{"data":{"id":"us/46-cfr-153.491","jurisdiction":"us","citation":"46 CFR 153.491","heading":"Waiver of certain equipment for dedicated cargo tanks.","body":"(a) The Coast Guard waives §§ 153.440(a)(3), 153.480, 153.481, 153.482, and 153.488 and endorses a ship's Certificate of Inspection or Certificate of Compliance allowing a cargo tank to carry a single, specific NLS cargo and no other cargo if the ship's owner—\n(1) Requests a waiver following the procedures in § 153.10; and\n(2) Pledges in writing that while any waiver is in effect the cargo tank will—\n(i) Carry only the NLS cargo listed on the Certificate of Inspection or Certificate of Compliance;\n(ii) Carry no cargo other than the NLS; and\n(iii) Not be washed or ballasted unless the wash water or ballast water is discharged to a reception facility.\n(b) The Coast Guard waives §§ 153.470 and 153.490(a)(2) if—\n(1) The ship's owner requests a waiver following the procedures in § 153.10;\n(2) The Coast Guard has issued a waiver to each of the ship's NLS cargo tanks under paragraph (a) of this section; and\n(3) The ship's owner adds to the ship's operational manual any provisions for preventing NLS discharge specified by the Commandant (CG-ENG) as a condition for issuing the waiver.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER O—CERTAIN BULK DANGEROUS CARGOES","PART 153—SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED GAS HAZARDOUS MATERIALS","Subpart B—Design and 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":"e17c86533b695dd9f5b5e23307364ef509d8c27737f9d9e0adcce8122165131e","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-153.490","next":"us/46-cfr-153.500"},"notice":"GroundRules: Original legal text. Not legal advice."}