Production of credentials by merchant mariner signing shipping articles.

On engagement for a voyage upon which shipping articles are required, each merchant mariner must provide to the master or individual in charge of the vessel a merchant mariner credential with endorsements required by law for the service the mariner would perform. [CGD 94-004, 61 FR 56637, Nov. 4, 1996, as amended by USCG-2006-24371, 74 FR 11260, Mar. 16, 2009; USCG-2004-17914, 78 FR 77999, Dec. 24, 2013; USCG-2021-0834, 89 FR 102337, Dec. 17, 2024]