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46 U.S.C. 3703, 9101; Department of Homeland Security Delegation No. 0170.1.
CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted.
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Subscribe to: 46 CFR 154.440
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Nomenclature changes to part 154 appear part 154 appear by CGD-95-072, 60 FR 50466, Sept. 29, 1995, CGD-96-041, 61 FR 50732, Sept. 27, 1996, USCG-2009-0702, 74 FR 49235, Sept. 25, 2009, and USCG-2012-0832, 77 FR 59785, Oct. 1, 2012.
(a) The allowable stresses for an independent tank type A must:
(1) For tank web frames, stringers, or girders of carbon manganese steel or aluminum alloys, meet σB/2.66 or σY/1.33, whichever is less; and
(2) For other materials, be specially approved by the Commandant (CG-ENG).
(b) A greater allowable stress than required in paragraph (a)(1) of this section may be specially approved by the Commandant (CG-ENG) if the equivalent stress (σc) is calculated from the formula in appendix A of this part.
(c) Tank plating must meet the American Bureau of Shipping's deep tank standards, for an internal pressure head that meets § 154.439(a), published in “Rules for Building and Classing Steel Vessels”, 1981.
[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983; CGD 77-069, 52 FR 31630, Aug. 21, 1987]