{"data":{"id":"us/33-cfr-157.39","jurisdiction":"us","citation":"33 CFR 157.39","heading":"Machinery space bilges.","body":"(a) A tank vessel may discharge an oily mixture from a machinery space bilge that is combined with an oil cargo residue if the vessel discharges in compliance with § 157.37.\n(b) A tank vessel may discharge an oily mixture from a machinery space bilge that is not combined with an oil cargo residue if the vessel:\n(1) Is proceeding en route;\n(2) Is discharging an effluent with an oil content of less than 15 parts per million; and\n(3) Has in operation an oil discharge monitoring and control system in compliance with § 157.12 and oil separating equipment in compliance with 33 CFR 155.380.","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 C—Vessel Operation"],"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":"d6a0f05b66e29ea2ba4b8e052addc68cbc96ecb1081b378811c5f88c058701ff","source_id":"us-cfr","stale":true,"prev":"us/33-cfr-157.37","next":"us/33-cfr-157.41"},"notice":"GroundRules: Original legal text. Not legal advice."}