[Code of Federal Regulations]
[Title 49, Volume 2]
[Revised as of October 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR173.249]

[Page 552]
 
                        TITLE 49--TRANSPORTATION
 
 CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 173--SHIPPERS--GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS--Table of Contents
 
Subpart F--Bulk Packaging for Hazardous Materials Other Than Class 1 and 
                                 Class 7
 
Sec. 173.249  Bromine.

    When Sec. 172.101 of this subchapter specifies that a hazardous 
material be packaged under this section, only the following bulk 
packagings are authorized, subject to the requirements of subparts A and 
B of part 173 of this subchapter and the special provisions specified in 
column 7 of the Sec. 172.101 table.
    (a) Class DOT 105A300W or 105A500W tank cars. Class 105A500W tank 
cars may be equipped with manway cover plates, pressure relief valves, 
vent valves, and loading/unloading valves that are required on Class 
105A-300W tank cars. Tank cars must conform with paragraphs (d) through 
(f) of this section.
    (b) Specification MC 310, MC 311, MC 312 or DOT 412 cargo tank motor 
vehicles conforming with paragraphs (d) through (f) of this section. The 
total quantity in one tank may not be less than 88 percent nor more than 
96 percent of the volume of the tank. Cargo tanks in bromine service 
built prior to August 31, 1991 may continue in service under the 
requirements contained in Sec. 173.252(a)(4) of this part in effect on 
September 30, 1991.
    (c) Specification IM 101 portable tanks conforming with paragraphs 
(d) through (f) of this section. The total quantity in one tank may not 
be less than 88 percent nor more than 92 percent of the volume of the 
tank.
    (d) The tank must be made from nickel-clad or lead-lined steel 
plate. Nickel cladding or lead lining must be on the inside of the tank. 
Nickel cladding must comprise at least 20 percent of the required 
minimum total thickness. Nickel cladding must conform to ASTM 
Specification B162-69. Lead lining must be at least 4.763 mm (0.188 
inch) thick. All tank equipment and appurtenances in contact with the 
lading must be lined or made from metal not subject to deterioration by 
contact with lading.
    (e) Maximum filling density is 300 percent of the tank's water 
capacity. Minimum filling density is 287 percent of the tank's water 
capacity. Maximum water capacity is 9,253 kg (20,400 pounds) for DOT 
105A300W tank cars. Maximum quantity of lading in DOT 105A300W tank cars 
is 27,216 kg (60,000 pounds). Maximum water capacity is 16,964 kg 
(37,400 pounds) for DOT 105A500W tank cars and DOT 105A500W tank cars 
equipped as described in paragraph (a) of this section. Maximum quantity 
of lading in DOT 105A500W tank cars is 49,895 kg (110,000 pounds).
    (f) Tank shell and head thickness for cargo tank motor vehicles and 
portable tanks must be at least 9.5 mm (0.375 inch) excluding lead 
lining.

[Amdt. 173-224, 55 FR 52663, Dec. 21, 1990, as amended at 56 FR 66275, 
Dec. 20, 1991]