NMC: New laminate to be used for Merchant Mariner Credentials

Due to ongoing supply chain issues, the National Maritime Center (NMC) is temporarily using an alternate laminate for Merchant Mariner Credentials (MMCs). This laminate has the same feel and print-protective qualities as the current laminate. The only difference is the lack of holograms when the MMC is turned to the light.

These MMCs are valid and can be verified using the credential verification tool. The tool may be accessed from the National Maritime Center (NMC) Home page:

1. Click Credential Verification in the center navigation buttons.
2. Select Single Mariner Search from the bottom drop-down menu, and then enter the mariner’s reference number and last name.
3. Once on this page, both the MMC and the medical certificate can be validated.

Although not required, it is recommended that you keep a copy of this bulletin with your MMC. Mariners may contact our Customer Service Center via Live Chat or by calling 1-888-IASKNMC (427-5662) for assistance. For a complete list of important announcements, see NMC Announcements on the NMC Home Page.


Bradley W. Clare
Captain, U.S. Coast Guard
Commanding Officer