StacksVerified U.S. regulatory reference

33 CFR §157.310

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
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: