The owner, operator, and master of each vessel that has been granted an exemption under this subpart must ensure that:

1. (a) The vessel trades only between ports or places within the United States, its territories or possessions;
2. (b) The vessel loads cargo only at ports or places listed in the exemption;

3. (c) Except as allowed under § 157.41 (a) and (b) of this part, any ballast water, except segregated ballast discharged in accordance with § 157.43(b) of this part, and any tank washing or oil cargo residues are:

   1. (1) Retained on board; or
   2. (2) Transferred to a shore-based reception facility that is listed in the application for exemption, or in the case of an emergency or a shipyard entry, an alternative acceptable to the cognizant Officer in Charge, Marine Inspection;
4. (d) The vessel loads only those cargoes listed in the exemption; and
5. (e) The letter under § 157.306 that grants the exemption is on board the vessel; or

6. (f) The certificate of inspection bearing the following endorsement is on board the vessel:

   Exempted under 33 CFR 157.306 from the requirements of (33 CFR 157.10a or 157.10c, whichever is appropriate, will be inserted). This vessel may not discharge cargo in any foreign port, nor may it load cargo in a port other than the following: (a list of ports contained in the application that is accepted by the Coast Guard for the exempted vessel will be inserted here).

[CGD 79-126, 46 FR 3513, Jan. 15, 1981, as amended by CGD 82-28, 50 FR 11630, Mar. 22, 1985; USCG-2000-7641, 66 FR 55573, Nov. 2, 2001]