{"data":{"id":"us/33-cfr-157.27","jurisdiction":"us","citation":"33 CFR 157.27","heading":"Discharges: Tank vessels carrying oil exclusively on rivers, lakes, bays, sounds, and the Great Lakes, and seagoing tank vessels of less than 150 gross tons.","body":"Unless a tank vessel carrying oil exclusively on rivers, lakes, bays, sounds, and the Great Lakes, or a seagoing tank vessel of less than 150 gross tons discharges clean ballast or segregated ballast, the vessel must:\n(a) Retain on board any oily mixture; or\n(b) Transfer an oily mixture to a reception facility.","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":"aaa6249dc4b1a5bcafe089ed27d8edc68b9c3336114c4b599e16d54d908b5348","source_id":"us-cfr","stale":true,"prev":"us/33-cfr-157.26","next":"us/33-cfr-157.28"},"notice":"GroundRules: Original legal text. Not legal advice."}