{"data":{"id":"us/46-cfr-154.519","jurisdiction":"us","citation":"46 CFR 154.519","heading":"Piping relief valves.","body":"(a) The liquid relief valve that protects the cargo piping system from liquid pressure exceeding the design pressure must discharge into:\n(1) A cargo tank; or\n(2) A cargo vent mast if that vent mast has a means for the detection and removal of the liquid cargo that is specially approved by the Commandant (CG-ENG).\n(b) A relief valve on a cargo pump that protects the cargo piping system must discharge into the pump suction.","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":"5f40dedd37c7d9e718f23f7ee7ab4ba8a51737c42c5433d1438e2eb2e8d31029","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-154.517","next":"us/46-cfr-154.520"},"notice":"GroundRules: Original legal text. Not legal advice."}