StacksVerified U.S. regulatory reference

46 CFR §154.620

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Plates, forgings and forged or rolled fittings, and rolled, forged or extruded bars and shapes for cargo tanks, secondary barriers, and process pressure vessels for a design temperature below −55 °C (−67 °F) and down to −165 °C (−265 °F) must:
  1. (a)Meet § 54.25-10(b)(2), § 54.25-15, or § 54.25-20 of this chapter; or
  2. (b)Be of an aluminum alloy that is specially approved by the Commandant (CG-ENG).