[Code of Federal Regulations]
[Title 49, Volume 2]
[Revised as of October 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR178.245-4]

[Page 845]
 
                        TITLE 49--TRANSPORTATION
 
 CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 178_SPECIFICATIONS FOR PACKAGINGS--Table of Contents
 
               Subpart H_Specifications for Portable Tanks
 
Sec.  178.245-4  Tank mountings.

    (a) Tanks shall be designed and fabricated with mountings to provide 
a secure base in transit. ``Skids'' or similar devices shall be deemed 
to comply with this requirement.
    (b) All tank mountings such as skids, fastenings, brackets, cradles, 
lifting lugs, etc., intended to carry loadings shall be permanently 
secured to tanks in accordance with the requirements of the Code under 
which the tanks were fabricated and shall be designed to withstand 
static loadings in any direction equal to twice the weight of the tank 
and attachments when filled with the lading using a safety factor of not 
less than four, based on the ultimate strength of the material to be 
used. The specific gravity used in determining the static loadings shall 
be shown on the marking required by Sec.  178.245-6(a) and on the report 
required by Sec.  178.245-7(a).
    (c) Lifting lugs or hold-down lugs may be added to either the tank 
or tank mountings. If lifting lugs and hold-down lugs are added directly 
to the tank, they shall be secured to doubling plates welded to the tank 
and located at points of support, except that lifting lugs or hold-down 
lugs with integral bases serving as doubling plates may be welded 
directly to the tank. Each lifting lug and hold-down lug shall be 
designed to withstand static loadings in any direction equal to twice 
the weight of the tank and attachments when filled with the lading using 
a safety factor of not less than four, based on the ultimate strength of 
the material to be used.
    (d) All tank mountings shall be designed so as to prevent the 
concentration of excessive loads on the tank shell.
    (e) A DOT 51 portable tank that meets the definition of 
``container'' in Sec.  450.3(a)(2) of this title must meet the 
requirements of parts 450 through 453 of this title, in addition to the 
requirements of this subchapter.

[29 FR 18972, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
as amended by Amdt. 178-117, 61 FR 50628, Sept. 26, 1996; 64 FR 51919, 
Sept. 27, 1999]

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