{"data":{"id":"us/46-cfr-169.315","jurisdiction":"us","citation":"46 CFR 169.315","heading":"Ventilation (other than machinery spaces).","body":"(a) All enclosed spaces within the vessel must be properly ventilated in a manner suitable for the purpose of the space.\n(b) A means must be provided to close off all vents and ventilators.\n(c) Living spaces must be ventilated by a mechanical system unless it can be shown that a natural system will provide adequate ventilation in all ordinary weather conditions. Provided that paragraph (a) of this section is satisfied, a vessel having only a natural ventilation system must satisfy the following: V/A≥1.4 where V is the total area of the vents in square inches and A is the product in square feet of the vessel's design waterline length times its maximum beam.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER R—NAUTICAL SCHOOLS","PART 169—SAILING SCHOOL VESSELS","Subpart 169.300—Construction and Arrangement"],"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":"ba53e9eff41f6fb3ff6f1bfe1599e4a4c9c673e4311a457a6a602f2d49a2d8ee","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-169.313","next":"us/46-cfr-169.317"},"notice":"GroundRules: Original legal text. Not legal advice."}