---
kind: "section"
citation: "33 C.F.R. § 81.9"
title: "33"
number: "81.9"
heading: "Certificate of Alternative Compliance: Contents."
url: "https://uscodex.org/cfr/33/81.9"
---

# §81.9. Certificate of Alternative Compliance: Contents.


The Chief of the Prevention Division issues the Certificate of Alternative Compliance to the vessel based on a determination that it cannot comply fully with 72 COLREGS light, shape, and sound signal provisions without interference with its special function. This Certificate includes—

- (a) Identification of the vessel as supplied in the application under [§ 81.5(a)(2)](/cfr/33/81.5.md?p=a-2);
- (b) The provision of the 72 COLREGS for which the Certificate authorizes alternative compliance;
- (c) A certification that the vessel is unable to comply fully with the 72 COLREGS lights, shape, and sound signal requirements without interference with its special function;
- (d) A statement of why full compliance would interfere with the special function of the vessel;
- (e) The required alternative installation;
- (f) A statement that the required alternative installation is in the closest possible compliance with the 72 COLREGS without interfering with the special function of the vessel;
- (g) The date of issuance;
- (h) A statement that the Certificate of Alternative Compliance terminates when the vessel ceases to be usually engaged in the operation for which the certificate is issued.

## Notes

### Amendments

[CGD 77-136, 47 FR 13800, Apr. 1, 1982, as amended by USCG-2018-0874, 84 FR 30878, June 28, 2019]

### Authority

Authority: 33 U.S.C. 1607; E.O. 11964; 49 CFR 1.46.

### Source

Source: CGD 76-130, 42 FR 17111, Mar. 31, 1977, unless otherwise noted. Redesignated by CGD 81-017, 46 FR 28154, May 26, 1981.

### Amendments

[CGD 77-136, 47 FR 13800, Apr. 1, 1982, as amended by USCG-2018-0874, 84 FR 30878, June 28, 2019]