{"data":{"id":"us/46-cfr-109.333","jurisdiction":"us","citation":"46 CFR 109.333","heading":"Fire main cutoff valves.","body":"The master or person in charge shall insure that each fire main cutoff valve is open and sealed to prevent closing, except that a cutoff valve may be closed to protect the portion of the fire main system on an exposed deck from freezing.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER I-A—MOBILE OFFSHORE DRILLING UNITS","PART 109—OPERATIONS","Subpart C—Operation and Stowage of Safety Equipment"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"df85179acca4a17ff65f9e5f3e59daae0499cb1d8790d9722bc7bcfaab845cb4","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-109.331","next":"us/46-cfr-109.334"},"notice":"GroundRules: Original legal text. Not legal advice."}