33 C.F.R. § 157.118
(a) The owner, operator, and master of a foreign tank vessel under § 157.10(e) or § 157.10a(a)(2) shall ensure that the vessel does not enter the navigable waters of the United States or transfer cargo at a port or place subject to the jurisdiction of the United States unless the vessel has on board—
(1) The Crude Oil Washing Operations and Equipment Manual that—
(2) Either—
(ii) The following letters issued by the Coast Guard:
(b) On January 1, 1986, or 15 years after the date it was delivered to the original owner or 15 years after the completion of a major conversion, whichever is later, the owner, operator, and master of a foreign vessel having a COW system under § 157.10c(b)(2) shall ensure that the vessel does not enter the navigable waters of the United States or transfer cargo at a port or place subject to the jurisdiction of the United States unless the vessel has on board—
(1) The Crude Oil Washing Operations and Equipment Manual that—
(2) Evidence that the COW system passed the required inspections by—
(3) Either—
(ii) The letter of acceptance under § 157.106 and any amending letters issued under § 157.158(c).
(Reporting and Recordkeeping requirements approved by the Office of Management and Budget under control number 1625-0036)
[CGD 82-28, 50 FR 11627, 11630, Mar. 22, 1985, as amended by USCG-2000-7641, 66 FR 55573, Nov. 2, 2001; USCG-2006-25150, 71 FR 39210, July 12, 2006]