[Code of Federal Regulations]
[Title 49, Volume 2]
[Revised as of October 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR180.603]

[Page 1165-1166]
 
                        TITLE 49--TRANSPORTATION
 
   CHAPTER I--PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, 
                      DEPARTMENT OF TRANSPORTATION
 
PART 180_CONTINUING QUALIFICATION AND MAINTENANCE OF PACKAGINGS--Table 
 
        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,

[[Page 1166]]

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.