Merchant Mariner Credential Info
The U.S. Coast Guard’s HOMEPORT website (homeport.uscg.mil) is currently down.
Mariners needing information about their Merchant Mariner Credential (MMC) are advised to:
1. Email the National Maritime Center (NMC) at iasknmc@uscg.mil, or
2. Call the NMC directly at 1-888-427-5662.
The Marine Exchange will continue to monitor the situation and will share updates as soon as more information becomes available.
