Changes to AI letter processing for merchant mariner credentials


(MARTINSBURG, W.Va.) — The National Maritime Center (NMC) is centralizing the processing for submission of all information sent in response to 60- and 90-day awaiting information (AI) letters.

The preferred method of AI documentation submission is email. Email all requested AI documentation to: If you would prefer to mail your AI documentation to the NMC, send it to:

U.S. Coast Guard National Maritime Center
Attention: AI In-Processing
100 Forbes Drive
Martinsburg, WV 25401-7120

Current letters from the NMC requesting merchant mariner credential (MMC) AI documentation direct mariners to send the information to This is in the process of being changed. However, to ensure fastest processing, send AI documentation to

Sending AI documentation to or a Regional Exam Center is still acceptable but may delay the processing of your AI documentation and the issuance of your MMC.

If you have any questions, concerns or feedback, contact the NMC Customer Service Center by emailing or calling 1-888-IASKNMC (427-5662).

– National Maritime Center

By Rich Miller