StacksVerified U.S. regulatory reference

46 CFR §154.630

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)If a material of a cargo tank is not listed in §§ 154.610, 154.615 or § 154.620, the allowable stress of that material must be specially approved by the Commandant (CG-ENG).
  2. (b)For cargo tanks of aluminum alloys with welded connections, the minimum tensile strength (σB) for the calculations under § 154.440, § 154.447 and § 154.450 must be the minimum tensile strength of the alloy in the annealed condition.
  3. (c)Increased yield strength and tensile strength of a material at low temperature for independent tanks type A, B, and C must be specially approved by the Commandant (CG-ENG).