotine preparations, liquid, n.o.s.
UN3145 Alkylphenols, liquid, n.o.s. (including C2-C12 homologues)
UN3146 Organotin compounds, solid, n.o.s.
UN3147 Dyes, solid, corrosive, n.o.s. or Dye intermediates, solid, corrosive, n.o.s.
UN3148 Water-reactive liquid, n.o.s.
UN3149 Hydrogen peroxide and peroxyacetic acid mixtures, stabilized with acids, water, and not more than 5 percent peroxyacetic acid
UN3150 Devices, small, hydrocarbon gas powered or Hydrocarbon gas refills for small devices with release device
UN3151 Polyhalogenated biphenyls, liquid or Polyhalogenated terphenyls, liquid
UN3152 Polyhalogenated biphenyls, solid or Polyhalogenated terphenyls, solid
UN3153 Perfluoro(methyl vinyl ether)
UN3154 Perfluoro(ethyl vinyl ether)
UN3155 Pentachlorophenol
UN3156 Compressed gas, oxidizing, n.o.s.
UN3157 Liquefied gas, oxidizing, n.o.s.
UN3158 Gas, refrigerated liquid, n.o.s. (cryogenic liquid)
UN3159 1,1,1,2-Tetrafluoroethane or Refrigerant gas R 134a
UN3160 Liquefied gas, toxic, flammable, n.o.s. Inhalation Hazard Zone A, B, C, or D
UN3161 Liquefied gas, flammable, n.o.s.
UN3162 Liquefied gas, toxic, n.o.s. Inhalation Hazard Zone A, B, C, or D
UN3163 Liquefied gas, n.o.s.
UN3164 Articles, pressurized pneumatic or Hydraulic containing non-flammable gas
UN3165 Aircraft hydraulic power unit fuel tank (containing a mixture of anhydrous hydrazine and monomethyl hydrazine) (M86 fuel)
UN3166 Engines, internal combustion, flammable gas powered or Engines, internal combustion, flammable liquid powered or Engines, internal combustion, flammable liquid powered or Vehicle, flammable gas powered or Vehicle, flammable liquid powered
UN3167 Gas sample, non-pressurized, flammable, n.o.s., not refrigerated liquid
UN3168 Gas sample, non-pressurized, toxic, flammable, n.o.s., not refrigerated liquid
UN3169 Gas sample, non-pressurized, toxic, n.o.s., not refrigerated liquid
UN3170 Aluminum smelting by-products or Aluminum remelting by-products
UN3171 Battery-powered vehicle or Battery-powered equipment
UN3174 Titanium disulphide
UN3175 Solids containing flammable liquid, n.o.s.
UN3176 Flammable solid, organic, molten, n.o.s.
NA3178 Smokeless powder for small arms (100 pounds or less)
UN3178 Flammable solid, inorganic, n.o.s.
UN3179 Flammable solid, toxic, inorganic, n.o.s.
UN3180 Flammable solid, corrosive, inorganic, n.o.s.
UN3181 Metal salts of organic compounds, flammable, n.o.s.
UN3182 Metal hydrides, flammable, n.o.s.
UN3183 Self-heating liquid, organic, n.o.s.
UN3184 Self-heating liquid, toxic, organic, n.o.s.
UN3185 Self-heating liquid, corrosive, organic, n.o.s.
UN3186 Self-heating liquid, inorganic, n.o.s.
UN3187 Self-heating liquid, toxic, inorganic, n.o.s.
UN3188 Self-heating liquid, corrosive, inorganic, n.o.s.
UN3189 Metal powder, self-heating, n.o.s.
UN3190 Self-heating solid, inorganic, n.o.s.
UN3191 Self-heating solid, toxic, inorganic, n.o.s.
UN3192 Self-heating solid, corrosive, inorganic, n.o.s.
UN3194 Pyrophoric liquid, inorganic, n.o.s.
UN3200 Pyrophoric solid, inorganic, n.o.s.
UN3203 Pyrophoric organometallic compound, water-reactive, n.o.s.
UN3205 Alkaline earth metal alcoholates, n.o.s.
UN3206 Alkali metal alcoholates, self-heating, corrosive, n.o.s.
UN3207 Organometallic compound or Compound solution or Compound dispersion, water-reactive, flammable, n.o.s.
UN3208 Metallic substances, water-reactive, n.o.s.
UN3209 Metallic substance, water-reactive, self-heating, n.o.s.
UN3210 Chlorates, inorganic, aqueous solutions, n.o.s.
UN3211 Perchlorates, inorganic, aqueous solution, n.o.s.
UN3212 Hypochlorites, inorganic, n.o.s.
UN3213 Bromates, inorganic, aqueous solution, n.o.s.
UN3214 Permanganates, inorganic, aqueous solution, n.o.s.
UN3215 Persulfates, inorganic, n.o.s.
UN3216 Persulfates, inorganic, aqueous solution, n.o.s.
UN3218 Nitrates, inorganic, aqueous solution, n.o.s.
UN3219 Nitrites, inorganic, aqueous solution, n.o.s.
UN3220 Pentafluoroethane or Refrigerant gas R 125
UN3221 Self-reactive liquid type B
UN3222 Self-reactive solid type B
UN3223 Self-reactive liquid type C
UN3224 Self-reactive solid type C
UN3225 Self-reactive liquid type D
UN3226 Self-reactive solid type D
UN3227 Self-reactive liquid type E
UN3228 Self-reactive solid type E
UN3229 Self-reactive liquid type F
UN3230 Self-reactive solid type F
UN3231 Self-reactive liquid type B, temperature controlled
UN3232 Self-reactive solid type B, temperature controlled
UN3233 Self-reactive liquid type C, temperature controlled
UN3234 Self-reactive solid type C, temperature controlled
UN3235 Self-reactive liquid type D, temperature controlled
UN3236 Self-reactive solid type D, temperature controlled
UN3237 Self-reactive liquid type E, temperature controlled
UN3238 Self-reactive solid type E, temperature controlled
UN3239 Self-reactive liquid type F, temperature controlled
UN3240 Self-reactive solid type F, temperature controlled
UN3241 2-Bromo-2-nitropropane-1,3-diol
UN3242 Azodicarbonamide
UN3243 Solids containing toxic liquid, n.o.s.
UN3244 Solids containing corrosive liquid, n.o.s.
UN3246 Methanesulfonyl chloride
UN3247 Sodium peroxoborate, anhydrous
UN3248 Medicine, liquid, flammable, toxic, n.o.s.
UN3249 Medicine, solid, toxic, n.o.s.
UN3250 Chloroacetic acid, molten
UN3251 Isosorbide-5-mononitrate
UN3252 Difluoromethane or Refrigerant gas R 32
UN3253 Disodium trioxosilicate
UN3254 Tributylphosphane
UN3255 tert-Butyl hypochlorite
UN3256 Elevated temperature liquid, flammable, n.o.s., with flashpoint above 37.8 degrees C, at or above its flashpoint
UN3257 Elevated temperature liquid, n.o.s., at or above 100 degrees C and below its flashpoint (including molten metals, molten salts, etc.)
UN3258 Elevated temperature solid, n.o.s., at or above 240 degrees C, see 49 CFR 173.247(h)(4)
UN3259 Amines, solid, corrosive, n.o.s. or Polyamines, solid, corrosive, n.o.s.
UN3260 Corrosive solid, acidic, inorganic, n.o.s.
UN3261 Corrosive solid, acidic, organic, n.o.s.
UN3262 Corrosive solid, basic, inorganic, n.o.s.
UN3263 Corrosive solid, basic, organic, n.o.s.
UN3264 Corrosive liquid, acidic, inorganic, n.o.s.
UN3265 Corrosive liquid, acidic, organic, n.o.s.
UN3266 Corrosive liquid, basic, inorganic, n.o.s.
UN3267 Corrosive liquid, basic, organic, n.o.s.
UN3268 Air bag inflators, pyrotechnic or Air bag modules, pyrotechnic or Seat-belt pretensioners, pyrotechnic
UN3269 Polyester resin kit
UN3270 Nitrocellulose membrane filters
UN3271 Ethers, n.o.s.
UN3272 Esters, n.o.s.
UN3273 Nitriles, flammable, toxic, n.o.s.
UN3274 Alcoholates solution, n.o.s., in alcohol
UN3275 Nitriles, toxic, flammable, n.o.s.
UN3276 Nitriles, toxic, n.o.s.
UN3277 Chloroformates, toxic, corrosive, n.o.s.
UN3278 Organophosphorus compound, toxic n.o.s.
UN3279 Organophosphorus compound, toxic, flammable, n.o.s.
UN3280 Organoarsenic compound, n.o.s.
UN3281 Metal carbonyls, n.o.s.
UN3282 Organometallic compound, toxic n.o.s.
UN3283 Selenium compound, n.o.s.
UN3284 Tellurium compound, n.o.s.
UN3285 Vanadium compound, n.o.s.
UN3286 Flammable liquid, toxic, corrosive, n.o.s.
UN3287 Toxic liquid, inorganic, n.o.s. or Toxic liquid, inorganic, n.o.s. Inhalation Hazard, Packing Group I, Zone A or B
UN3288 Toxic solid, inorganic, n.o.s.
UN3289 Toxic liquid, corrosive, inorganic, n.o.s. or Toxic liquid, corrosive, inorganic, n.o.s. Inhalation Hazard, Packing Group I, Zone A or B
UN3290 Toxic solid, corrosive, inorganic, n.o.s.
UN3291 Regulated medical waste (sharps) or Regulated medical waste (non-sharps)
UN3292 Batteries, containing sodium or Cells, containing sodium
UN3293 Hydrazine, aqueous solution with not more than 37 percent hydrazine, by mass
UN3294 Hydrogen, cyanide, solution in alcohol with not more than 45 percent hydrogen cyanide
UN3295 Hydrocarbons, liquid, n.o.s.
UN3296 Heptafluoropropane or Refrigerant gas R 227
UN3297 Ethylene oxide and chlorotetrafluoroethane mixture with not more than 8.8 percent ethylene oxide
UN3298 Ethylene oxide and pentafluoroethane mixture with not more than 7.9 percent ethylene oxide
UN3299 Ethylene oxide and tetrafluoroethane mixture with not more than 5.6 percent ethylene oxide
UN3300 Ethylene oxide and carbon dioxide mixtures with more than 87 percent ethylene oxide
UN3301 Corrosive liquids, self-heating, n.o.s.
UN3302 2-Dimethylaminoethyl acrylate
UN3303 Compressed gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone A, B, C, or D
UN3304 Compressed gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D
UN3305 Compressed gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D
UN3306 Compressed gas, toxic, oxidizing, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D
UN3307 Liquefied gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone A, B, C, or D
UN3308 Liquefied gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D
UN3309 Liquefied gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D
UN3310 Liquefied gas, toxic, oxidizing, corrosive, n.o.s. Inhalation Hazard Zone A, B, C, or D
UN3311 Gas, refrigerated liquid, oxidizing, n.o.s. (cryogenic liquid)
UN3312 Gas, refrigerated liquid, flammable, n.o.s. (cryogenic liquid)
UN3313 Organic pigments, self-heating
UN3314 Plastic molding compound in dough, sheet, or extruded rope form evolving flammable vapor
UN3316 Chemical kits or First aid kits (containing hazardous materials)
UN3317 2-Amino-4,6-Dinitrophenol, wetted with not less than 20 percent water by mass
UN3318 Ammonia solution, relative density less than 0.880 at 15 degrees C in water, with more than 50 percent ammonia
UN3319 Nitroglycerin mixture, desensitized, solid, n.o.s. with more than 2 percent but not more than 10 percent nitroglycerin, by mass
UN3320 Sodium borohydride and sodium hydroxide solution, with not more than 12 percent sodium borohydride and not more than 40 percent sodium hydroxide by mass
NA3334 Self-defense spray, non-pressurized
UN3334 Aviation regulated liquid, n.o.s.
UN3335 Aviation regulated solid, n.o.s.
UN3336 Mercaptans, liquid, flammable, n.o.s. or Mercaptan mixture, liquid, flammable, n.o.s.
UN3337 Refrigerant gas R 404A
UN3338 Refrigerant gas R 407A
UN3339 Refrigerant gas R 407B
UN3340 Refrigerant gas R 407C
UN3341 Thiourea dioxide
UN3342 Xanthates
UN3343 Nitroglycerin mixture, desensitized, liquid, flammable, n.o.s. with not more than 30 percent nitroglycerin, by mass
UN3344 Pentaerythrite tetranitrate mixture, desensitized, solid, n.o.s. with more than 10 percent but not more than 20 percent PETN, by mass
UN3345 Phenoxyacetic acid derivative pesticide, solid, toxic
UN3346 Phenoxyacetic acid derivative pesticide, liquid, flammable, toxic flashpoint less than 23 degrees C
UN3347 Phenoxyacetic acid derivative pesticide, liquid, toxic, flammable, flashpoint not less than 23 degrees C
UN3348 Phenoxyacetic acid derivative pesticide, liquid, toxic
UN3349 Pyrethroid pesticide, solid, toxic
UN3350 Pyrethroid pesticide, liquid, flammable, toxic, flashpoint less than 23 degrees C
UN3351 Pyrethroid pesticide, liquid, flammable, toxic, flashpoint less than 23 degrees C
UN3352 Pyrethroid pesticide, liquid, toxic
UN3353 Air bag inflators, compressed gas or Air bag modules, compressed gas or Seat-belt pretensioners, compressed gas
UN3354 Insecticide gases, flammable, n.o.s
UN3355 Insecticide gases, toxic, flammable, n.o.s., Inhalation hazard A, B, C or D
UN3356 Oxygen generator, chemical
NA8001 Dangerous Goods in Machinery or Dangerous Goods in Apparatus
NA9035 Gas identification set
NA9163 Zirconium sulfate
NA9191 Chlorine dioxide, hydrate, frozen
NA9195 Metal alkyl, solution, n.o.s.
NA9202 Carbon monoxide, refrigerated liquid (cryogenic liquid)
NA9206 Methyl phosphonic dichloride
NA9260 Aluminum, molten
NA9263 Chloropivaloyl chloride
NA9264 3,5-Dichloro-2,4,6-trifluoropyridine
NA9269 Trimethoxysilane

Appendix C
USPS Packaging Instructions for Mailable Hazardous Materials
These postal packaging instructions are for mailable types of hazardous materials. The numeric digits 1 through 9 correspond to the appropriate hazard class. The alpha characters differentiate the separate groups of materials within a hazard class. Packaging instruction 10A is for the small quantity provision cited in 334. Postal packaging instructions are provided as follows:
Hazard Class 1: Explosives
* 1A - Toy Propellant Devices
* 1B - Safety Fuses
Hazard Class 2: Gases
* 2A - Flammable Gases
* 2B - Nonflammable Gases
* 2C - Fire Extinguishers
* 2D - Foodstuffs and Soap Products
* 2E - Audible Fire Alarm Systems
* 2F - Biological Products or Medical Preparations
Hazard Class 3: Flammable and Combustible Liquids
* 3A - Flammable Liquids
* 3B - Combustible Liquids
* 3C - Cigarette Lighters
Hazard Class 4: Flammable Solids
* 4A - Flammable Solids
* 4B - Safety Matches
Hazard Class 5: Oxidizing Substances, Organic Peroxides
* 5A - Oxidizing Substances and Organic Peroxides
Hazard Class 6: Toxic Substances and Infectious Substances
* 6A - Toxic Substances
* 6B - Infectious Substances (Etiologic Agents)
* 6C - Clinical (Diagnostic) Specimens and Biological Products
* 6D - Sharps Medical Waste
* 6E - Other Used Medical Devices
* 6F - Toxic Substances with LD50 Oral Toxicity of 50 mg/kg or Less
Hazard Class 7: Radioactive Materials
* 7A - Radioactive Materials
Hazard Class 8: Corrosives
* 8A - Corrosives
* 8B - Nonspillable Wet Battery
Hazard Class 9: Miscellaneous Hazardous Materials
* 9A - Dry Ice (Carbon Dioxide Solid)
* 9B - Magnetized Materials
* 9C - Miscellaneous Hazardous Materials
Category 10: Other Packaging Instructions
* 10A - Small Quantity Provision
USPS Packaging Instruction 1A
Toy Propellant Devices
The proper shipping name for a mailable toy propellant device is "model rocket motor" or igniter." A device that is assigned identification number NA0323 or UN0454 and classed as a Division 1.4S explosive is eligible for mailing in domestic mail via surface transportation only, provided all requirements are met and the device is properly packaged as follows.
Proper Shipping Name and ID Number
* Model Rocket Motors, NA0323
* Igniters, UN0454
Required Authorization
Prior written permission must be obtained from the Manager, Business Mail Acceptance, USPS Headquarters, Washington, DC (see DMM G043 for mailing address).
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted only via surface transportation (i.e., Standard Mail rates) and with prior approval. Each device must meet the specifications in 341.22a.
Design Specifications
Mailable devices must meet each of the following conditions:
* Each device must be ignitable by electrical means only.
* Each device must contain no more than 62.5 g (2.23 oz) of propellant.
* Each device must produce less than 80 newton seconds of total impulse with thrust duration not less than 0.050 second.
* Each device must be constructed so that all chemical ingredients are preloaded into a cylindrical paper or similarly constructed nonmetallic tube that does not fragment into sharp, hard pieces.
* Each device must be designed so that it will not burst under normal conditions.
* Each device must be incapable of spontaneous ignition under 500 degrees F.
* Each device must not contain any type of explosive or pyrotechnic warhead other than a small, activation-charge parachute-recovery system.
Required Packaging
Inner Receptacle
* Each device must be packed in a securely sealed primary receptacle made of fiberboard, wood, or metal.
* Multiple primary receptacles are permitted.
Cushioning Material
* Each primary receptacle must be surrounded by sufficient cushioning material to absorb shock and prevent breakage.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle(s) and cushioning material is required.
* Each mailpiece must not exceed a total weight of 25 pounds.
Marking
* Each outer packaging must be clearly marked on the address side with Toy Propellant Devices" followed by the applicable proper shipping name and UN or NA number. The markings Surface Mail Only" and Handle With Care" must also appear on the address side of the mailpiece. A DOT hazardous materials warning label must not be affixed.
* A complete mailing address and return address must be used.
Documentation
* A properly completed shipper's declaration for dangerous goods prepared in triplicate must be affixed to the outside of the mailpiece.
Note: Full responsibility rests with the mailer to comply with DOT and ATF regulations before mailing.
USPS Packaging Instruction 1B
Safety Fuses
Safety fuses consist of a core of black powder overspun with yarns, waterproofing compounds, and/or tapes. A safety fuse assigned identification number UN0105 and classed as a Division 1.4S explosive may be mailed only as permitted in 341.22b and when properly packaged as follows.
Proper Shipping Name
* Safety Fuses
ID Number
* UN0105
Required Authorization
* Prior written permission must be obtained from the Manager, Business Mail Acceptance, USPS Headquarters, Washington, DC (see DMM G043 for mailing address).
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted only via surface transportation (i.e., Standard Mail rates) and with prior approval.
Required Packaging
Inner Receptacle
* Each device must be packed in a securely sealed primary receptacle.
* Multiple primary receptacles are permitted.
Cushioning Material
* Each primary receptacle must be surrounded by sufficient cushioning material to absorb shock and prevent breakage.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle(s) and cushioning material is required.
* The outer packaging must be made of fiberboard, wood, or metal. Friction closures or paperboard containers are not acceptable.
Marking
* The outside of the mailpiece must be clearly marked on the address side with Safety Fuses, UN0105" and "Surface Mail Only."
* A complete mailing address and return address must be used.
Documentation
* A properly completed shipper's declaration for dangerous goods prepared in triplicate must be affixed to the outside of the mailpiece.
Note: Full responsibility rests with mailer to comply with DOT and ATF regulations before mailing.

USPS Packaging Instruction 2A
Flammable Gases
A Class 2 flammable gas that qualifies as an ORM-D material is mailable provided all applicable requirements in 342 are met and it is properly packaged as follows.
Proper Shipping Name
* Consumer Commodity
ID Number
* Various (see Appendix A)
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted only via surface transportation (i.e., Standard Mail rates).
Required Packaging
Primary Receptacle
* The capacity of an other-than-metal (i.e., nonmetal) primary receptacle must be 4 fluid ounces (7.22 cubic inches) or less per mailpiece.
* The capacity of a metal primary receptacle must be 33.8 fluid ounces (1 liter or 61.0 cubic inches) or less per mailpiece.
* The liquid content of the material and the gas must not completely fill the primary receptacle at 130 degrees F.
* A DOT 2P container must be used if the internal pressure is from 140 psig to 160 psig at 130 degrees F (55 degrees C). A DOT 2Q container must be used if the pressure is from 161 psig to 180 psig at 130 degrees F (55 degrees C).
* A container with an internal pressure more than 180 psig at 130 degrees F (55 degrees C) is prohibited from mailing.
* Primary receptacles must have recessed valves, screw-thread caps, tap closures, or other means to prevent accidental discharge. Valves and fittings must be protected to ensure the integrity of the receptacle during transport.
Cushioning Material
* Sufficient cushioning material must surround the primary receptacle to absorb shock and prevent damage.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle and cushioning material is required.
* Multiple primary receptacles may be securely packed within a single strong outer packaging, provided the total volume of flammable gas does not exceed 33.8 fluid ounces (1 liter) per mailpiece.
Marking
* The address side of the outer packaging must be clearly marked with Surface Mail Only" and "Consumer Commodity ORM-D."
* A complete return address and delivery address must be used.
USPS Packaging Instruction 2B
Nonflammable Gases
A Class 2 nonflammable gas that can qualify as an ORM-D material may be mailed provided all applicable requirements in 342 are met and it is properly packaged as follows.
Proper Shipping Name
* Consumer Commodity
ID Number
* Various (see Appendix A)
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted with restrictions via air transportation (i.e., Express Mail, Priority Mail, or First-Class Mail rates) and surface transportation (i.e., Standard Mail rates).
Required Packaging
Primary Receptacle(s)
* The capacity of an other-than-metal (i.e., nonmetal) primary receptacle must be 4 fluid ounces (7.22 cubic inches) or less per mailpiece.
* The capacity of a metal primary receptacle must be 33.8 fluid ounces (1 liter or 61.0 cubic inches) or less.
* The liquid content of the material and the gas must not completely fill the primary receptacle at 130 degrees F.
* A DOT 2P container must be used if the internal pressure is from 140 psig to 160 psig at 130 degrees F (55 degrees C). A DOT 2Q container must be used if the pressure is from 161 psig to 180 psig at 130 degrees F (55 degrees C).
* A container with an internal pressure more than 180 psig at 130 degrees F (55 degrees C) is prohibited from mailing.
* The primary receptacle(s) must be packaged to protect valves and fittings and to ensure integrity during transport.
* The primary receptacle(s) must have a recessed valve, screw-thread cap, tap closure, or other means to prevent accidental discharge.
Cushioning Material
* Sufficient cushioning material must surround the primary receptacle to absorb shock and prevent damage.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle(s) and cushioning material is required.
* Multiple primary receptacles may be securely packed within a single strong outer packaging up to a weight of 66 pounds (30 kg) per mailpiece.
Marking
* For air transportation, each mailpiece must be clearly marked on the address side with "Consumer Commodity ORM-D AIR."
* For surface transportation, each mailpiece must be clearly marked on the address side with "Surface Mail Only" and "Consumer Commodity ORM-D."
* A complete return address and delivery address must be used.
Documentation
* For air transportation, a mailable nonflammable gas must have a properly completed shipper's declaration for dangerous goods that is prepared in triplicate affixed to the outside of the mailpiece.
USPS Packaging Instruction 2C
Fire Extinguishers
A fire extinguisher containing a Division 2.2 compressed nonflammable gas assigned UN1044 that can qualify as an ORM-D material is mailable if it does not contain a methyl bromide gas mixture or sulfuric acid and if the gas is nonflammable, nonpoisonous, or noncorrosive as specified in 49 CFR 173.309(a). All applicable requirements in 342 must be met, and it must be properly packaged as follows.
Proper Shipping Name
* Consumer Commodity
ID Number
* UN1044
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted via air transportation (i.e., Express Mail, Priority Mail, or First-Class Mail rates) and surface transportation (i.e., Standard Mail rates).
Required Packaging
Primary Receptacle
* The primary receptacle must be a DOT specification 2P or 2Q container that meets the requirements in 49 CFR 173.309(a)(4).
* Only one primary receptacle not exceeding 1 liter (33.8 ounces) is permitted per mailpiece.
Cushioning Material
* Sufficient cushioning material must surround the primary receptacle to absorb shock and prevent damage.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle and cushioning material is required.
Marking
* For air transportation, each mailpiece must be clearly marked on the address side with "Consumer Commodity ORM-D-AIR."
* For surface transportation, each mailpiece must be clearly marked on the address side with "Surface Mail Only" and "Consumer Commodity ORM-D."
* A complete return address and delivery address must be used.
Documentation
* For air transportation, a properly completed shipper's declaration for dangerous goods prepared in triplicate must be affixed to the outside of the mailpiece.
Note: Fire extinguishers assigned UN0275, UN0276, UN0323, and UN0381 are prohibited from mailing. However, fire extinguishers assigned UN1774 are mailable as Class 8 corrosives subject to the limitations for corrosives in 348 and DMM C023.10.0.
USPS Packaging Instruction 2D
Foodstuffs and Soap Products
Foodstuffs and soap products that are held in containers under pressure are mailable in the domestic mail via surface transportation provided they qualify as ORM-D materials and all applicable requirements in 342 are met.
Proper Shipping Name
* Consumer Commodity
ID Number
* Various (see Appendix A)
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted only via surface transportation (i.e., Standard Mail rates).
Required Packaging
Primary Receptacle
* Acceptable only in a nonrefillable metal primary receptacle not exceeding 61.0 cubic inches (1 liter) with soluble or emulsified compressed gas.
* Liquid content of the material and the gas must not completely fill the primary receptacle at 130 degrees F, the pressure in the primary receptacle must be 140 psig or less at 130 degrees F, and the metal primary receptacle must be able to withstand one-and-one-half times the equilibrium pressure of the content at 130 degrees F.
Cushioning Material
* The primary receptacle must be surrounded by sufficient cushioning material to absorb shock and prevent damage.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle and cushioning material is required.
* Multiple primary receptacles may be securely packed within a single outer packaging up to a weight limit of 66 pounds (30 kg) per mailpiece.
Marking
* The address side of each outer packaging must be clearly marked with "Inside Containers Comply with Prescribed Regulations" per 49 CFR 173.306(b)(1).
* Each mailpiece must be clearly marked on the address side with "Surface Mail Only" and "Consumer Commodity ORM-D."
* A complete return address and delivery address must be used.
USPS Packaging Instruction 2E
Audible Fire Alarm Systems
An audible fire alarm system powered by a compressed gas is mailable only in domestic mail via surface transportation provided the system qualifies as an ORM-D material and all applicable requirements in 342 are met.
Proper Shipping Name
* Consumer Commodity
ID Number
* Various (see Appendix A)
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted only via surface transportation (i.e., Standard Mail rates).
Required Packaging
Primary Receptacle
* The content of the primary receptacle is a nonflammable, nonpoisonous, or noncorrosive gas.
* The gas is contained within a metal primary receptacle that has a capacity of 19.3 fluid ounces (35 cubic inches) or less, does not exceed a pressure of 70 psig at 70 degrees F, and is not completely filled at 130 degrees F.
* Each nonrefillable primary receptacle must be designed to withstand a burst pressure of not less than 4 times its charged pressure at 130 degrees F.
* Each refillable primary receptacle must be designed to withstand a burst pressure of not less than 5 times its charged pressure at 130 degrees F.
Cushioning Material
* The primary receptacle must be surrounded by sufficient cushioning material to absorb shock and prevent breakage.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle and cushioning is required.
* Multiple primary receptacles may be securely packed within a single outer packaging up to a weight limit of 66 pounds (30 kg) per mailpiece.
Marking
* Each mailpiece must be clearly marked on the address side with Surface Mail Only" and "Consumer Commodity ORM-D."
* A complete return address and delivery address must be used.
USPS Packaging Instruction 2F
Biological Products or Medical Preparations
A product or preparation in a nonrefillable metal primary receptacle charged with a nonflammable solution containing biological products or a medical preparation that could deteriorate by heat may be accepted in the domestic mail via surface transportation only provided the item qualifies as an ORM-D material and all applicable requirements in 342 are met.
Proper Shipping Name
* Consumer Commodity
ID Number
* Various (see Appendix A)
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted only via surface transportation (i.e., Standard Mail rates).
Packaging Requirements
Primary Receptacle
* Capacity of the primary receptacle must be 19.3 fluid ounces (35 cubic inches) or less, pressure in the primary receptacle must be 140 psig or less at 130 degrees F, and the liquid content of product and gas must not completely fill the container at 130 degrees F.
* If heated until the pressure in the primary receptacle is equivalent to equilibrium pressure of content at 130 degrees F, the primary receptacle must be able to withstand leakage, distortion, or other damage or defects.
* Only one primary receptacle is permitted per mailpiece.
Cushioning Material
* The primary receptacle must be surrounded by sufficient cushioning material to absorb shock and prevent breakage.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle and cushioning is required.
* Multiple primary receptacles are not permitted.
Marking
* Each mailpiece must be clearly marked on the address side with "Surface Mail Only" and "Consumer Commodity ORM-D."
* A complete return address and delivery address must be used.
USPS Packaging Instruction 3A
Flammable Liquids
A flammable liquid having a flashpoint greater than 20 degrees F (-7 degrees C) but less than 100 degrees F (38 degrees C) is mailable in domestic mail via surface transportation if the liquid can qualify as an ORM-D material and all applicable requirements in 343 are met.
Proper Shipping Name
* Consumer Commodity
ID Number
* Various (see Appendix A)
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted only via surface transportation (i.e., Standard Mail rates).
Required Packaging
Separate packaging requirements apply depending on the flashpoint of the flammable liquid.
For flashpoint greater than 20 degrees F (-7 degrees C) but not more than 73 degrees F (23 degrees C):
Primary Receptacle
* A metal primary receptacle must not exceed 1 quart.
* A nonmetal primary receptacle must not exceed 1 pint.
* The primary receptacle must have a screw cap (with minimum of one-and-one-half turns), soldering clips, or other means of secure closure (friction tops are not acceptable).
* Only one primary receptacle is permitted per mailpiece.
Cushioning Material and Secondary Packaging
* Enough cushioning material must surround the primary receptacle to prevent breakage and absorb any potential leakage.
* The cushioning and primary receptacle must be packed in a securely sealed secondary packaging.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle, cushioning material, and secondary packaging is required.
Marking
* Each mailpiece must be clearly marked on the address side with "Surface Mail Only," "Consumer Commodity ORM-D," and the flashpoint of the flammable liquid.
* A complete return address and delivery address must be used.
For flashpoint greater than 73 degrees F (23 degrees C) but less than 100 degrees F (38 degrees C):
Primary Receptacle
* A metal primary receptacle must not exceed 1 gallon.
* Only one primary receptacle is permitted per mailpiece.
Cushioning Material and Secondary Packaging
* Enough cushioning material must surround the primary receptacle to prevent breakage and absorb any potential leakage.
* The cushioning and primary receptacle must be packed in a securely sealed secondary packaging.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle, cushioning material, and secondary packaging is required.
Marking
* Each mailpiece must be clearly marked on the address side with "Surface Mail Only," "Consumer Commodity ORM-D," and the flashpoint of the flammable liquid.
* A complete return address and delivery address must be used.
For flashpoint of at least 100 degrees F (38 degrees C) but not more than 141 degrees F (60.5 degrees C):
* Use Packaging Instruction 3B.
USPS Packaging Instruction 3B
Combustible Liquids
A combustible liquid having a flashpoint of 141 degrees F (60.5 degrees C) but no more than 200 degrees F (93 degrees C) is mailable if it can qualify as an ORM-D material and meet all applicable requirements in 343. A flammable liquid having a flashpoint of at least 100 degrees F (60.5 degrees C) but not more than 141 degrees F (60.5 degrees C) may be reclassed as a combustible liquid within the limits of 49 CFR 173.120(b).
Proper Shipping Name
* Consumer Commodity
ID Number
* Various (see Appendix A)
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted via air transportation (i.e., Express Mail, Priority Mail, or First-Class Mail rates) only when the flashpoint is above 141 degrees F (60.5 degrees C) and via surface transportation (i.e., Standard Mail rates).
Required Packaging
Separate packaging requirements apply depending on the flashpoint of the combustible liquid.
For flashpoint of at least 100 degrees F (38 degrees C) but not more than 141 degrees F (60.5 degrees C):
General
* Permitted only in domestic mail via surface transportation.
Primary Receptacle
* The capacity of a metal primary receptacle must not exceed 1 gallon.
* Only one primary receptacle is permitted per mailpiece.
Absorbent and Cushioning Material
* Enough absorbent and cushioning material must surround the primary receptacle to prevent breakage and absorb any potential leakage.
Secondary Packaging
* The cushioning and primary receptacle must be packed in a securely sealed secondary packaging.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle, cushioning material, and secondary packaging is required.
Marking
* Each mailpiece must be clearly marked on the address side with "Consumer Commodity ORM-D" and the flashpoint of the liquid.
* A complete return address and delivery address must be used.
Documentation
* For air transportation, a properly prepared shipper's declaration for dangerous goods must be prepared in triplicate and affixed to the outside of the mailpiece.
For flashpoint above 141 degrees F (60.5 degrees C) but not more than 200 degrees F (93 degrees C):
General
* Permitted in domestic mail via air or surface transportation.
Primary Receptacle
* The capacity of the primary receptacle must not exceed 1 gallon.
* Only one primary receptacle is permitted per mailpiece.
Absorbent and Cushioning Material
* Enough absorbent and cushioning material must surround the primary receptacle to prevent breakage and absorb all potential leakage.
Secondary Packaging
* The cushioning and primary receptacle must be packed in a securely sealed secondary packaging.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle, cushioning material, and secondary packaging is required.
Marking
* For air transportation, each mailpiece must be clearly marked on the address side with "Consumer Commodity ORM-D AIR" and the flashpoint of the liquid.
* For surface transportation, each mailpiece must be clearly marked on the address side with "Surface Mail Only," "Consumer Commodity ORM-D," and the flashpoint of the liquid.
* A complete return address and delivery address must be used.
Documentation
* For air transportation, a properly completed shipper's declaration for dangerous goods must be prepared in triplicate and affixed to the outside of the mailpiece.
For flashpoint above 200 degrees F (93 degrees C):
General
* Permitted in domestic mail via air or surface transportation without restriction when properly packaged to prevent leakage during transport.
Primary Receptacle
* Each primary receptacle must be sturdy and have a secure method of closure.
* Multiple primary receptacles may be enclosed within a single mailpiece.
Absorbent and Cushioning Material
* Enough absorbent and cushioning material must surround the primary receptacle to prevent breakage and absorb all potential leakage.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle and cushioning material is required.
Marking
* A complete return address and delivery address must be used.
USPS Packaging Instruction 3C
Cigarette Lighters
A cigarette lighter equipped with an ignition element and containing fuel is classified as a Class 3 flammable liquid. A cigarette lighter containing a flammable gas is classed as a Division 2.1 flammable gas. A cigarette lighter that contains either flammable liquid or flammable gas is permitted in domestic mail via surface transportation only with prior written approval, provided all applicable requirements in 343.25 are met.
Proper Shipping Name and ID Number
* Lighter, UN1057
* Lighter for Cigarettes, NA1226
Required Authorization
* The design of the lighter and its packaging must be approved by the DOT Associate Administrator for Hazardous Material Safety, per 49 CFR 173.21(i) and 173.308, and a DOT Approval Number (T-Number) must have been issued. Prior to mailing, the mailer must request and obtain written approval from the appropriate RCSC manager. (See 343.25 and DMM C023.4.4.)
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted only via surface transportation (i.e., Standard Mail rates).
Required Packaging
Inner Receptacle
* The design of the lighter must be approved by DOT (see "Required Authorization" above).
Cushioning Material
* Sufficient cushioning material must be used to absorb shock and protect the lighter from breakage.
Outer Packaging
* The packaging must be designed to protect the lighter's sparking mechanism from accidental ignition caused by friction or external pressure during transport.
* The outer packaging must be of sufficient strength to prevent the inner contents from breaking or bursting through.
Marking
* The address side of each mailpiece must be clearly marked with "Surface Mail only" and "Lighter for Cigarette" followed by the T-Number.
* A complete return address and delivery address must be used.
Note: A legible photocopy of the RCSC manager's approval letter must accompany the mailing at the time of deposit.
USPS Packaging Instruction 4A
Flammable Solids
A flammable solid that can qualify as an ORM-D material is permitted in the domestic mail via surface transportation only, provided all applicable requirements in 344 are met.
Proper Shipping Name
* Consumer Commodity
ID Number
* Various (see Appendix A)
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted only via surface transportation (i.e., Standard Mail rates).
Required Packaging
Primary Receptacle
* The primary receptacle must have a secure seal and together with its contents must not exceed a weight of 1 pound.
* Multiple primary receptacles are permitted.
Cushioning Material
* Sufficient cushioning material must be used to absorb shock and the primary receptacle from breakage.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle and cushioning material is required.
* Each mailpiece must not exceed a total weight of 25 pounds.
Marking
* Each mailpiece must be clearly marked on the address side with "Surface Mail Only" and "Consumer Commodity ORM-D."
* A complete return address and delivery address must be used.
USPS Packaging Instruction 4B
Safety Matches
Safety matches (book, card, or strike-on-box) may be mailed only in domestic mail via surface transportation, provided all applicable requirements in 344 are met.
Proper Shipping Name
* Matches, Safety
ID Number
* UN1944
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted only via surface transportation (i.e., Standard Mail rates).
Required Packaging
Primary Receptacle
* Mailable types of safety matches must be tightly packed in a securely sealed inner receptacle to prevent any shifting or movement that could cause accidental ignition by rubbing against adjoining items.
* Multiple inner receptacles are permitted.
Outer Packaging
* The outer packaging material must be made of fiberboard, wood, or other equivalent and be strong enough to prevent the inner contents from bursting through.
* The inner contents must be snugly packed within the outer packaging.
* Each mailpiece must not exceed a total weight of 50 pounds.
Marking
* The address side of each mailpiece must be clearly marked "Surface Mail Only" and either "Book Matches," Card Matches," or "Strike-on-Box Matches," as applicable.
* A complete return address and delivery address must be used.
Documentation
* A shipping paper is required.
Note: Strike-anywhere matches assigned UN1331 and other types of matches assigned UN2254 or UN1945 are nonmailable.
USPS Packaging Instruction 5A
Oxidizing Substances, Organic Peroxides
An oxidizing substance or an organic peroxide that can qualify as an ORM-D material is permitted in the domestic mail provided all applicable requirements in 345 are met.
Proper Shipping Name
* Consumer Commodity
ID Number
* Various (see Appendix A)
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted via air transportation (i.e., Express Mail, Priority Mail, and First-Class Mail rates) or surface transportation (i.e., Standard Mail rates).
Required Packaging
Primary Receptacle
* For liquids, the capacity of the primary receptacle must not exceed 1 liter (0.3 gallon).
* For solids, the weight of the contents of the primary receptacle must not exceed 1 kg (2.2 pounds).
* Multiple primary receptacles are permitted up to a total weight of 25 pounds per mailpiece.
Absorbent and Cushioning Material
* Enough absorbent and cushioning material must surround the primary receptacle to prevent breakage and absorb all potential leakage.
Secondary Packaging
* For liquids only, the cushioning and primary receptacle must be packed in a secondary leak-resistant packaging or material that is securely sealed.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle and cushioning material is required.
* Each mailpiece must not exceed a total weight of 25 pounds.
Marking
* For air transportation, each mailpiece must be clearly marked on the address side with "Consumer Commodity ORM-D AIR."
* For surface transportation, each mailpiece must be clearly marked on the address side with "Surface Mail Only" and "Consumer Commodity ORM-D."
* A complete return address and delivery address must be used.
Documentation
* For air transportation, a mailable material must have a properly completed shipper's declaration for dangerous goods that is prepared in triplicate affixed to the outside of the mailpiece.
USPS Packaging Instruction 6A
Toxic Substances
A Division 6.1 toxic substance that qualifies as an ORM-D material is permitted in the domestic mail via air or surface transportation when all applicable requirements in 346 are met.
Proper Shipping Name
* Consumer Commodity
ID Number
* Various (see Appendix A)
Mailability
* International Mail: Prohibited.
* Domestic Mail: Permitted via air transportation (i.e., Express Mail, Priority Mail, and First-Class Mail rates) or surface transportation (i.e., Standard Mail rates).
Required Packaging
Primary Receptacle
* The primary container must be of sufficient strength and have a secure method of closure.
* The capacity of the primary receptacle must not exceed 8 ounces.
Absorbent and Cushioning Material
* Enough absorbent and cushioning material must surround the primary receptacle to prevent breakage and absorb all potential leakage.
Outer Packaging
* A strong outer packaging that is capable of firmly and securely holding the primary receptacle and cushioning material is required.
* The inner receptacle and cushioning material must fit snugly within the outer packaging.
Marking
* For air transportation, each mailpiece must be clearly marked on the address side with "Consumer Commodity ORM-D AIR."
* For surface transportation, each mailpiece must be clearly marked on the address side with "Surface Mail Only" and "Consumer Commodity ORM-D."
* A complete return address and delivery address must be used.
Documentation
* For air transportation, a mailable material must have a properly completed shipper's declaration for dangerous goods that is prepared in triplicate affixed to the outside of the mailpiece.
USPS Packaging Instruction 6B
Infectious Substances (Etiologic Agents)
Infectious substances (etiologic agents) in Division 6.2 that are known or reasonably believed to contain an etiologic agent are mailable only when all applicable requirements in 346 and DMM C023.8.0 are met.
Proper Shipping Name and ID Number
* Infectious Substances Affecting Animals, UN2900
* Infectious Substances Affecting Humans, UN2814
Mailability
* International Mail: Only as permitted in 622.2 and IMM 135 when written approval has been granted prior to mailing.
* Domestic Mail: Only via Express Mail, Priority Mail, or First-Class Mail service. Etiologic agents listed in 42 CFR 72.3(f) must be sent registered mail service.
Required Packaging
Separate conditions apply to domestic mail and international mail as noted.
For Domestic Mail:
Primary Receptacle
* The primary receptacle must be a securely sealed and watertight container (i.e., test tube, vial).
* The primary receptacle (or the secondary packaging) must be capable of withstanding, without leakage, an internal pressure that produces a pressure differential of not less than 14 psi (95 kPa) and a temperature in the range of -40 degrees F to 131 degrees F (-40 degrees C to 55 degrees C) as required by 49 CFR 173.196.
* Multiple primary receptacles are permitted provided the total liquid volume of the infectious substance in all enclosed primary receptacles does not exceed 50 ml (1.66 ounces) per mailpiece.
Cushioning and Absorbent Material
* Enough cushioning material must surround the primary receptacle to absorb shocks and prevent breakage.
* The space between the primary receptacle(s) and the secondary packaging at the top, bottom, and sides must contain enough material to absorb the entire contents of the primary receptacle(s) in case of breakage or leakage.
Secondary Packaging
* The secondary packaging must be constructed of a durable and watertight material and have a secure sealing method.
* The secondary packaging must be capable of withstanding, without leakage, an internal pressure that produces a differential of not less than 14 psi (95 kPa) and a temperature in the range of -40 degrees F to 131 degrees F (-40 degrees C to 55 degrees C), as required by 49 CFR 173.196.
Outer Packaging
* Proper UN specification packaging must be used.
* The primary receptacle(s) and the secondary packaging must be enclosed in a strong outer packaging constructed of fiberboard or other equivalent material.
* No external surface of the outer packaging may be less than 3.9 inches wide (100 mm) as required by 49 CFR 173.196.
* Each mailpiece must be designed and constructed so that, if it were subject to the environmental and test conditions in 49 CFR 178.609, there would be no release of the contents to the environment and no significant reduction in the effectiveness of the packaging.
Marking
* The address side of the mailpiece must bear the "Etiologic Agents/Biohazard Material" label required by 42 CFR 73.2(d) (see Exhibit 346.42a).
* Each mailpiece must bear a DOT Hazard Class 6 warning label for infectious substances (see Exhibit 325b.)
* Each mailpiece must be clearly marked on the address side with the proper shipping name and UN number, which is "Infectious Substances Affecting Animals, UN2900" or "Infectious Substances Affecting Humans, UN2814," as applicable.
* Orientation markings (see Exhibit 226) that properly indicate the upright position of the primary receptacle(s) must be displayed on two opposite outer side walls of the mailpiece.
* Each mailpiece must bear a complete return address and delivery address.
Documentation
* Each mailable material must have a properly completed shipper's declaration for dangerous goods that is prepared in triplicate and affixed to the outside of the mailpiece.
For International Mail:
* The requirements specified in 622.2 and IMM 135 apply in addition to the packaging instructions for domestic mail.
Note: Articles that include dry ice as a refrigerant for the infectious substance must meet the requirements of 42 CFR 72.3(c) and 49 CFR 173.196(e)(2)(ii). Additionally, the dry ice must be placed outside the secondary container. It must never be placed inside a sealed container. When dry ice is placed between the secondary container and the outer shipping container, the shock-absorbent material must be placed in such a way that the secondary container does not become loose inside the outer container as the dry ice dissipates.