{"data":{"id":"us/46-cfr-154.546","jurisdiction":"us","citation":"46 CFR 154.546","heading":"Excess flow valve: Closing flow.","body":"(a) The rated closing flow of vapor or liquid cargo for an excess flow valve must be specially approved by the Commandant (CG-ENG).\n(b) An excess flow valve allowed under § 154.532(b) must close automatically at the rated closing flow.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER O—CERTAIN BULK DANGEROUS CARGOES","PART 154—SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES","Subpart C—Design, Construction and Equipment"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"2d675e2a048adf2433a6a9f4e8110c82e57b8672c83ec08c514a68078ad1a1e6","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-154.544","next":"us/46-cfr-154.548"},"notice":"GroundRules: Original legal text. Not legal advice."}