StacksVerified U.S. regulatory reference

46 CFR §154.546

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)The rated closing flow of vapor or liquid cargo for an excess flow valve must be specially approved by the Commandant (CG-ENG).
  2. (b)An excess flow valve allowed under § 154.532(b) must close automatically at the rated closing flow.