[Code of Federal Regulations]
[Title 49, Volume 2]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR180.507]

[Page 1111]
 
                        TITLE 49--TRANSPORTATION
 
 CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 180_CONTINUING QUALIFICATION AND MAINTENANCE OF PACKAGINGS--Table of 
Contents
 
          Subpart F_Qualification and Maintenance of Tank Cars
 
Sec. 180.507  Qualification of tank cars.

    (a) Each tank car marked as meeting a ``DOT'' specification or any 
other tank car used for the transportation of a hazardous material must 
meet the requirements of this subchapter or the applicable specification 
to which the tank was constructed.
    (b) Tank car specifications no longer authorized for construction. 
(1) Tank cars prescribed in the following table are authorized for 
service provided they conform to all applicable safety requirements of 
this subchapter:

------------------------------------------------------------------------
    Specification prescribed in the        Other specifications
          current regulations                   permitted          Notes
------------------------------------------------------------------------
105A200W..............................  105A100W.................      1
105A200ALW............................  105A100ALW...............      1
105A300W..............................  ICC-105, 105A300.........
105A400W..............................  105A400..................
105A500W..............................  105A500..................
105A600W..............................  105A600..................
106A500X..............................  ICC-27, BE-27, 106A500...
106A800X..............................  106A800..................
107A * * * *..........................  .........................      2
------------------------------------------------------------------------
Note 1: Tanks built as Specification DOT 105A100W or DOT 105A100ALW may
  be altered and converted to DOT 105A200W and DOT 105A200ALW,
  respectively.
Note 2: The test pressures of tanks built in the United States between
  January 1, 1941 and December 31, 1955, may be increased to conform to
  Specification 107A. Original and revised test pressure markings must
  be indicated and may be shown on the tank or on a plate attached to
  the bulkhead of the car. Tanks built before 1941 are not authorized.

    (2) For each tank car conforming to and used under an exemption 
issued before October 1, 1984, which authorized the transportation of a 
cryogenic liquid in a tank car, the owner or operator shall remove the 
exemption number stenciled on the tank car and stamp the tank car with 
the appropriate Class DOT-113 specification followed by the applicable 
exemption number. For example: DOT-113D60W-E * * * * (asterisks to be 
replaced by the exemption number). The owner or operator marking a tank 
car in this manner shall retain on file a copy of the last exemption in 
effect during the period the tank car is in service. No person may 
modify a tank car marked under this paragraph unless the modification is 
in compliance with an applicable requirement or provision of this 
subchapter.
    (3) Specification DOT-113A175W, DOT-113C60W, DOT-113D60W, and DOT-
113D120W tank cars may continue in use, but new construction is not 
authorized.
    (4) Class DOT 105A and 105S tank cars used to transport hydrogen 
chloride, refrigerated liquid under the terms of DOT-E 3992 may continue 
in service, but new construction is not authorized.
    (5) Specification DOT-103A-ALW, 103AW, 103ALW, 103ANW, 103BW, 103CW, 
103DW, 103EW, and 104W tank cars may continue in use, but new 
construction is not authorized.

[Amdt. 180-8, 60 FR 49079, Sept. 21, 1995, as amended at 68 FR 48572, 
Aug. 14, 2003]