33 CFR § 151.21 - Ships of countries not party to MARPOL 73/78.
(a) Each oil tanker of 150 gross tons and above and each other ship of 400 gross tons and above, operated under the authority of a country not a party to MARPOL 73/78, must have on board valid documentation showing that the ship has been surveyed in accordance with and complies with the requirements of MARPOL 73/78. Evidence of compliance may be issued by either the government of a country that is party to MARPOL 73/78 or a recognized classification society.
(b) Evidence of compliance must contain all of the information in, and have substantially the same format as, the IOPP Certificate.
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