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Title 46

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Displaying title 46, up to date as of 7/17/2026. Title 46 was last amended 6/30/2026.
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  1. Title 46 —Shipping
  2. Chapter I —Coast Guard, Department of Homeland Security
  3. Subchapter O —Certain Bulk Dangerous Cargoes
  4. Part 154 —Safety Standards for Self-Propelled Vessels Carrying Bulk Liquefied Gases
  5. Appendix A to Part 154
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eCFR Content

The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.

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Editorial Note on Part 154

Editorial Note:

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.

Appendix A to Part 154—Equivalent Stress

I. Equivalent stress (σ c) is calculated by the following formula or another formula specially approved by the Commandant (CG-522) as equivalent to the following:

where:

σx = total normal stress in “x” direction.

σy = total normal stress in “y” direction.

τxy = total shear stress in “xy” plane.

II. When the static and dynamic stresses are calculated separately, the total stresses in paragraph I are calculated from the following formulae or another formulae specially approved by the Commandant (CG-522) as equivalent to the following:

III. Each dynamic and static stress is determined from its acceleration component and its hull strain component from hull deflection and torsion.

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983]

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