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Extremely Hazardous Substances: Federal Register: EPA
[Federal Register: May 7, 1996 (Volume 61, Number 89)] [Rules and Regulations]
[Page 20473-20490]
>From the Federal Register Online via GPO Access [wais.access.gpo.gov]
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 355[Docket 300 PQ-R2; FRL-5468-5]
RIN 2050-AD50Extremely Hazardous Substances
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
SUMMARY: Today, EPA is implementing one of its regulatory reform commitments set forth in its June 1, 1995, Report to the President. EPA is taking final action on two proposed rules that modify the extremely hazardous substances (EHS) list and reportable quantities under section 302 of the Emergency Planning and Community Right-to-Know Act of 1986
[[Page 20474]]
(EPCRA), Title III of the Superfund Amendments and Reauthorization Act of 1986. EPA is raising the statutory reportable quantities (RQs) for 202 EHSs. EPA is also removing four chemicals that do not meet the listing criteria from the EHS list. Through these actions, the Agency is reducing the burden of reporting for facilities presently required to report certain releases unnecessarily. Protection of human health and the environment is maintained while better focusing attention on releases that may require a response by state and/or local authorities.
EFFECTIVE DATE: July 8, 1996.
ADDRESSES:
Docket: Copies of materials relevant to this rulemaking are contained in the U.S. Environmental Protection Agency CERCLA Docket Office, Crystal Gateway #1, 1st Floor, 1235 Jefferson Davis Highway, Arlington, VA 22202 [Docket Number 300 PQ-R2]. The docket is available for inspection between the hours of 9 a.m. and 4 p.m., Monday through Friday, excluding Federal holidays. Appointments to review the docket can be made by calling 703/603-9232. The public may copy a maximum of 266 pages from any regulatory docket at no cost. If the number of pages copied exceeds 266, however, an administrative fee of $25 and a charge of $0.15 per page for each page after page 266 will be incurred. The docket will mail copies of materials to requestors who are outside of the Washington, DC metropolitan area.FOR FURTHER INFORMATION CONTACT: The RCRA/UST, Superfund, and EPCRA Hotline at 800/424-9346 (in the Washington, DC metropolitan area, contact 703/486-3323). The Telecommunications Device for the Deaf (TDD) Hotline number is 800/553-7672 (in the Washington, DC metropolitan area, contact 703/412-9810); or John Ferris, Chemical Engineer, Chemical Emergency Preparedness and Prevention Office (5101), U.S. Environmental Protection Agency, 401 M Street S.W., Washington, DC 20460, or at (202) 260-4043.
SUPPLEMENTARY INFORMATION:
Regulated entities. Regulated categories and entities include:
Category Regulated entities
Industry.............................. All facilities handlingchemicals on the extremely hazardous substances list may be subject to this regulation.Federal Government.................... Executive Order 12856 requiresall federal agencies to comply with sections 302 and 304 of EPCRA.State and Local Governments........... State emergency responsecommissions and local emergency planning committees receive the information provided under EPCRA section 304. State/local government facilities handling chemicals on the extremely hazardous substances list may be subject to this regulation.
This table is not intended to be exhaustive, but rather provide a guide for readers regarding entities likely to be regulated by this action. To determine whether your facility is regulated by this action, you should carefully examine the applicability criteria in section 355.40 of title 40 of the Code of Federal Regulations. If you have questions regarding the applicability of this action to a particular entity, consult the person listed in the preceding FOR FURTHER INFORMATION CONTACT section.
Contents: The contents of today's preamble are listed in the following outline:I. Introduction
a. Statutory Authority
b. Background
c. Today's Rulemaking
II. RQ Adjustment Methodology
a. TPQ methodology
b. CERCLA RQ methodology
c. Proposed methodology
d. Alternative chosen
III. Response to Comments on the August 30, 1989 Proposal a. Reportable Quantities and Threshold Planning Quantities b. Sulfur Dioxide
c. Hydrogen Chloride/Hydrochloric Acid d. Sulfur Trioxide
IV. Listing Corrections
V. Response to Comments on the October 12, 1994 Proposal VI. Regulatory Analysis
a. Executive Order 12866
b. Regulatory Flexibility Act
c. Paperwork Reduction Act
d. Unfunded MandatesI. Introduction
a. Statutory Authority
This regulation is issued under sections 302, 304 and 328 of the Emergency Planning and Community Right-to-Know Act (EPCRA).
b. Background
On October 17, 1986, the President signed into law the Superfund Amendments and Reauthorization Act of 1986 (SARA), Pub. L. 99-499 (1986). Title III of SARA, the Emergency Planning and Community Rightto -Know Act of 1986 (EPCRA), established a program designed to encourage state and local planning and preparedness for spills or releases of extremely hazardous substances and to provide the public and local governments with information concerning chemical releases and the potential chemical risks in their communities. Subtitle A of the Act establishes the framework for local emergency planning. Under section 302, a facility which has present an extremely hazardous substance (EHS) in excess of its threshold planning quantity (TPQ) must notify its state emergency response commission (SERC) and participate, as necessary, with the local emergency planning committee (LEPC) in the local emergency planning process. Section 302 directed EPA to publish the list of extremely hazardous substances as an interim final rule within 30 days of the enactment of EPCRA. Section 302(a)(2) required that the list be identical to the list compiled by EPA in 1985 as part of EPA's Chemical Emergency Preparedness Program. Under section 302(a)(4), EPA is authorized to revise the list, but in undertaking any such revision, EPA must take into account the ``toxicity, reactivity, volatility, dispersibility, combustibility, or flammability of a substance.'' The term ``toxicity'' is defined to include ``any short- or long-term health effects which may result from a short-term exposure to the substance.'' EPA published the list of 402 extremely hazardous substances on November 17, 1986 (51 FR 41570). On the same day, EPA proposed the deletion of 40 substances from the EHS list on the basis that their original listing was in error. On April 22, 1987, 52 FR 13388, EPA announced that it was deferring the proposed delisting of these substances, pending an evaluation of the long-term effects from shortterm exposure to each of them. This deferral was in response to comments from members of the public who argued that the proposed rule was premature. On November 23, 1987, the District Court for the District of Columbia in A.L. Laboratories, Inc. v. Environmental Protection Agency issued an order requiring EPA to remove several substances from the EHS list, reasoning that Congress did not intend to include in the statutorily designated list substances listed due to ``clerical error.''
[[Page 20475]]
It is on the basis of this ruling that EPA proposed on October 12, 1994 (59 FR 51816), the removal of four chemicals. Section 304 of EPCRA establishes requirements for immediate reporting of certain releases of EHSs and hazardous substances (HSs) listed under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) to SERCs and LEPCs, similar to the release reporting provisions of CERCLA section 103. Although similar, CERCLA section 103 and EPCRA section 304 differ somewhat in purpose. CERCLA provides generally for federal planning and coordination of entities and for federal contingency plans. CERCLA section 103 requires federal notification for any release of a hazardous substance in an amount equal to or in excess of its RQ. EPCRA is designed to protect the public in the event of dangerous chemical releases through the establishment of local and state emergency response capability. EPCRA section 304 requires, in addition to any federal notification, notification to state and local authorities for any release of an EHS in an amount equal to or in excess of its RQ. The potential hazards posed by EHSs make state and local notification critical to effective and timely emergency response. EHSs are acutely toxic chemicals which cause both severe sort- and long-term health effects after a single, brief exposure. In many cases, local and state authorities may be the first and only responders to the release of an EHS. Notifications are required if a release of an EHS or HS is equal to or above the reportable quantity (RQ). Section 304(a) of EPCRA provides that chemicals on the EHS list which do not have an RQ assigned to them by regulation, will have a reportable quantity of 1 pound. Currently, 204 EHSs have the statutory one-pound RQ. On August 30, 1989 (54 FR 35988), EPA proposed to modify the statutory RQs for 232 EHSs using a proposed modification of the CERCLA RQ methodology.
c. Today's Rulemaking
EPA is today taking final action on the two proposed rules published in the Federal Register on August 30, 1989 and October 12, 1994. As discussed below, EPA is not yet taking final action on some aspects of the proposed rules. EPA is adjusting the reportable quantities of 204 extremely hazardous substances.\1\ This rule will make the reportable quantities for these chemicals the same as their threshold planning quantities. EPA is also finalizing the proposal to remove phosphorus pentoxide, diethylcarbamazine citrate, fenitrothion and tellurium from the EHS list.
\1\ Although a total of 215 EHSs have one-pound statutory RQs, this rule is adjusting the RQs of 204 of these EHSs. The remaining 11 EHSs with one-pound statutory RQs were designated CERCLA hazardous substances in a February 9, 1995 final rule (60 FR 7824); the Agency is currently developing a rulemaking to adjust the CERCLA and EPCRA one-pound RQs for these 11 substances. The substances are identified in 40 CFR Part 355 by the footnote ``d.''
On August 30, 1989, EPA proposed the adjustment of the TPQ for isophorone diisocyanate. Today's rule reflects the current TPQ for isophorone diisocyanate. However, an adjusted TPQ and RQ will be published in a future notice.
II. RQ Adjustment Methodologies
a. TPQ Methodology
EPA's methodology for establishing threshold planning quantities for EHSs under EPCRA consists of initially determining the minimum short term exposure concentration in air that would lead to serious irreversible health effects in the general population when exposed to the substance for relatively short duration. This is the so-called ``level of concern.'' (See the Threshold Planning Quantities Technical Support Document, April 7, 1987.)
There are two ways to determine a ``level of concern.'' If it is available for a chemical, EPA may use one-tenth of the Immediately Dangerous to Life and Health (IDLH) level established by the National Institute for Occupational Safety and Health (NIOSH). The IDLH is the maximum concentration of a substance in air to which a healthy worker can be exposed for 30 minutes and escape without suffering irreversible health effects or impairing symptoms. If the IDLH value is not available, as is the case for most of the EHSs, EPA determines an IDLH equivalent value using available toxicity data with an adjustment factor.
The level of concern is then divided by a factor ``V'' which represents the extent to which the material can volatilize and become airborne and dispersed. This approach is explained in the November 17, 1986 Federal Register notice (51 FR 41580). Dividing the level of concern by ``V'' provides the index value for an EHS. The final threshold planning quantity is then determined by a relative ranking of the index values for all of the chemicals on the EHS list. The index values and their corresponding threshold planning quantities are found in the Threshold Planning Quantity Technical Support Document. This approach is generally based on the quantity of the chemical which when released will generate the level of concern at a distance of 100 meters.b. CERCLA RQ Methodology
The CERCLA RQ methodology uses a two step process to determine the possibility of harm from the release of a hazardous substance. The methodology begins with an evaluation of six intrinsic physical, chemical, and toxicological properties associated with each hazardous substance. These properties are known as the ``primary criteria.'' Each substance is evaluated according to the applicable ``primary criteria,'' and an RQ value is determined for each applicable criterion. The ``primary criteria'' RQ for each hazardous substance is the lowest value of all the applicable criteria. For example, if the Agency evaluates hazardous substance A under the RQ adjustment methodology, identifies both aquatic toxicity and mammalian toxicity data on the substance, and sets a tentative RQ of 100 pounds on the basis of aquatic toxicity and 1000 pounds on the basis of mammalian toxicity, the 100 pound value will be the applicable ``primary criteria'' RQ. Upon completion of the evaluation of the ``primary criteria'' RQ, secondary adjustment criteria based on the natural degradation processes of BHP (biodegradation, hydrolysis, and photolysis) are assessed. If a hazardous substance, when released into the environment, degrades (within 5 days) to a less hazardous form by one or more of the BHP processes, its primary criteria RQ is raised one level; if the substance degrades to a more hazardous form, its RQ may be lowered.
c. Proposed Methodology
For approximately 60 of the 232 chemicals proposed for adjustment on August 30, 1989, the CERCLA methodology adjusted RQs that were too high for purposes of emergency notification under EPCRA. The reportable quantities under the CERCLA methodology in these cases are higher than the substances' EPCRA threshold planning quantity. To rectify this discrepancy, the August 30, 1989, notice proposed to modify the CERCLA RQ methodology by integrating the TPQ into the CERCLA RQ methodology. As proposed, after the two-step CERCLA RQ process had been applied to the chemicals, an additional step of comparing the tentative RQ to the substances' TPQs was applied. If the TPQ was lower than the tentative RQ, the RQ would be adjusted to the TPQ level or lower.
[[Page 20476]]
d. Alternative Chosen
In the proposed rule of August 30, 1989, the Agency was seeking comment on the various alternatives that could be used to set the reportable quantities. At the time the RQ adjustments were proposed, the Agency anticipated that the EHSs would be designated CERCLA hazardous substances as proposed on January 23, 1989 (54 FR 3388). The Agency, however is not finalizing at this time the proposal to designate these chemicals as CERCLA hazardous substances. Today's rule does not affect any CERCLA hazardous substances. Therefore, the Agency is not utilizing or modifying the CERCLA RQ methodology at this time. Instead, the Agency has decided to adjust the 1 pound EHS RQs to the same level as their respective TPQs.2
\2\ The release of EHSs which are already CERCLA hazardous substances is reportable at the RQ levels applicable under CERCLA. (EPCRA section 304 (a)(1)).
The Agency believes that it is appropriate to rely on the TPQ methodology rather than the CERCLA methodology to adjust EHS RQs for several reasons.
First, reporting of EHS releases is required because EHSs are acutely toxic and will potentially pose an immediate hazard upon release. Thus, EHS RQs should be adjusted based on substances' potential for immediate effects. The TPQ methodology, designed specifically for the EHSs, is based on such effects, utilizing a ``level of concern'' based upon short-term exposure concentrations that could lead to serious irreversible health effects. Second, use of the CERCLA secondary criteria of BHP is inappropriate for adjusting EHS RQs. The BHP analysis is used to increase a substance's RQ by taking into account its natural chemical degradation. EHSs can cause severe health effects after only a single, brief exposure which may occur prior to any chemical degradation. The BHP analysis and higher RQs based on chemical degradation are not suitable in this context.
Third, as with RQs, the Agency adjusts TPQs based on the possibility of harm from the release of a specific substance. In the Threshold Planning Quantity Technical Support Document to the proposed rule of November 17, 1986 (51 FR 41570) to adjust TPQs, EPA stated that the TPQ should represent a quantity that could cause serious health consequences if an accident were to occur with that quantity. Consistent with this statement, EPA modelled a variety of release scenarios to generate the relative ranking of each EHS and to determine the six TPQ quantities (1, 10, 100, 500, 1,000, and 10,000 pounds). Since the TPQ methodology is based on the possibility of harm from release, the Agency believes that it is appropriate to rely on it to adjust RQs as well.
Finally, like CERCLA RQs, EPCRA RQs do not reflect a determination that a release of a substance will always be hazardous at the RQ level and never hazardous below that level. EPA has not attempted to make such a determination because the actual hazard will vary with the unique circumstances of the release. For this reason, EPA encourages SERCs and LEPCs to consider the RQ during their emergency planning process involving facilities with extremely hazardous substances.III. Response to Comments on August 30, 1989 Proposal
Many of the comments received in response to the Federal Register notice of August 30, 1989, are not addressed today because they concerned the designation of EHSs as CERCLA hazardous substances and the adjustment of RQs for those substances under CERCLA. As stated above, the Agency is not taking action on modifying the CERCLA RQ methodology or listing EHSs as CERCLA hazardous substances at this time. For a complete list of comments and the Agency's responses, see the responses to comments document in the Docket of this Federal Register notice.
a. Threshold Planning Quantity Methodology
The Agency received several comments on its proposed use of the TPQ methodology to adjust RQs. These commenters believed that the use of the TPQ methodology was inappropriate because the RQ and the TPQ address different regulatory requirements. EPA believes that the TPQ methodology is appropriate for these chemicals. Although the RQs and TPQs trigger two distinct notification requirements, both quantities are adjusted based on the possibility of harm from the release of a specific substance. Thus, even though TPQ (EPCRA Sec. 302) notification is not triggered by an actual release, the TPQ is based upon the potential harm from an actual release. In addition, the particular concern with EHSs is that they will potentially pose an immediate hazard upon release. Notification requirements should be based on the potential for these immediate effects, and the TPQ methodology (developed specifically for the EHS list) is in fact based upon the potential for immediate effects. For these reasons, the Agency believes that the use of the TPQ methodology is appropriate to set RQs for extremely hazardous substances. However, because these chemicals are not being added to the CERCLA hazardous substance list, modification of the CERCLA RQ methodology is not warranted at this time.
b. Sulfur Dioxide
The adjusted RQ for sulfur dioxide was proposed at 100-pounds. Several commenters from the petroleum industry commented that the 100- pound RQ is too low and would require needless and excessive reporting for the petroleum sector. In the petroleum sector, sulfur dioxide is a combustion product created when hydrogen sulfide from crude oil and natural gas is flared. The commenters referenced the Federal Clean Air Act New Source Performance Standards that they state allow coal fired power plants to emit 200,000 pounds per day of sulfur dioxide. The proposed RQ for sulfur dioxide was set at 100-pounds based on the proposed modified CERCLA RQ methodology. In the final rule of April 22, 1987 (52 FR 13378), the TPQ for sulfur dioxide was adjusted to 500- pounds. Because there is no 500-pound CERCLA RQ level, the sulfur dioxide RQ was proposed at 100-pounds. As stated earlier in this rule, EPA is not modifying the CERCLA RQ methodology at this time, but is adjusting RQs to the TPQ level. The final EPCRA RQ for sulfur dioxide is 500-pounds.
EPA does not agree that the existence of a 200,000 pounds per day standard for one sector means that the EPCRA RQ should be set at a higher RQ level. Sulfur dioxide is used in many industries other than the petroleum sector, for example, sulfuric acid production, water purification and the pulp and paper industry. While flares and stacks are designed to lift the sulfur dioxide into the atmosphere, ground level releases of sulfur dioxide, including releases from containers storing sulfur dioxide may be more hazardous to the community. Since EPA sets one RQ to incorporate all probable release scenarios, EPA believes that the 500 pound RQ based on the substance's IDLH value provides an appropriate level.
EPA notes that the release reporting requirements of EPCRA section 304 work in conjunction with the federally permitted release exemption under CERCLA section 101(10) and the continuous release reporting requirements under CERCLA section 103. Releases that are federally permitted and those that are continuous[[Page 20477]]
have reduced reporting requirements under EPCRA section 304.
c. Hydrogen Chloride
Several commenters correctly pointed out that the phrase ``gas only'' was omitted from the hydrogen chloride listing in the tables proposing to revise Appendices A and B to 40 CFR part 355. In today's rule, this omission is corrected.
In the final rule published in the Federal Register December 27, 1989 (54 FR 53057), EPA raised the reportable quantity for Hydrogen chloride (gas only) to 5,000 pounds. This is the same as the reportable quantity for hydrogen chloride (a synonym of hydrochloric acid) under CERCLA section 103.d. Sulfur Trioxide
Several commenters believed that a reportable quantity for sulfur trioxide above 100 pounds is warranted. EPA, however, disagrees. The 100 pound TPQ for sulfur Trioxide is based upon acute toxicity. EPA agrees that some releases of sulfur trioxide above 100-pounds may not be hazardous based upon the conditions of the release (e.g. from a flare or stack). However, 100-pound releases of sulfur trioxide at ground level (e.g. releases during sulfuric acid and explosive manufacturing) may pose a hazard to the community. An RQ incorporates all probable release scenarios so that persons off-site can determine the level of response necessary. Therefore, the Agency believes that the 100-pound RQ for sulfur trioxide based upon its acute toxicity is appropriate.
IV. Listing Corrections
EPA is making final a rule that was originally proposed on October 30, 1994, to remove phosphorus pentoxide, diethylcarbamizine citrate, finitrothion and tellurium from the extremely hazardous substances list.3
\3\ On October 30, 1994, EPA proposed the adjustment of the TPQ for isophorone diisocyanate. The final rule on this adjustment will be published in a future notice.
Substances are listed as EHSs based on toxicity criteria. Substances are screened using acute animal toxicity data for the most sensitive mammalian species and are placed on the list if they meet one of the following criteria:
• LC50 4 <ls-thn-eq> 0.5 mg/L
\4\ ``LC50'' refers to that concentration of a substance in the air that is expected to cause the death of 50 percent of a defined experimental population.
• Dermal LD50 5 <ls-thn-eq> 50 mg/kg
\5\ ``LD50'' refers to that dose of a substance expected to cause the death of 50 percent of a defined experimental population.
• Oral LD50 <ls-thn-eq> 25 mg/kg
If LC50 or LD50 data are not available, then LCLO or LDLO data are used. Substances that meet one of these criteria have the potential for causing harm if accidently released and are, therefore, designated as EHSs.
EPA listed phosphorus pentoxide based on information presented in an abstract. This source reported an LC50 of 0.061 mg/L for guinea pigs and an LC50 of 0.271 mg/L for mice exposed for 1 hour to smoke generated from burning red phosphorus. A significant limitation of this study is that the toxic effects cannot be directly related to phosphorus pentoxide. Therefore, these data are insufficient for listing phosphorus pentoxide as an EHS. In addition, the Elemental Phosphorus Ad Hoc Solid Waste Group submitted a study that indicated that the LC50 for rats exposed to phosphorus pentoxide for 4 hours is greater than 0.99 mg/L, well above the .5 mg/L listing criteria. Based on the insufficient information in the original study and the information of the more recent study, EPA has decided to remove phosphorus pentoxide from the EHS list. EPA listed diethylcarbamazine citrate based on information presented in a Russian data compilation that listed an LC50 for rats equal to 0.309 mg/L for a 4-hour exposure. Review of this information indicated that the toxicity values presented were unverifiable because the study details were not available. In addition, SmithKline Beecham submitted a study that reported no deaths of rats from exposure to either 1.63 mg/L or 2.38 mg/L for 1 hour. Based on the poor quality of the original study and the additional information received, EPA has decided to remove diethylcarbamazine citrate from the EHS list.
EPA listed fenitrothion based on a study that reported an LC50 equal to 0.378 mg/L for a 4-hour exposure. EPA's review of this study concluded that a toxic impurity had resulted in an erroneously low value for the LC50. In addition, a surfactant was present that altered the permeability of the skin and cell membranes of the test animals, making them more susceptible to fenitrothion's toxic effect. Information submitted by Sumitomo Chemical America, Inc., reported an LC50 greater than 2.210 mg/L. Based on the Agency's review and the additional information, fenitrothion is being deleted from the EHS list.
EPA listed tellurium metal based on a study that reported an oral LD50 of 20 mg/kg. Review of this study indicted that sodium tellurate, which is listed as an EHS, was used in the study rather than tellurium metal. The Selenium Tellurium Development Association also submitted a study that reported an LD50 greater than 5000 mg/kg for tellurium metal. Based on this information, EPA is deleting tellurium from the list of EHSs.V. Response to Comments on October 12, 1994, Proposal
EPA received one comment from the Clean Water Fund of North Carolina objecting to the removal of phosphorus pentoxide from the EHS list. The Clean Water Fund questions the validity of an unpublished 1987 toxicity study showing no toxic effects in exposed animals, at levels up to .99 mg/L of phosphorus pentoxide aerosol. That study however, did not determine the level of the chemical in question in the chamber atmosphere. The analytical method determined only total phosphorus, which was then converted to an equivalent concentration of phosphorus pentoxide in air. The Clean Water Fund argues, therefore, that the pentoxide should remain on the list because the 1980 and 1982 combustion experiments established that the pentoxide was a major component of the smoke and ``because the analytical techniques employed by the 1980 study may have actually synthesized the pentoxide from other (possibly less dangerous) phosphorus compounds actually present in the test chamber.'' The Agency assumes Clean Water Fund believes that because the pentoxide could have been synthesized from less toxic compounds, the pentoxide presented the toxic character of the test chamber gas.
EPA disagrees. The 1980 and 1982 studies show that, in burning the phosphorus, there is a potential for the production of several oxides of phosphorus. Regardless of how pentoxide was formed (as noted by the Clean Water Fund) or whether the various oxide compounds are more or less toxic, the fact still remains that the studies did not distinguish which of the various oxides caused the high toxicity of the smoke. While the 1987 study showed no toxicity of phosphorus pentoxide, it also is not conclusive because it did not indicate a direct measurement of phosphorus pentoxide in the chamber and the pentoxide could have hydrolyzed to possibly less toxic constituents. On balance, none of the studies presented show that phosphorus pentoxide meets the toxicity criteria. Accordingly, EPA is removing the chemical from the EHS list.[[Page 20478]]
VI. Regulatory Analyses
a. Executive Order 12866
Under Executive Order 12866, (58 FR 51,735) of October 4, 1993, the Agency must determine whether the regulatory action is ``significant'' and therefore subject to review by the Office of Management and Budget (OMB) and the requirements of the Executive Order. The Order defines ``significant regulatory action'' as one that is likely to result in a rule that may:
(1) Have an annual effect on the economy of $100 million or more or adversely affect in a material way the economy, a sector of the economy, productivity, competition, jobs, the environment, public health or safety, or State, local or tribal governments or communities; (2) Create a serious inconsistency or otherwise interfere with an action taken or planned by another agency; (3) Materially alter the budgetary impact of entitlements, grants, user fees, or loan programs or the rights and obligations of recipients thereof; or
(4) Raise novel legal or policy issues arising out of legal mandates, the President's priorities, or the principles set forth in the Executive Order.
It has been determined that this rule is not a ``significant regulatory action'' under the terms of Executive Order 12866 and is therefore not subject to OMB review.b. Regulatory Flexibility Analysis
Pursuant to the Regulatory Flexibility Act, 5 U.S.C. 601 et seq., whenever an agency is required to publish a notice of rulemaking for any proposed or final rule, it must prepare and make available for public comment a regulatory flexibility analysis that describes the effect of the rule on small entities (i.e., small businesses, small organizations, and small governmental jurisdictions). This analysis is unnecessary, however, if the agency's administrator certifies that the rule will not have a significant economic effect on a substantial number of small entities.
EPA has examined this rule's potential effects on small entities as required by the Regulatory Flexibility Act. It has determined that today's final rule will not have a significant economic effect on a substantial number of small entities. The overall economic effect of this regulation has been determined to equate to 6,249 hours of burden reduction (with no added burden) at a total cost saving of $355,628 per year to all regulated entities. Therefore, this regulation will have a cost savings, and not have a significant impact on small businesses.c. Paperwork Reduction Act
The information collection requirements contained in this final rule have been approved by OMB under the provisions of the Paperwork Reduction Act, 44 U.S.C. 3501 et seq., and have been assigned OMB control number 2050-0092 (EPA Information Collection Request No. 1395.2). Copies of the information collection requests may be obtained from Sandy Farmer, OPPE Regulatory Information Division, U.S. Environmental Protection Agency (2136), 401 M Street, SW., Washington, DC 20460 or by calling (202) 260-2740.
As indicated in the Section I Introduction, the mandatory reporting requirements under EPCRA section 304 serve as a trigger for informing state and local governments of a release, so that state and local personnel can evaluate the need for any necessary action in a timely fashion. EPCRA section 304 also requires the submittal of a written follow-up notice to the same state and local entities. The public reporting burden for the collection of information pursuant to EPCRA section 304 is estimated to take, on average, 5 hours per response. This estimate includes the time required to make the call and to develop the written follow-up notice. Because the RQs for almost all of the substances included in today's rule are to be raised, the net reporting and recordkeeping burden associated with reporting releases of these substances under EPCRA section 304 is expected to decrease. As demonstrated in an economic impact analysis (EIA), the Agency estimates that the total burden reduction for notification to SERCs and LEPCs, and notification to 911 services in transportation-related incidents, and the completion of follow up reports will equate to 6,249 hours at a total cost savings of $355,628 per year.
Send comments on the ICR to the Director, OPPE Regulatory Information Division, U.S. Environmental Protection Agency (2136), 401 M Street, SW., Washington, DC 20460; and to the Office of Information and Regulatory Affairs, Office of Management and Budget, 725 17th Street, NW., Washington, DC 20503, marked ``Attention: Desk Officer for EPA.'' Include ICR number 1395.2 in any correspondence.d. Unfunded Mandates Reform Act
Title II of the Unfunded Mandates Reform Act of 1995 (UMRA), Public Law 104-4, establishes requirements for Federal agencies to assess the effects of their regulatory actions on State, local, and tribal governments and the private sector. Under section 202 of the UMRA, EPA generally must prepare a written statement, including a cost-benefit analysis, for proposed and final rules with ``Federal mandates'' that may result in expenditures to State, local, and tribal governments, in the aggregate, or to the private sector, of $100 million or more in any one year. Before promulgating an EPA rule for which a written statement is needed, section 205 of the UMRA generally requires EPA to identify and consider a reasonable number of regulatory alternatives and adopt the least costly, most cost-effective or least burdensome alternative that achieves the objectives of the rule. The provisions of section 205 do not apply when they are inconsistent with applicable law. Moreover, section 205 allows EPA to adopt an alternative other than the least costly, most cost-effective or least burdensome alternative if the Administrator publishes with the final rule an explanation why that alternative was not adopted. Before EPA establishes any regulatory requirements that may significantly or uniquely affect small governments, including tribal governments, it must have developed under section 203 of the UMRA a small government agency plan. The plan must provide for notifying potentially affected small governments, enabling officials of affected small governments to have meaningful and timely input in the development of EPA regulatory proposals with significant Federal intergovernmental mandates, and informing, educating, and advising small governments on compliance with the regulatory requirements.
EPA has determined that this rule does not contain a Federal mandate that may result in expenditures of $100 million or more for State, local, and tribal governments, in the aggregate, or the private sector in any one year. Because the RQs for almost all of the substances included in today's rule are to be raised, the net reporting and recordkeeping burden associated with reporting releases of these substances under EPCRA section 304 is expected to decrease. As demonstrated in an economic impact analysis (EIA), the Agency estimates that the total burden reduction for notification to SERCs and LEPCs, and notification to 911 services in transportation-related incidents, and the completion of follow up reports will equate to 6,249 hours at a total cost savings of $355,628 per year. Thus, today's rule is not subject to the requirements of sections 202 and 205 of the UMRA. EPA has determined that this rule contains no regulatory requirements that might significantly or uniquely affect[[Page 20479]]
small governments. Because the RQs for almost all of the substances included in today's rule are to be raised, the net reporting and recordkeeping burden associated with reporting releases of these substances under EPCRA section 304 is expected to decrease. Small governments will no longer receive notifications and written follow-up reports from facilities that have releases of extremely hazardous substances less that the substances' TPQ.
List of Subjects in 40 CFR Part 355
Air pollution control, Chemical accident prevention, Chemical emergency preparedness, Chemicals, Community emergency response plan, Community right-to-know, Contingency planning, Disaster assistance, Emergency Planning and Community Right-to-Know Act, Extremely hazardous substances, Hazardous substances, Intergovernmental relations, Natural resources, Penalties, Reportable quantity, Reporting and recordkeeping requirements, Superfund Amendments and Reauthorization Act, Threshold planning quantity, Water pollution control, Water supply.
Dated: April 29, 1996.
Carol M. Browner,
Administrator.
For the reasons set out in the preamble, title 40, Chapter I of the Code of Federal Regulations is amended as follows:PART 355--EMERGENCY PLANNING AND NOTIFICATION
- The authority citation for part 355 continues to read as follows: Authority: 42 U.S.C. 11002, 11004, and 11048.
2. Appendices A and B in Part 355 are revised to read as follows:
Appendix A to Part 355--The List of Extremely Hazardous Substances and Their Threshold Planning Quantities
[Alphabetical Order]
Reportable quantity * Threshold planning quantityCAS No. Chemical name Notes (pounds) (pounds)
75-86-5..... Acetone Cyanohydrin........ ................ 10 1,0001752-30-3... Acetone Thiosemicarbazide.. ................ 1,000 1,000/10,000107-02-8.... Acrolein................... ................ 1 50079-06-1..... Acrylamide................. l 5,000 1,000/10,000107-13-1.... Acrylonitrile.............. l 100 10,000 814-68-6.... Acrylyl Chloride........... h 100 100 111-69-3.... Adiponitrile............... l 1,000 1,000 116-06-3.... Aldicarb................... c 1 100/10,000 309-00-2.... Aldrin..................... ................ 1 500/10,000 107-18-6.... Allyl Alcohol.............. ................ 100 1,000 107-11-9.... Allylamine................. ................ 500 500 20859-73-8.. Aluminum Phosphide......... b 100 500 54-62-6..... Aminopterin................ ................ 500 500/10,000 78-53-5..... Amiton..................... ................ 500 500 3734-97-2... Amiton Oxalate............. ................ 100 100/10,000 7664-41-7... Ammonia.................... l 100 500 300-62-9.... Amphetamine................ ................ 1,000 1,000 62-53-3..... Aniline.................... l 5,000 1,000 88-05-1..... Aniline, 2,4,6-Trimethyl-.. ................ 500 500 7783-70-2... Antimony Pentafluoride..... ................ 500 5001397-94-0... Antimycin A................ c 1,000 1,000/10,00086-88-4..... ANTU....................... ................ 100 500/10,000 1303-28-2... Arsenic Pentoxide.......... ................ 1 100/10,000 1327-53-3... Arsenous Oxide............. h 1 100/10,000 7784-34-1... Arsenous Trichloride....... ................ 1 500 7784-42-1... Arsine..................... ................ 100 100 2642-71-9... Azinphos-Ethyl............. ................ 100 100/10,000 86-50-0..... Azinphos-Methyl............ ................ 1 10/10,000 98-87-3..... Benzal Chloride............ ................ 5,000 500 98-16-8..... Benzenamine, 3- ................ 500 500 (Trifluoromethyl)-. 100-14-1.... Benzene, 1-(Chloromethyl)-4- ................ 500 500/10,000 Nitro-. 98-05-5..... Benzenearsonic Acid........ ................ 10 10/10,000 3615-21-2... Benzimidazole, 4,5-Dichloro- g 500 500/10,000 2-(Trifluoromethyl)-. 98-07-7..... Benzotrichloride........... ................ 10 100 100-44-7.... Benzyl Chloride............ ................ 100 500 140-29-4.... Benzyl Cyanide............. h 500 500 15271-41-7.. Bicyclo[2.2.1]Heptane-2- ................ 500 500/10,000 Carbonitrile, 5-Chloro-6- ((((Methylamino)Carbonyl)O xy)Imino)-, (1s-(1-alpha,2- beta,4-alpha,5-alpha,6E))-. 534-07-6.... Bis(Chloromethyl) Ketone... ................ 10 10/10,000 4044-65-9... Bitoscanate................ ................ 500 500/10,000 10294-34-5.. Boron Trichloride.......... ................ 500 500 7637-07-2... Boron Trifluoride.......... ................ 500 500 353-42-4.... Boron Trifluoride Compound ................ 1,000 1,000 With Methyl Ether (1:1). 28772-56-7.. Bromadiolone............... ................ 100 100/10,000 7726-95-6... Bromine.................... l 500 500 1306-19-0... Cadmium Oxide.............. ................ 100 100/10,0002223-93-0... Cadmium Stearate........... c 1,000 1,000/10,0007778-44-1... Calcium Arsenate........... ................ 1 500/10,000[[Page 20480]]
8001-35-2... Camphechlor................ ................ 1 500/10,000 56-25-7..... Cantharidin................ ................ 100 100/10,000 51-83-2..... Carbachol Chloride......... ................ 500 500/10,000 26419-73-8.. Carbamic Acid, Methyl-, O- d 1 100/10,000 (((2,4-Dimethyl-1, 3- Dithiolan-2- yl)Methylene)Amino)-. 1563-66-2... Carbofuran................. ................ 10 10/10,000 75-15-0..... Carbon Disulfide........... l 100 10,000 786-19-6.... Carbophenothion............ ................ 500 500 57-74-9..... Chlordane.................. ................ 1 1,000 470-90-6.... Chlorfenvinfos............. ................ 500 500 7782-50-5... Chlorine................... ................ 10 100 24934-91-6.. Chlormephos................ ................ 500 500 999-81-5.... Chlormequat Chloride....... h 100 100/10,000 79-11-8..... Chloroacetic Acid.......... ................ 100 100/10,000 107-07-3.... Chloroethanol.............. ................ 500 500 627-11-2.... Chloroethyl Chloroformate.. ................ 1,000 1,000 67-66-3..... Chloroform................. l 10 10,000 542-88-1.... Chloromethyl Ether......... h 10 100 107-30-2.... Chloromethyl Methyl Ether.. c 10 100 3691-35-8... Chlorophacinone............ ................ 100 100/10,000 1982-47-4... Chloroxuron................ ................ 500 500/10,000 21923-23-9.. Chlorthiophos.............. h 500 500 10025-73-7.. Chromic Chloride........... ................ 1 1/10,000 62207-76-5.. Cobalt, ((2,2'-(1,2- ................ 100 100/10,000 Ethanediylbis (Nitrilomethylidyne)) Bis(6-Fluorophenolato))(2- )-N,N',O,O')-. 10210-68-1.. Cobalt Carbonyl............ h 10 10/10,000 64-86-8..... Colchicine................. h 10 10/10,000 56-72-4..... Coumaphos.................. ................ 10 100/10,000 5836-29-3... Coumatetralyl.............. ................ 500 500/10,000 95-48-7..... Cresol, o-................. ................ 100 1,000/10,000 535-89-7.... Crimidine.................. ................ 100 100/10,000 4170-30-3... Crotonaldehyde............. ................ 100 1,000 123-73-9.... Crotonaldehyde, (E)-....... ................ 100 1,000506-68-3.... Cyanogen Bromide........... ................ 1,000 500/10,000 506-78-5.... Cyanogen Iodide............ ................ 1,000 1,000/10,0002636-26-2... Cyanophos.................. ................ 1,000 1,000 675-14-9.... Cyanuric Fluoride.......... ................ 100 100 66-81-9..... Cycloheximide.............. ................ 100 100/10,000 108-91-8.... Cyclohexylamine............ l 10,000 10,000 17702-41-9.. Decaborane(14)............. ................ 500 500/10,000 8065-48-3... Demeton.................... ................ 500 500 919-86-8.... Demeton-S-Methyl........... ................ 500 500 10311-84-9.. Dialifor................... ................ 100 100/10,000 19287-45-7.. Diborane................... ................ 100 100 111-44-4.... Dichloroethyl ether........ ................ 10 10,000 149-74-6.... Dichloromethylphenylsilane. ................ 1,000 1,000 62-73-7..... Dichlorvos................. ................ 10 1,000 141-66-2.... Dicrotophos................ ................ 100 100 1464-53-5... Diepoxybutane.............. ................ 10 500 814-49-3.... Diethyl Chlorophosphate.... h 500 500 71-63-6..... Digitoxin.................. c 100 100/10,000 2238-07-5... Diglycidyl Ether........... ................ 1,000 1,000 20830-75-5.. Digoxin.................... h 10 10/10,000 115-26-4.... Dimefox.................... ................ 500 500 60-51-5..... Dimethoate................. ................ 10 500/10,000 2524-03-0... Dimethyl ................ 500 500 Phosphorochloridothioate. 77-78-1..... Dimethyl sulfate........... ................ 100 500 75-78-5..... Dimethyldichlorosilane..... h 500 500 57-14-7..... Dimethylhydrazine.......... ................ 10 1,000 99-98-9..... Dimethyl-p-Phenylenediamine ................ 10 10/10,000 644-64-4.... Dimetilan.................. d 1 500/10,000 534-52-1.... Dinitrocresol.............. ................ 10 10/10,00088-85-7..... Dinoseb.................... ................ 1,000 100/10,0001420-07-1... Dinoterb................... ................ 500 500/10,000 78-34-2..... Dioxathion................. ................ 500 500 82-66-6..... Diphacinone................ ................ 10 10/10,000 152-16-9.... Diphosphoramide, Octamethyl- ................ 100 100 . 298-04-4.... Disulfoton................. ................ 1 500 514-73-8.... Dithiazanine Iodide........ ................ 500 500/10,000[[Page 20481]]
541-53-7.... Dithiobiuret............... ................ 100 100/10,000 316-42-7.... Emetine, Dihydrochloride... h 1 1/10,000 115-29-7.... Endosulfan................. ................ 1 10/10,000 2778-04-3... Endothion.................. ................ 500 500/10,000 72-20-8..... Endrin..................... ................ 1 500/10,000 106-89-8.... Epichlorohydrin............ l 100 1,000 2104-64-5... EPN........................ ................ 100 100/10,00050-14-6..... Ergocalciferol............. c 1,000 1,000/10,000379-79-3.... Ergotamine Tartrate........ ................ 500 500/10,000 1622-32-8... Ethanesulfonyl Chloride, 2- ................ 500 500 Chloro-. 10140-87-1.. Ethanol, 1,2-Dichloro-, ................ 1,000 1,000 Acetate. 563-12-2.... Ethion..................... ................ 10 1,000 13194-48-4.. Ethoprophos................ ................ 1,000 1,000 538-07-8.... Ethylbis(2- h 500 500 Chloroethyl)Amine. 371-62-0.... Ethylene Fluorohydrin...... c, h 10 10 75-21-8..... Ethylene Oxide............. l 10 1,000 107-15-3.... Ethylenediamine............ ................ 5,000 10,000 151-56-4.... Ethyleneimine.............. ................ 1 500 542-90-5.... Ethylthiocyanate........... ................ 10,000 10,000 22224-92-6.. Fenamiphos................. ................ 10 10/10,000 115-90-2.... Fensulfothion.............. h 500 500 4301-50-2... Fluenetil.................. ................ 100 100/10,000 7782-41-4... Fluorine................... k 10 500 640-19-7.... Fluoroacetamide............ j 100 100/10,000 144-49-0.... Fluoroacetic Acid.......... ................ 10 10/10,000 359-06-8.... Fluoroacetyl Chloride...... c 10 10 51-21-8..... Fluorouracil............... ................ 500 500/10,000 944-22-9.... Fonofos.................... ................ 500 500 50-00-0..... Formaldehyde............... l 100 500 107-16-4.... Formaldehyde Cyanohydrin... h 1,000 1,000 23422-53-9.. Formetanate Hydrochloride.. d, h 1 500/10,000 2540-82-1... Formothion................. ................ 100 100 17702-57-7.. Formparanate............... d 1 100/10,000 21548-32-3.. Fosthietan................. ................ 500 500 3878-19-1... Fuberidazole............... ................ 100 100/10,000 110-00-9.... Furan...................... ................ 100 500 13450-90-3.. Gallium Trichloride........ ................ 500 500/10,000 77-47-4..... Hexachlorocyclopentadiene.. h 10 100 4835-11-4... Hexamethylenediamine, N,N'- ................ 500 500 Dibutyl-. 302-01-2.... Hydrazine.................. ................ 1 1,000 74-90-8..... Hydrocyanic Acid........... ................ 10 100 7647-01-0... Hydrogen Chloride (gas l 5,000 500 only). 7664-39-3... Hydrogen Fluoride.......... ................ 100 100 7722-84-1... Hydrogen Peroxide (Conc > l 1,000 1,000 52). 7783-07-5... Hydrogen Selenide.......... ................ 10 10 7783-06-4... Hydrogen Sulfide........... l 100 500 123-31-9.... Hydroquinone............... l 100 500/10,000 13463-40-6.. Iron, Pentacarbonyl-....... ................ 100 100 297-78-9.... Isobenzan.................. ................ 100 100/10,000 78-82-0..... Isobutyronitrile........... h 1,000 1,000 102-36-3.... Isocyanic Acid, 3,4- ................ 500 500/10,000 Dichlorophenyl Ester. 465-73-6.... Isodrin.................... ................ 1 100/10,000 55-91-4..... Isofluorphate.............. c 100 100 4098-71-9... Isophorone Diisocyanate.... ................ 100 100 108-23-6.... Isopropyl Chloroformate.... ................ 1,000 1,000 119-38-0.... Isopropylmethylpyrazolyl d 1 500 Dimethylcarbamate. 78-97-7..... Lactonitrile............... ................ 1,000 1,000 21609-90-5.. Leptophos.................. ................ 500 500/10,000 541-25-3.... Lewisite................... c, h 10 10 58-89-9..... Lindane.................... ................ 1 1,000/10,000 7580-67-8... Lithium Hydride............ b 100 100109-77-3.... Malononitrile.............. ................ 1,000 500/10,00012108-13-3.. Manganese, Tricarbonyl h 100 100 Methylcyclopentadienyl. 51-75-2..... Mechlorethamine............ c 10 10 950-10-7.... Mephosfolan................ ................ 500 500 1600-27-7... Mercuric Acetate........... ................ 500 500/10,000 7487-94-7... Mercuric Chloride.......... ................ 500 500/10,000 21908-53-2.. Mercuric Oxide............. ................ 500 500/10,000[[Page 20482]]
10476-95-6.. Methacrolein Diacetate..... ................ 1,000 1,000 760-93-0.... Methacrylic Anhydride...... ................ 500 500 126-98-7.... Methacrylonitrile.......... h 1,000 500 920-46-7.... Methacryloyl Chloride...... ................ 100 100 30674-80-7.. Methacryloyloxyethyl h 100 100 Isocyanate. 10265-92-6.. Methamidophos.............. ................ 100 100/10,000 558-25-8.... Methanesulfonyl Fluoride... ................ 1,000 1,000 950-37-8.... Methidathion............... ................ 500 500/10,000 2032-65-7... Methiocarb................. ................ 10 500/10,000 16752-77-5.. Methomyl................... h 100 500/10,000 151-38-2.... Methoxyethylmercuric ................ 500 500/10,000 Acetate. 80-63-7..... Methyl 2-Chloroacrylate.... ................ 500 500 74-83-9..... Methyl Bromide............. l 1,000 1,000 79-22-1..... Methyl Chloroformate....... h 1,000 500 60-34-4..... Methyl Hydrazine........... ................ 10 500 624-83-9.... Methyl Isocyanate.......... ................ 10 500 556-61-6.... Methyl Isothiocyanate...... b 500 500 74-93-1..... Methyl Mercaptan........... l 100 500 3735-23-7... Methyl Phenkapton.......... ................ 500 500 676-97-1.... Methyl Phosphonic b 100 100 Dichloride. 556-64-9.... Methyl Thiocyanate......... ................ 10,000 10,000 78-94-4..... Methyl Vinyl Ketone........ ................ 10 10 502-39-6.... Methylmercuric Dicyanamide. ................ 500 500/10,000 75-79-6..... Methyltrichlorosilane...... h 500 500 1129-41-5... Metolcarb.................. d 1 100/10,000 7786-34-7... Mevinphos.................. ................ 10 500315-18-4.... Mexacarbate................ ................ 1,000 500/10,00050-07-7..... Mitomycin C................ ................ 10 500/10,000 6923-22-4... Monocrotophos.............. ................ 10 10/10,0002763-96-4... Muscimol................... ................ 1,000 500/10,000505-60-2.... Mustard Gas................ h 500 500 13463-39-3.. Nickel Carbonyl............ ................ 10 1 54-11-5..... Nicotine................... c 100 100 65-30-5..... Nicotine Sulfate........... ................ 100 100/10,000 7697-37-2... Nitric Acid................ ................ 1,000 1,000 10102-43-9.. Nitric Oxide............... c 10 100 98-95-3..... Nitrobenzene............... l 1,000 10,000 1122-60-7... Nitrocyclohexane........... ................ 500 500 10102-44-0.. Nitrogen Dioxide........... ................ 10 100 62-75-9..... Nitrosodimethylamine....... h 10 1,000 991-42-4.... Norbormide................. ................ 100 100/10,000 0........... Organorhodium Complex (PMN- ................ 10 10/10,000 82-147). 630-60-4.... Ouabain.................... c 100 100/10,000 23135-22-0.. Oxamyl..................... d 1 100/10,000 78-71-7..... Oxetane, 3,3- ................ 500 500 Bis(Chloromethyl)-. 2497-07-6... Oxydisulfoton.............. h 500 500 10028-15-6.. Ozone...................... ................ 100 100 1910-42-5... Paraquat Dichloride........ ................ 10 10/10,000 2074-50-2... Paraquat Methosulfate...... ................ 10 10/10,000 56-38-2..... Parathion.................. c 10 100 298-00-0.... Parathion-Methyl........... c 100 100/10,000 12002-03-8.. Paris Green................ ................ 1 500/10,000 19624-22-7.. Pentaborane................ ................ 500 500 2570-26-5... Pentadecylamine............ ................ 100 100/10,000 79-21-0..... Peracetic Acid............. ................ 500 500 594-42-3.... Perchloromethylmercaptan... ................ 100 500108-95-2.... Phenol..................... ................ 1,000 500/10,0004418-66-0... Phenol, 2,2'-Thiobis(4- ................ 100 100/10,000 Chloro-6-Methyl)-. 64-00-6..... Phenol, 3-(1-Methylethyl)-, d 1 500/10,000 Methylcarbamate. 58-36-6..... Phenoxarsine, 10,10'-Oxydi- ................ 500 500/10,000 696-28-6.... Phenyl Dichloroarsine...... h 1 50059-88-1..... Phenylhydrazine ................ 1,000 1,000/10,000Hydrochloride. 62-38-4..... Phenylmercury Acetate...... ................ 100 500/10,000 2097-19-0... Phenylsilatrane............ h 100 100/10,000 103-85-5.... Phenylthiourea............. ................ 100 100/10,000 298-02-2.... Phorate.................... ................ 10 10 4104-14-7... Phosacetim................. ................ 100 100/10,000 947-02-4.... Phosfolan.................. ................ 100 100/10,000[[Page 20483]]
75-44-5..... Phosgene................... l 10 10 732-11-6.... Phosmet.................... ................ 10 10/10,000 13171-21-6.. Phosphamidon............... ................ 100 100 7803-51-2... Phosphine.................. ................ 100 500 2703-13-1... Phosphonothioic Acid, ................ 500 500 Methyl-, O-Ethyl O-(4- (Methylthio) Phenyl) Ester. 50782-69-9.. Phosphonothioic Acid, ................ 100 100 Methyl-, S-(2-(Bis(1- Methylethyl)Amino)Ethyl) O- Ethyl Ester. 2665-30-7... Phosphonothioic Acid, ................ 500 500 Methyl-, O-(4-Nitrophenyl) O-Phenyl Ester. 3254-63-5... Phosphoric Acid, Dimethyl 4- ................ 500 500 (Methylthio)Phenyl Ester. 2587-90-8... Phosphorothioic Acid, O,O- c, g 500 500 Dimethyl-S-(2-Methylthio) Ethyl Ester. 7723-14-0... Phosphorus................. b, h 1 100 10025-87-3.. Phosphorus Oxychloride..... ................ 1,000 500 10026-13-8.. Phosphorus Pentachloride... b 500 500 7719-12-2... Phosphorus Trichloride..... ................ 1,000 1,000 57-47-6..... Physostigmine.............. d 1 100/10,000 57-64-7..... Physostigmine, Salicylate d 1 100/10,000 (1:1). 124-87-8.... Picrotoxin................. ................ 500 500/10,000 110-89-4.... Piperidine................. ................ 1,000 1,000 23505-41-1.. Pirimifos-Ethyl............ ................ 1,000 1,000 10124-50-2.. Potassium Arsenite......... ................ 1 500/10,000 151-50-8.... Potassium Cyanide.......... b 10 100 506-61-6.... Potassium Silver Cyanide... b 1 500 2631-37-0... Promecarb.................. d, h 1 500/10,000 106-96-7.... Propargyl Bromide.......... ................ 10 10 57-57-8..... Propiolactone, Beta-....... ................ 10 500 107-12-0.... Propionitrile.............. ................ 10 500 542-76-7.... Propionitrile, 3-Chloro-... ................ 1,000 1,000 70-69-9..... Propiophenone, 4-Amino-.... g 100 100/10,000 109-61-5.... Propyl Chloroformate....... ................ 500 500 75-56-9..... Propylene Oxide............ l 100 10,000 75-55-8..... Propyleneimine............. ................ 1 10,000 2275-18-5... Prothoate.................. ................ 100 100/10,000129-00-0.... Pyrene..................... c 5,000 1,000/10,000140-76-1.... Pyridine, 2-Methyl-5-Vinyl- ................ 500 500504-24-5.... Pyridine, 4-Amino-......... h 1,000 500/10,0001124-33-0... Pyridine, 4-Nitro-,l-Oxide. ................ 500 500/10,000 53558-25-1.. Pyriminil.................. h 100 100/10,000 14167-18-1.. Salcomine.................. ................ 500 500/10,000 107-44-8.... Sarin...................... h 10 10 7783-00-8... Selenious Acid............. ................ 10 1,000/10,000 7791-23-3... Selenium Oxychloride....... ................ 500 500563-41-7.... Semicarbazide Hydrochloride ................ 1,000 1,000/10,0003037-72-7... Silane, (4- ................ 1,000 1,000 Aminobutyl)Diethoxymethyl-. 7631-89-2... Sodium Arsenate............ ................ 1 1,000/10,000 7784-46-5... Sodium Arsenite............ ................ 1 500/10,000 26628-22-8.. Sodium Azide (Na(N3))...... b 1,000 500 124-65-2.... Sodium Cacodylate.......... ................ 100 100/10,000 143-33-9.... Sodium Cyanide (Na(CN)).... b 10 100 62-74-8..... Sodium Fluoroacetate....... ................ 10 10/10,000 13410-01-0.. Sodium Selenate............ ................ 100 100/10,000 10102-18-8.. Sodium Selenite............ h 100 100/10,000 10102-20-2.. Sodium Tellurite........... ................ 500 500/10,000 900-95-8.... Stannane, Acetoxytriphenyl- g 500 500/10,000 57-24-9..... Strychnine................. c 10 100/10,000 60-41-3..... Strychnine Sulfate......... ................ 10 100/10,000 3689-24-5... Sulfotep................... ................ 100 500 3569-57-1... Sulfoxide, 3-Chloropropyl ................ 500 500 Octyl. 7446-09-5... Sulfur Dioxide............. 1 500 500 7783-60-0... Sulfur Tetrafluoride....... ................ 100 100 7446-11-9... Sulfur Trioxide............ b 100 100 7664-93-9... Sulfuric Acid.............. ................ 1,000 1,000 77-81-6..... Tabun...................... c, h 10 10 7783-80-4... Tellurium Hexafluoride..... k 100 100 107-49-3.... TEPP....................... ................ 10 100 13071-79-9.. Terbufos................... h 100 100 78-00-2..... Tetraethyllead............. c 10 100 597-64-8.... Tetraethyltin.............. c 100 100 75-74-1..... Tetramethyllead............ c, 1 100 100 509-14-8.... Tetranitromethane.......... ................ 10 500[[Page 20484]]
10031-59-1.. Thallium Sulfate........... h 100 100/10,000 6533-73-9... Thallous Carbonate......... c, h 100 100/10,000 7791-12-0... Thallous Chloride.......... c, h 100 100/10,000 2757-18-8... Thallous Malonate.......... c, h 100 100/10,000 7446-18-6... Thallous Sulfate........... ................ 100 100/10,0002231-57-4... Thiocarbazide.............. ................ 1,000 1,000/10,00039196-18-4.. Thiofanox.................. ................ 100 100/10,000 297-97-2.... Thionazin.................. ................ 100 500 108-98-5.... Thiophenol................. ................ 100 500 79-19-6..... Thiosemicarbazide.......... ................ 100 100/10,000 5344-82-1... Thiourea, (2-Chlorophenyl)- ................ 100 100/10,000 614-78-8.... Thiourea, (2-Methylphenyl)- ................ 500 500/10,000 7550-45-0... Titanium Tetrachloride..... ................ 1,000 100 584-84-9.... Toluene 2,4-Diisocyanate... ................ 100 500 91-08-7..... Toluene 2,6-Diisocyanate... ................ 100 100 110-57-6.... Trans-1,4-Dichlorobutene... ................ 500 500 1031-47-6... Triamiphos................. ................ 500 500/10,000 24017-47-8.. Triazofos.................. ................ 500 500 76-02-8..... Trichloroacetyl Chloride... ................ 500 500 115-21-9.... Trichloroethylsilane....... h 500 500 327-98-0.... Trichloronate.............. k 500 500 98-13-5..... Trichlorophenylsilane...... h 500 500 1558-25-4... Trichloro(Chloromethyl)Sila ................ 100 100 ne. 27137-85-5.. Trichloro(Dichlorophenyl) ................ 500 500 Silane. 998-30-1.... Triethoxysilane............ ................ 500 500 75-77-4..... Trimethylchlorosilane...... ................ 1,000 1,000 824-11-3.... Trimethylolpropane h 100 100/10,000 Phosphite. 1066-45-1... Trimethyltin Chloride...... ................ 500 500/10,000 639-58-7.... Triphenyltin Chloride...... ................ 500 500/10,000 555-77-1.... Tris(2-Chloroethyl)Amine... h 100 1002001-95-8... Valinomycin................ c 1,000 1,000/10,000 1314-62-1... Vanadium Pentoxide......... ................ 1,000 100/10,000108-05-4.... Vinyl Acetate Monomer...... 1 5,000 1,000 81-81-2..... Warfarin................... ................ 100 500/10,000 129-06-6.... Warfarin Sodium............ h 100 100/10,000 28347-13-9.. Xylylene Dichloride........ ................ 100 100/10,000 58270-08-9.. Zinc, Dichloro(4,4- ................ 100 100/10,000 Dimethyl- 5((((Methylamino)Carbonyl) Oxy)Imino)Pentanenitrile)- , (T-4)-. 1314-84-7... Zinc Phosphide............. b 100 500
Appendix B to Part 355--The List of Extremely Hazardous Substances and Their Threshold Planning Quantities
- Only the statutory or final RQ is shown. For more information, see 40 CFR Table 302.4. Notes: a This chemical does not meet acute toxicity criteria. Its TPQ is set at 10,000 pounds. b This material is a reactive solid. The TPQ does not default to 10,000 pounds for non-powder, non-molten, nonsolution form. c The calculated TPQ changed after technical review as described in the technical support document. d Indicates that the RQ is subject to change when the assessment of potential carcinogenicity and/or other toxicity is completed. e Statutory reportable quantity for purposes of notification under SARA sect 304(a)(2). f [Reserved] g New chemicals added that were not part of the original list of 402 substances. h Revised TPQ based on new or re-evaluated toxicity data. j TPQ is revised to its calculated value and does not change due to technical review as in proposed rule. k The TPQ was revised after proposal due to calculation error. l Chemicals on the original list that do not meet toxicity criteria but because of their high production volume and recognized toxicity are considered chemicals of concern (``Other chemicals'').
[CAS Number Order]
Reportable quantity * Threshold planning quantityCAS No. Chemical name Notes (pounds) (pounds)
0........... Organorhodium Complex (PMN- ................ 10 10/10,000 82-147). 50-00-0..... Formaldehyde............... l 100 500 50-07-7..... Mitomycin C................ ................ 10 500/10,00050-14-6..... Ergocalciferol............. c 1,000 1,000/10,00051-21-8..... Fluorouracil............... ................ 500 500/10,000 51-75-2..... Mechlorethaminec........... c 10 10[[Page 20485]]
51-83-2..... Carbachol Chloride......... ................ 500 500/10,000 54-11-5..... Nicotine................... c 100 100 54-62-6..... Aminopterin................ ................ 500 500/10,000 55-91-4..... Isofluorphate.............. c 100 100 56-25-7..... Cantharidin................ ................ 100 100/10,000 56-38-2..... Parathion.................. c 10 100 56-72-4..... Coumaphos.................. ................ 10 100/10,000 57-14-7..... Dimethylhydrazine.......... ................ 10 1,000 57-24-9..... Strychnine................. c 10 100/10,000 57-47-6..... Physostigmine.............. d 1 100/10,000 57-57-8..... Propiolactone, Beta-....... ................ 10 500 57-64-7..... Physostigmine, Salicylate d 1 100/10,000 (1:1). 57-74-9..... Chlordane.................. ................ 1 1,000 58-36-6..... Phenoxarsine, 10,10'-Oxydi- ................ 500 500/10,000 58-89-9..... Lindane.................... ................ 1 1,000/10,00059-88-1..... Phenylhydrazine ................ 1,000 1,000/10,000Hydrochloride. 60-34-4..... Methyl Hydrazine........... ................ 10 500 60-41-3..... Strychnine sulfate......... ................ 10 100/10,000 60-51-5..... Dimethoate................. ................ 10 500/10,000 62-38-4..... Phenylmercury Acetate...... ................ 100 500/10,000 62-53-3..... Aniline.................... l 5,000 1,000 62-73-7..... Dichlorvos................. ................ 10 1,000 62-74-8..... Sodium Fluoroacetate....... ................ 10 10/10,000 62-75-9..... Nitrosodimethylamine....... h 10 1,000 64-00-6..... Phenol, 3-(1-Methylethyl)-, d 1 500/10,000 Methylcarbamate. 64-86-8..... Colchicine................. h 10 10/10,000 65-30-5..... Nicotine sulfate........... ................ 100 100/10,000 66-81-9..... Cycloheximide.............. ................ 100 100/10,000 67-66-3..... Chloroform................. l 10 10,000 70-69-9..... Propiophenone, 4-Amino-.... g 100 100/10,000 71-63-6..... Digitoxin.................. c 100 100/10,000 72-20-8..... Endrin..................... ................ 1 500/10,000 74-83-9..... Methyl Bromide............. l 1,000 1,000 74-90-8..... Hydrocyanic Acid........... ................ 10 100 74-93-1..... Methyl Mercaptan........... l 100 500 75-15-0..... Carbon Disulfide........... l 100 10,000 75-21-8..... Ethylene Oxide............. l 10 1,000 75-44-5..... Phosgene................... l 10 10 75-55-8..... Propyleneimine............. ................ 1 10,000 75-56-9..... Propylene Oxide............ l 100 10,000 75-74-1..... Tetramethyllead............ c, l 100 100 75-77-4..... Trimethylchlorosilane...... ................ 1,000 1,000 75-78-5..... Dimethyldichlorosilane..... h 500 500 75-79-6..... Methyltrichlorosilane...... h 500 500 75-86-5..... Acetone Cyanohydrin........ ................ 10 1,000 76-02-8..... Trichloroacetyl Chloride... ................ 500 500 77-47-4..... Hexachlorocyclopentadiene.. h 10 100 77-78-1..... Dimethyl Sulfate........... ................ 100 500 77-81-6..... Tabun...................... c, h 10 10 78-00-2..... Tetraethyllead............. c 10 100 78-34-2..... Dioxathion................. ................ 500 500 78-53-5..... Amiton..................... ................ 500 500 78-71-7..... Oxetane, 3,3- ................ 500 500 Bis(Chloromethyl)-. 78-82-0..... Isobutyronitrile........... h 1,000 1,000 78-94-4..... Methyl Vinyl Ketone........ ................ 10 10 78-97-7..... Lactonitrile............... ................ 1,000 1,00079-06-1..... Acrylamide................. l 5,000 1,000/10,00079-11-8..... Chloroacetic Acid.......... ................ 100 100/10,000 79-19-6..... Thiosemicarbazide.......... ................ 100 100/10,000 79-21-0..... Peracetic Acid............. ................ 500 500 79-22-1..... Methyl Chloroformate....... h 1,000 500 80-63-7..... Methyl 2-Chloroacrylate.... ................ 500 500 81-81-2..... Warfarin................... ................ 100 500/10,000 82-66-6..... Diphacinone................ ................ 10 10/10,000 86-50-0..... Azinphos-Methyl............ ................ 1 10/10,000 86-88-4..... ANTU....................... ................ 100 500/10,000 88-05-1..... Aniline, 2,4,6-Trimethyl-.. ................ 500 50088-85-7..... Dinoseb.................... ................ 1,000 100/10,000[[Page 20486]]
91-08-7..... Toluene 2,6-Diisocyanate... ................ 100 100 95-48-7..... Cresol, o-................. ................ 100 1,000/10,000 98-05-5..... Benzenearsonic Acid........ ................ 10 10/10,000 98-07-7..... Benzotrichloride........... ................ 10 100 98-13-5..... Trichlorophenylsilane...... h 500 500 98-16-8..... Benzenamine, 3- ................ 500 500 (Trifluoromethyl)-. 98-87-3..... Benzal Chloride............ ................ 5,000 500 98-95-3..... Nitrobenzene............... l 1,000 10,000 99-98-9..... Dimethyl-p-Phenylenediamine ................ 10 10/10,000 100-14-1.... Benzene, 1-(Chloromethyl)-4- ................ 500 500/10,000 Nitro-. 100-44-7.... Benzyl Chloride............ ................ 100 500 102-36-3.... Isocyanic Acid, 3,4- ................ 500 500/10,000 Dichlorophenyl Ester. 103-85-5.... Phenylthiourea............. ................ 100 100/10,000 106-89-8.... Epichlorohydrin............ l 100 1,000 106-96-7.... Propargyl Bromide.......... ................ 10 10 107-02-8.... Acrolein................... ................ 1 500 107-07-3.... Chloroethanol.............. ................ 500 500 107-11-9.... Allylamine................. ................ 500 500 107-12-0.... Propionitrile.............. ................ 10 500 107-13-1.... Acrylonitrile.............. l 100 10,000 107-15-3.... Ethylenediamine............ ................ 5,000 10,000 107-16-4.... Formaldehyde Cyanohydrin... h 1,000 1,000 107-18-6.... Allyl Alcohol.............. ................ 100 1,000 107-30-2.... Chloromethyl Methyl Ether.. c 10 100 107-44-8.... Sarin...................... h 10 10 107-49-3.... TEPP....................... ................ 10 100 108-05-4.... Vinyl Acetate Monomer...... l 5,000 1,000 108-23-6.... Isopropyl Chloroformate.... ................ 1,000 1,000 108-91-8.... Cyclohexylamine............ l 10,000 10,000108-95-2.... Phenol..................... ................ 1,000 500/10,000108-98-5.... Thiophenol................. ................ 100 500 109-61-5.... Propyl Chloroformate....... ................ 500 500109-77-3.... Malononitrile.............. ................ 1,000 500/10,000110-00-9.... Furan...................... ................ 100 500 110-57-6.... Trans-1,4-Dichlorobutene... ................ 500 500 110-89-4.... Piperidine................. ................ 1,000 1,000 111-44-4.... Dichloroethyl Ether........ ................ 10 10,000 111-69-3.... Adiponitrile............... l 1,000 1,000 115-21-9.... Trichloroethylsilane....... h 500 500 115-26-4.... Dimefox.................... ................ 500 500 115-29-7.... Endosulfan................. ................ 1 10/10,000 115-90-2.... Fensulfothion.............. h 500 500 116-06-3.... Aldicarb................... c 1 100/10,000 119-38-0.... Isopropylmethylpyrazolyl d 1 500 Dimethylcarbamate. 123-31-9.... Hydroquinone............... l 100 500/10,000 123-73-9.... Crotonaldehyde, (E)-....... ................ 100 1,000 124-65-2.... Sodium Cacodylate.......... ................ 100 100/10,000 124-87-8.... Picrotoxin................. ................ 500 500/10,000 126-98-7.... Methacrylonitrile.......... h 1,000 500129-00-0.... Pyrene..................... c 5,000 1,000/10,000129-06-6.... Warfarin Sodium............ h 100 100/10,000 140-29-4.... Benzyl Cyanide............. h 500 500 140-76-1.... Pyridine, 2-Methyl-5-Vinyl- ................ 500 500 141-66-2.... Dicrotophos................ ................ 100 100 143-33-9.... Sodium Cyanide (Na(CN)).... b 10 100 144-49-0.... Fluoroacetic Acid.......... ................ 10 10/10,000 149-74-6.... Dichloromethylphenylsilane. ................ 1,000 1,000 151-38-2.... Methoxyethylmercuric ................ 500 500/10,000 Acetate. 151-50-8.... Potassium Cyanide.......... b 10 100 151-56-4.... Ethyleneimine.............. ................ 1 500 152-16-9.... Diphosphoramide, Octamethyl- ................ 100 100 . 297-78-9.... Isobenzan.................. ................ 100 100/10,000 297-97-2.... Thionazin.................. ................ 100 500 298-00-0.... Parathion-Methyl........... c 100 100/10,000 298-02-2.... Phorate.................... ................ 10 10 298-04-4.... Disulfoton................. ................ 1 500 300-62-9.... Amphetamine................ ................ 1,000 1,000 302-01-2.... Hydrazine.................. ................ 1 1,000[[Page 20487]]
309-00-2.... Aldrin..................... ................ 1 500/10,000315-18-4.... Mexacarbate................ ................ 1,000 500/10,000316-42-7.... Emetine, Dihydrochloride... h 1 1/10,000 327-98-0.... Trichloronate.............. k 500 500 353-42-4.... Boron Trifluoride Compound ................ 1,000 1,000 With Methyl Ether (1:1). 359-06-8.... Fluoroacetyl Chloride...... c 10 10 371-62-0.... Ethylene Fluorohydrin...... c, h 10 10 379-79-3.... Ergotamine Tartrate........ ................ 500 500/10,000 465-73-6.... Isodrin.................... ................ 1 100/10,000 470-90-6.... Chlorfenvinfos............. ................ 500 500 502-39-6.... Methylmercuric Dicyanamide. ................ 500 500/10,000504-24-5.... Pyridine, 4-Amino-......... h 1,000 500/10,000505-60-2.... Mustard Gas................ h 500 500 506-61-6.... Potassium Silver Cyanide... b 1 500506-68-3.... Cyanogen Bromide........... ................ 1,000 500/10,000 506-78-5.... Cyanogen Iodide............ ................ 1,000 1,000/10,000509-14-8.... Tetranitromethane.......... ................ 10 500 514-73-8.... Dithiazanine Iodide........ ................ 500 500/10,000 534-07-6.... Bis(Chloromethyl) Ketone... ................ 10 10/10,000 534-52-1.... Dinitrocresol.............. ................ 10 10/10,000 535-89-7.... Crimidine.................. ................ 100 100/10,000 538-07-8.... Ethylbis(2- h 500 500 Chloroethyl)Amine. 541-25-3.... Lewisite................... c, h 10 10 541-53-7.... Dithiobiuret............... ................ 100 100/10,000 542-76-7.... Propionitrile, 3-Chloro-... ................ 1,000 1,000 542-88-1.... Chloromethyl Ether......... h 10 100 542-90-5.... Ethylthiocyanate........... ................ 10,000 10,000 555-77-1.... Tris(2-Chloroethyl)Amine... h 100 100 556-61-6.... Methyl Isothiocyanate...... b 500 500 556-64-9.... Methyl Thiocyanate......... ................ 10,000 10,000 558-25-8.... Methanesulfonyl Fluoride... ................ 1,000 1,000 563-12-2.... Ethion..................... ................ 10 1,000563-41-7.... Semicarbazide Hydrochloride ................ 1,000 1,000/10,000584-84-9.... Toluene 2,4-Diisocyanate... ................ 100 500 594-42-3.... Perchloromethylmercaptan... ................ 100 500 597-64-8.... Tetraethyltin.............. c 100 100 614-78-8.... Thiourea, (2-Methylphenyl)- ................ 500 500/10,000 624-83-9.... Methyl Isocyanate.......... ................ 10 500 627-11-2.... Chloroethyl Chloroformate.. ................ 1,000 1,000 630-60-4.... Ouabain.................... c 100 100/10,000 639-58-7.... Triphenyltin Chloride...... ................ 500 500/10,000 640-19-7.... Fluoroacetamide............ j 100 100/10,000 644-64-4.... Dimetilan.................. d 1 500/10,000 675-14-9.... Cyanuric Fluoride.......... ................ 100 100 676-97-1.... Methyl Phosphonic b 100 100 Dichloride. 696-28-6.... Phenyl Dichloroarsine...... h 1 500 732-11-6.... Phosmet.................... ................ 10 10/10,000 760-93-0.... Methacrylic Anhydride...... ................ 500 500 786-19-6.... Carbophenothion............ ................ 500 500 814-49-3.... Diethyl Chlorophosphate.... h 500 500 814-68-6.... Acrylyl Chloride........... h 100 100 824-11-3.... Trimethylolpropane h 100 100/10,000 Phosphite. 900-95-8.... Stannane, Acetoxytriphenyl- g 500 500/10,000 919-86-8.... Demeton-S-Methyl........... ................ 500 500 920-46-7.... Methacryloyl Chloride...... ................ 100 100 944-22-9.... Fonofos.................... ................ 500 500 947-02-4.... Phosfolan.................. ................ 100 100/10,000 950-10-7.... Mephosfolan................ ................ 500 500 950-37-8.... Methidathion............... ................ 500 500/10,000 991-42-4.... Norbormide................. ................ 100 100/10,000 998-30-1.... Triethoxysilane............ ................ 500 500 999-81-5.... Chlormequat Chloride....... h 100 100/10,000 1031-47-6... Triamiphos................. ................ 500 500/10,000 1066-45-1... Trimethyltin Chloride...... ................ 500 500/10,000 1122-60-7... Nitrocyclohexane........... ................ 500 500 1124-33-0... Pyridine, 4-Nitro-,1-Oxide. ................ 500 500/10,000 1129-41-5... Metolcarb.................. d 1 100/10,000 1303-28-2... Arsenic Pentoxide.......... ................ 1 100/10,000[[Page 20488]]
1306-19-0... Cadmium Oxide.............. ................ 100 100/10,0001314-62-1... Vanadium Pentoxide......... ................ 1,000 100/10,0001314-84-7... Zinc Phosphide............. b 100 500 1327-53-3... Arsenous Oxide............. h 1 100/10,0001397-94-0... Antimycin A................ c 1,000 1,000/10,0001420-07-1... Dinoterb................... ................ 500 500/10,000 1464-53-5... Diepoxybutane.............. ................ 10 500 1558-25-4... Trichloro(Chloromethyl)Sila ................ 100 100 ne. 1563-66-2... Carbofuran................. ................ 10 10/10,000 1600-27-7... Mercuric Acetate........... ................ 500 500/10,000 1622-32-8... Ethanesulfonyl Chloride, 2- ................ 500 500 Chloro-.1752-30-3... Acetone Thiosemicarbazide.. ................ 1,000 1,000/10,0001910-42-5... Paraquat Dichloride........ ................ 10 10/10,000 1982-47-4... Chloroxuron................ ................ 500 500/10,0002001-95-8... Valinomycin................ c 1,000 1,000/10,0002032-65-7... Methiocarb................. ................ 10 500/10,000 2074-50-2... Paraquat Methosulfate...... ................ 10 10/10,000 2097-19-0... Phenylsilatrane............ h 100 100/10,000 2104-64-5... EPN........................ ................ 100 100/10,0002223-93-0... Cadmium Stearate........... c 1,000 1,000/10,000 2231-57-4... Thiocarbazide.............. ................ 1,000 1,000/10,0002238-07-5... Diglycidyl Ether........... ................ 1,000 1,000 2275-18-5... Prothoate.................. ................ 100 100/10,000 2497-07-6... Oxydisulfoton.............. h 500 500 2524-03-0... Dimethyl ................ 500 500 Phosphorochloridothioate. 2540-82-1... Formothion................. ................ 100 100 2570-26-5... Pentadecylamine............ ................ 100 100/10,000 2587-90-8... Phosphorothioic Acid, O,O- c, g 500 500 Dimethyl-S-(2-Methylthio) Ethyl Ester. 2631-37-0... Promecarb.................. d, h 1 500/10,000 2636-26-2... Cyanophos.................. ................ 1,000 1,000 2642-71-9... Azinphos-Ethyl............. ................ 100 100/10,000 2665-30-7... Phosphonothioic Acid, ................ 500 500 Methyl-, O-(4-Nitrophenyl) O-Phenyl Ester. 2703-13-1... Phosphonothioic Acid, ................ 500 500 Methyl-, O-Ethyl O-(4- (Methylthio)Phenyl) Ester. 2757-18-8... Thallous Malonate.......... c, h 100 100/10,0002763-96-4... Muscimol................... ................ 1,000 500/10,0002778-04-3... Endothion.................. ................ 500 500/10,000 3037-72-7... Silane, (4- ................ 1,000 1,000 Aminobutyl)Diethoxymethyl-. 3254-63-5... Phosphoric Acid, Dimethyl 4- ................ 500 500 (Methylthio)Phenyl Ester. 3569-57-1... Sulfoxide, 3-Chloropropyl ................ 500 500 Octyl. 3615-21-2... Benzimidazole, 4,5-Dichloro- g 500 500/10,000 2-(Trifluoromethyl)-. 3689-24-5... Sulfotep................... ................ 100 500 3691-35-8... Chlorophacinone............ ................ 100 100/10,000 3734-97-2... Amiton Oxalate............. ................ 100 100/10,000 3735-23-7... Methyl Phenkapton.......... ................ 500 500 3878-19-1... Fuberidazole............... ................ 100 100/10,000 4044-65-9... Bitoscanate................ ................ 500 500/10,000 4098-71-9... Isophorone Diisocyanate.... ................ 100 100 4104-14-7... Phosacetim................. ................ 100 100/10,000 4170-30-3... Crotonaldehyde............. ................ 100 1,000 4301-50-2... Fluenetil.................. ................ 100 100/10,000 4418-66-0... Phenol, 2,2'-Thiobis(4- ................ 100 100/10,000 Chloro-6-Methyl)-. 4835-11-4... Hexamethylenediamine, N,N'- ................ 500 500 Dibutyl-. 5344-82-1... Thiourea, (2-Chlorophenyl)- ................ 100 100/10,000 5836-29-3... Coumatetralyl.............. ................ 500 500/10,000 6533-73-9... Thallous Carbonate......... c, h 100 100/10,000 6923-22-4... Monocrotophos.............. ................ 10 10/10,000 7446-09-5... Sulfur Dioxide............. l 500 500 7446-11-9... Sulfur Trioxide............ b 100 100 7446-18-6... Thallous Sulfate........... ................ 100 100/10,000 7487-94-7... Mercuric Chloride.......... ................ 500 500/10,000 7550-45-0... Titanium Tetrachloride..... ................ 1,000 100 7580-67-8... Lithium Hydride............ b 100 100 7631-89-2... Sodium Arsenate............ ................ 1 1,000/10,000 7637-07-2... Boron Trifluoride.......... ................ 500 500 7647-01-0... Hydrogen Chloride (gas l 5,000 500 only). 7664-39-3... Hydrogen Fluoride.......... ................ 100 100 7664-41-7... Ammonia.................... l 100 500 7664-93-9... Sulfuric Acid.............. ................ 1,000 1,000[[Page 20489]]
7697-37-2... Nitric Acid................ ................ 1,000 1,000 7719-12-2... Phosphorus Trichloride..... ................ 1,000 1,000 7722-84-1... Hydrogen Peroxide (Conc > l 1,000 1,000 52). 7723-14-0... Phosphorus................. b, h 1 100 7726-95-6... Bromine.................... l 500 500 7778-44-1... Calcium Arsenate........... ................ 1 500/10,000 7782-41-4... Fluorine................... k 10 500 7782-50-5... Chlorine................... ................ 10 100 7783-00-8... Selenious Acid............. ................ 10 1,000/10,000 7783-06-4... Hydrogen Sulfide........... l 100 500 7783-07-5... Hydrogen Selenide.......... ................ 10 10 7783-60-0... Sulfur Tetrafluoride....... ................ 100 100 7783-70-2... Antimony Pentafluoride..... ................ 500 500 7783-80-4... Tellurium Hexafluoride..... k 100 100 7784-34-1... Arsenous Trichloride....... ................ 1 500 7784-42-1... Arsine..................... ................ 100 100 7784-46-5... Sodium Arsenite............ ................ 1 500/10,000 7786-34-7... Mevinphos.................. ................ 10 500 7791-12-0... Thallous Chloride.......... c, h 100 100/10,000 7791-23-3... Selenium Oxychloride....... ................ 500 500 7803-51-2... Phosphine.................. ................ 100 500 8001-35-2... Camphechlor................ ................ 1 500/10,000 8065-48-3... Demeton.................... ................ 500 500 10025-73-7.. Chromic Chloride........... ................ 1 1/10,000 10025-87-3.. Phosphorus Oxychloride..... ................ 1,000 500 10026-13-8.. Phosphorus Pentachloride... b 500 500 10028-15-6.. Ozone...................... ................ 100 100 10031-59-1.. Thallium Sulfate........... h 100 100/10,000 10102-18-8.. Sodium Selenite............ h 100 100/10,000 10102-20-2.. Sodium Tellurite........... ................ 500 500/10,000 10102-43-9.. Nitric Oxide............... c 10 100 10102-44-0.. Nitrogen Dioxide........... ................ 10 100 10124-50-2.. Potassium Arsenite......... ................ 1 500/10,000 10140-87-1.. Ethanol, 1,2-Dichloro-, ................ 1,000 1,000 Acetate. 10210-68-1.. Cobalt Carbonyl............ h 10 10/10,000 10265-92-6.. Methamidophos.............. ................ 100 100/10,000 10294-34-5.. Boron Trichloride.......... ................ 500 500 10311-84-9.. Dialifor................... ................ 100 100/10,000 10476-95-6.. Methacrolein Diacetate..... ................ 1,000 1,000 12002-03-8.. Paris Green................ ................ 1 500/10,000 12108-13-3.. Manganese, Tricarbonyl h 100 100 Methylcyclopentadienyl. 13071-79-9.. Terbufosh.................. h 100 100 13171-21-6.. Phosphamidon............... ................ 100 100 13194-48-4.. Ethoprophos................ ................ 1,000 1,000 13410-01-0.. Sodium Selenate............ ................ 100 100/10,000 13450-90-3.. Gallium Trichloride........ ................ 500 500/10,000 13463-39-3.. Nickel Carbonyl............ ................ 10 1 13463-40-6.. Iron, Pentacarbonyl-....... ................ 100 100 14167-18-1.. Salcomine.................. ................ 500 500/10,000 15271-41-7.. Bicyclo[2.2.1]Heptane-2- ................ 500 500/10,000 Carbonitrile, 5-Chloro-6- ((((Methylamino)Carbonyl)O xy)Imino)-, (1s-(1-alpha,2- beta,4-alpha,5-alpha,6E))-. 16752-77-5.. Methomyl................... h 100 500/10,000 17702-41-9.. Decaborane(14)............. ................ 500 500/10,000 17702-57-7.. Formparanated.............. d 1 100/10,000 19287-45-7.. Diborane................... ................ 100 100 19624-22-7.. Pentaborane................ ................ 500 500 20830-75-5.. Digoxin.................... h 10 10/10,000 20859-73-8.. Aluminum Phosphide......... b 100 500 21548-32-3.. Fosthietan................. ................ 500 500 21609-90-5.. Leptophos.................. ................ 500 500/10,000 21908-53-2.. Mercuric Oxide............. ................ 500 500/10,000 21923-23-9.. Chlorthiophos.............. h 500 500 22224-92-6.. Fenamiphos................. ................ 10 10/10,000 23135-22-0.. Oxamyl..................... d 1 100/10,000 23422-53-9.. Formetanate Hydrochloride.. d, h 1 500/10,000 23505-41-1.. Pirimifos-Ethyl............ ................ 1,000 1,000 24017-47-8.. Triazofos.................. ................ 500 500 24934-91-6.. Chlormephos................ ................ 500 500[[Page 20490]]
26419-73-8.. Carbamic Acid, Methyl-, O- d 1 100/10,000 (((2,4-Dimethyl-1, 3- Dithiolan-2- yl)Methylene)Amino)-. 26628-22-8.. Sodium Azide (Na(N3))...... b 1,000 500 27137-85-5.. Trichloro(Dichlorophenyl)Si ................ 500 500 lane. 28347-13-9.. Xylylene Dichloride........ ................ 100 100/10,000 28772-56-7.. Bromadiolone............... ................ 100 100/10,000 30674-80-7.. Methacryloyloxyethyl ................ 100 100 Isocyanateh. 39196-18-4.. Thiofanox.................. ................ 100 100/10,000 50782-69-9.. Phosphonothioic Acid, ................ 100 100 Methyl-, S-(2-(Bis(1- Methylethyl)Amino)Ethyl) O- Ethyl Ester. 53558-25-1.. Pyriminil.................. h 100 100/10,000 58270-08-9.. Zinc, Dichloro(4,4-Dimethyl- ................ 100 100/10,000 5((((Methylamino) Carbonyl)Oxy)Imino)Pentane nitrile)-, (T-4)-. 62207-76-5.. Cobalt, ((2,2'-(1,2- ................ 100 100/10,000 Ethanediylbis (Nitrilomethylidyne)) Bis(6-Fluorophenolato)) (2- )-N,N',O,O')-.
*Only the statutory or final RQ is shown. For more information, see 40 CFR Table 302.4. Notes: a. This chemical does not meet acute toxicity criteria. Its TPQ is set at 10,000 pounds.b. This material is a reactive solid. The TPQ does not default to 10,000 pounds for non-powder, non-molten, nonsolutionform.c. The calculated TPQ changed after technical review as described in the technical support document. d. Indicates that the RQ is subject to change when the assessment of potential carcinogenicity and/or othertoxicity is completed. e. Statutory reportable quantity for purposes of notification under SARA sect 304(a)(2). f. [Reserved] g. New chemicals added that were not part of the original list of 402 substances. h. Revised TPQ based on new or re-evaluated toxicity data.j. TPQ is revised to its calculated value and does not change due to technical review as in proposed rule.k. The TPQ was revised after proposal due to calculation error.l. Chemicals on the original list that do not meet toxicity criteria but because of their high production volumeand recognized toxicity are considered chemicals of concern (``Other chemicals'').[FR Doc. 96-11209 Filed 5-6-96; 8:45 am] BILLING CODE 6560-50-P