StacksVerified U.S. regulatory reference

46 CFR §154.425

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The design of the hull structure and the design of the membrane tank system, that includes the membrane tank, secondary barrier, including welds, the supporting insulation, and pressure control equipment, must be specially approved by the Commandant (CG-ENG).