---
kind: "section"
citation: "33 C.F.R. § 157.310"
title: "33"
number: "157.310"
heading: "Exempted vessels: operations."
url: "https://uscodex.org/cfr/33/157.310"
---

# §157.310. Exempted vessels: operations.


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

- (a) The vessel trades only between ports or places within the United States, its territories or possessions;
- (b) The vessel loads cargo only at ports or places listed in the exemption;
- (c) Except as allowed under § [157.41 (a)](/cfr/33/157.41.md?p=a) and [(b)](/cfr/33/157.41.md?p=b) of this part, any ballast water, except segregated ballast discharged in accordance with [§ 157.43(b)](/cfr/33/157.43.md?p=b) of this part, and any tank washing or oil cargo residues are:
  - (1) Retained on board; or
  - (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;
- (d) The vessel loads only those cargoes listed in the exemption; and
- (e) The letter under [§ 157.306](/cfr/33/157.306.md) that grants the exemption is on board the vessel; or
- (f) **The certificate of inspection bearing the following endorsement is on board the vessel—**

## Notes

### Amendments

[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]

### Source

Source: CGD 79-126, 46 FR 3513, Jan. 15, 1981, unless otherwise noted.

### Authority

Authority: 33 U.S.C. 1903; 46 U.S.C. 3703, 3703a (note); Department of Homeland Security Delegation No. 0170.1. Subparts G, H, and I are also issued under section 4115(b), Pub. L. 101-380, 104 Stat. 520; Pub. L. 104-55, 109 Stat. 546.

### Source

Source: CGD 74-32, 40 FR 48283, Oct. 14, 1975, unless otherwise noted.

### Amendments

[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]