U.S. Coast Guard Making Changes to Merchant Mariner Credential Format

The U.S. Coast Guard is set to introduce a new merchant mariner credential (MMC) format on March 1, 2024, marking the first significant revision of the credential in nearly a decade. The redesigned MMC is aimed at improving both the quality of service and security within the Marine Transportation System (MTS).

MMCs are required for U.S. mariners working on commercially operated vessels like passenger boats, tug and barges, offshore supply vessels, and deep draft ocean-going cargo vessels, both nationally and internationally. The current MMC passport-style booklet will be replaced with a single-page certificate.

The redesign comes as the Coast Guard National Maritime Center’s existing passport style credential printers have become outdated and are in need of replacement. The new credentials will be printed on 8.5″ x 11″ waterproof synthetic paper from the Government Printing Office (GPO). The updated MMC will include improved security features, such as anti-copy measures, micro-printing, foiling, and intricate patterns.

Mariners currently holding the passport-style credentials do not need to worry as these will not be replaced immediately. The new MMC will be issued during their next application process with the Coast Guard.

Looking ahead, the Coast Guard also plans to introduce an electronic credential or E-credential, which will meet all domestic and international requirements. Mariners will also have the option to obtain paper or other non-electronic versions.

For more information about the new MMC, mariners can visit the National Maritime Center’s website.

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