33 CFR § 89.9 - 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 Inland Rules 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 § 89.5(a)(2);
(b) The provision of the Inland Rules for which the Certificate authorizes alternative compliance;
(c) A certification that the vessel is unable to comply fully with the Inland Rules light, 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 Inland Rules 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.