7/21/2017: Reminder – national merchant mariner credential extension expires September 30

The Coast Guard granted extensions of national endorsements for any mariner whose Merchant Mariner Credential (MMC) expired on or after Dec. 1, 2016. The extension was effective immediately and remains valid until Sept. 30, 2017. Mariners are not authorized to sail on an expired MMC after Sept. 30, 2017. Mariners are encouraged to apply for renewal as soon as possible. Overall processing time for applications remains approximately 60 days. The extension does not apply to STCW endorsements or medical certificates.