{"data":{"id":"us/46-cfr-154.310","jurisdiction":"us","citation":"46 CFR 154.310","heading":"Cargo piping systems.","body":"Cargo liquid or vapor piping must:\n(a) Be separated from other piping systems, except where an interconnection to inert gas or purge piping is required by § 154.901(a);\n(b) Not enter or pass through any accommodation, service, or control space;\n(c) Except as allowed under § 154.703, not enter or pass through a machinery space other than a cargo pump or compressor room;\n(d) Be in the cargo area except:\n(1) As allowed under § 154.703;\n(2) Bow and stern loading piping; and\n(3) Emergency jettisoning piping.\n(e) Be above the weather deck except:\n(1) As allowed under § 154.703;\n(2) Pipes in a trunk traversing void spaces above a cargo containment system; and\n(3) Pipes for draining, venting, or purging interbarrier and hold spaces;\n(f) Connect into the cargo containment system above the weather deck except:\n(1) Pipes in a trunk traversing void spaces above a cargo containment system; and\n(2) Pipes for draining, venting, or purging interbarrier and hold spaces.\n(g) Be inboard of the transverse cargo tank location required by § 154.235, except for athwartship shore connection manifolds not subject to internal pressure at sea.","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":"e6c0805b4a147cb4539673e68e6422fcf5a9cc7bb176ca66dc6eba2e0726f090","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-154.305","next":"us/46-cfr-154.315"},"notice":"GroundRules: Original legal text. Not legal advice."}