The following is a news release from the National Maritime Center (NMC):
(MARTINSBURG, W.Va.) — In accordance with Section 304 of the 2015 Coast Guard Authorization Act, Public Law No. 114-120, mariners will be allowed to request harmonized expiration dates of their Merchant Mariner Credential (MMC) and medical certificate.
CG-MMC Policy Letter 01-18 provides detailed guidelines for those mariners who wish to harmonize the expiration dates of their original or renewed MMC and medical certificate.
For further information, contact the NMC call center via e-mail to IASKNMC@uscg.mil, via online chat, or via phone at 1-888-IASKNMC (427-5662).