{"data":{"id":"us/33-cfr-157.49","jurisdiction":"us","citation":"33 CFR 157.49","heading":"Instruction manual.","body":"The master of a tank vessel shall ensure that the instruction manual under § 157.23 is available and used when the cargo or ballast systems are operated.","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":"424038ebe61dfdc476e06b01d17323b501cc769eabb4cb27b1c533859fcf6caa","source_id":"us-cfr","stale":true,"prev":"us/33-cfr-157.47","next":"us/33-cfr-157.100"},"notice":"GroundRules: Original legal text. Not legal advice."}