[Code of Federal Regulations]

[Title 49, Volume 2]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 49CFR173.23]



[Page 438]

 

                        TITLE 49--TRANSPORTATION

 

   CHAPTER I--PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, 

                      DEPARTMENT OF TRANSPORTATION

 

PART 173_SHIPPERS_GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS

--Table of Contents

 

     Subpart B_Preparation of Hazardous Materials for Transportation

 

Sec. 173.23  Previously authorized packaging.



    (a) When the regulations specify a packaging with a specification 

marking prefix of ``DOT,'' a packaging marked prior to January 1, 1970, 

with the prefix of ``ICC'' may be used in its place if the packaging 

otherwise conforms to applicable specification requirements.

    (b) [Reserved]

    (c) After July 2, 1982, a seamless aluminum cylinder manufactured in 

conformance with and for use under DOT special permit (SP) or exemption 

(E) 6498, 7042, 8107, 8364 or 8422 may be continued in use if marked 

before or at the time of the next retest with either the specification 

identification ``3AL'' immediately above the special permit or exemption 

number, or the DOT mark (e.g., DOT 3AL 1800) in proximity to the special 

permit or exemption marking.

    (d) Cylinders (spheres) manufactured and marked under DOT special 

permit (SP) or exemption (E) 6616 prior to January 1, 1983, may be 

continued in use if marked before or at the time of the next retest with 

the specification identification ``4BA'' near the special permit or 

exemption marking.

    (e) After October 1, 1984, cylinders manufactured for use under 

special permit (SP) or exemption (E) 6668 or 8404 may be continued in 

use, and must be marked ``DOT-4LXXXYY'' (XXX to be replaced by the 

service pressure, YY to be replaced by the letters ``AL'', if 

applicable) in compliance with Specification 4L (Sec. 178.57 of this 

subchapter) on or before January 1, 1986. The ``DOT-4LXXXYY'' must 

appear in proximity to other required special permit or exemption 

markings.

    (f) An MC 331 cargo tank motor vehicle must conform to structural 

integrity requirements in Sec. 178.337-3 or to corresponding 

requirements in effect at the time of manufacture.

    (g) A non-bulk packaging manufactured, tested, marked, and certified 

on or before September 30, 1996, in accordance with the applicable 

provisions of subparts L and M of part 178 of this subchapter in effect 

on September 30, 1995, may be used as authorized by this subchapter if 

the packaging conforms to all requirements applicable at the time of 

manufacture. In addition, such a packaging may be reused as authorized 

by Sec. 173.28 without a nominal thickness marking, if it conforms to 

the minimum thickness criteria prescribed in Sec. 173.28(b)(4).



[Amdt. 173-3, 33 FR 14921, Oct. 4, 1968]



    Editorial Note: For Federal Register citations affecting Sec. 

173.23, see the List of CFR Sections Affected which appears in the 

Finding Aids section of the printed volume and on GPO Access.