33 C.F.R. § 96.320
(a) A safety management audit is any of the following:
(3) Periodic audits including—
(c) Actions required during safety management audits for a company and their U.S. vessel(s) are—
(d) Safety management audits for a company and their U.S. vessel(s) are required—
(2) Before issuing or renewing a Safety Management Certificate, and to maintain the validity of a Safety Management Certificate, as described in § 96.340 of this part.
However, any safety management audit for the purpose of verifying a vessel's safety management system will not be scheduled or conducted for a company's U.S. vessel unless the company first has undergone a safety management audit of the company's safety management system, and has received its Document of Compliance certificate.
(e) Requests for all safety management audits for a company and its U.S. vessel(s) must be communicated—
(f) If a non-conformity with a safety management system is found during an audit, it must be reported in writing by the auditor: