[Code of Federal Regulations]
[Title 49, Volume 2]
[Revised as of October 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR180.603]

[Page 1167]
 
                        TITLE 49--TRANSPORTATION
 
   CHAPTER I--PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, 
                      DEPARTMENT OF TRANSPORTATION
 
PART 180_CONTINUING QUALIFICATION AND MAINTENANCE OF PACKAGINGS--Table 
of Contents
 
        Subpart G_Qualification and Maintenance of Portable Tanks
 
Sec.  180.603  Qualification of portable tanks.

    (a) Each portable tank used for the transportation of hazardous 
materials must be an authorized packaging.
    (b) To qualify as an authorized packaging, each portable tank must 
conform to the requirements of this subchapter and the applicable design 
specification to which the portable tank was constructed.
    (c) The following portable tanks are authorized for use provided 
they conform to all applicable safety requirements of this subchapter: 
51, 56, 57, 60, IM 101, IM 102 and UN portable tanks.
    (d) A portable tank that also meets the definition of ``container'' 
in 49 CFR 450.3(a)(3) must conform to the requirements in parts 450 
through 453 of this title for compliance with Annex II of the Convention 
for Safe Containers (CSC).
    (e) Exemption portable tanks based on DOT 51 portable tanks. The 
owner of a portable tank constructed in accordance with and used under 
an exemption issued prior to August 31, 1996, which was in conformance 
with the requirements for Specification DOT 51 portable tanks with the 
exception of the location of fill and discharge outlets, shall examine 
the portable tank and its design to determine if it meets the outlet 
requirements in effect on October 1, 1996. If the owner determines that 
the portable tank is in compliance with all requirements of the DOT 51 
specification, the exemption number stenciled on the portable tank shall 
be removed and the specification plate (or a plate placed adjacent to 
the specification plate) shall be durably marked ``DOT 51-E*****'' 
(where ***** is to be replaced by the exemption number). During the 
period the portable tank is in service, and for one year thereafter, the 
owner of the portable tank must retain on file, at its principal place 
of business, a copy of the last exemption in effect.