{"data":{"id":"us/33-cfr-157.132","jurisdiction":"us","citation":"33 CFR 157.132","heading":"Cargo tanks: Hydrocarbon vapor emissions.","body":"Each tank vessel having a COW system under § 157.10a(a)(2) or § 157.10c(b)(2) without sufficient segregated ballast tanks or dedicated clean ballast tanks to allow the vessel to depart from any port in the United States without ballasting cargo tanks must have—\n(a) A means to discharge hydrocarbon vapors from each cargo tank that is ballasted to a cargo tank that is discharging crude oil; or\n(b) Any other means accepted by the Commandant that prevents hydrocarbon vapor emissions when the cargo tanks are ballasted in port.","path":["Title 33—Navigation and Navigable Waters","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER O—POLLUTION","PART 157—RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL IN BULK","Subpart D—Crude Oil Washing (COW) System on Tank Vessels"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-33.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:35Z","sha256":"db196e60cdd695188e661200099bb8b5298d56e245d8d881740e3b911b882c42","source_id":"us-cfr","stale":true,"prev":"us/33-cfr-157.130","next":"us/33-cfr-157.134"},"notice":"GroundRules: Original legal text. Not legal advice."}