StacksVerified U.S. regulatory reference

46 CFR §154.436

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The Po of a semi-membrane tank must not exceed 24.5 kPa gauge (3.55 psig) unless special approval by the Commandant (CG-ENG) allows a Po between 24.5 kPa gauge (3.55 psig) and 69 kPa gauge (10 psig).