{"data":{"id":"us/33-cfr-157.162","jurisdiction":"us","citation":"33 CFR 157.162","heading":"Crude oil washing during a voyage.","body":"The master of a tank vessel having a COW system under § 157.10(e), § 157.10a(a)(2), or § 157.10c(b)(2) shall ensure that each cargo tank that is crude oil washed during a voyage other than a ballast voyage—\n(a) Remains empty so that the tank may be inspected upon arrival at the next discharge port; and\n(b) If it is to be used as a ballast tank when leaving the discharge port, is ballasted before the vessel departs from that discharge port so that the tank may be inspected under § 157.140(a)(2).","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":"289791609151427b1cd7273840e4cc4fd301fd54647d02840b9fb0a660d1b6b9","source_id":"us-cfr","stale":true,"prev":"us/33-cfr-157.160","next":"us/33-cfr-157.164"},"notice":"GroundRules: Original legal text. Not legal advice."}