{"data":{"id":"us/46-cfr-182.435","jurisdiction":"us","citation":"46 CFR 182.435","heading":"Integral fuel tanks.","body":"(a) Gasoline fuel tanks must be independent of the hull.\n(b) Diesel fuel tanks may not be built integral with the hull of a vessel unless the hull is made of:\n(1) Steel;\n(2) Aluminum; or\n(3) Fiber reinforced plastic when:\n(i) Sandwich construction is not used; or\n(ii) Sandwich construction is used with only a core material of closed cell polyvinyl chloride or equivalent.\n(c) During the initial inspection for certification of a vessel, integral fuel tanks must withstand a hydrostatic pressure test of 35 kPa (5 psig), or the maximum pressure head to which they may be subjected in service, whichever is greater. A standpipe of 3.5 meters (11.5 feet) in height attached to the tank may be filled with water to accomplish the 35 kPa (5 psig) test.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER T—SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS)","PART 182—MACHINERY INSTALLATION","Subpart D—Specific Machinery Requirements"],"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":"ad36ffee0799c432b65909cf222ebe991b271404dcaf2cf5819474888cff37cf","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-182.430","next":"us/46-cfr-182.440"},"notice":"GroundRules: Original legal text. Not legal advice."}