Merchant mariner credentials and medical certificates (national endorsements only) that expired in December 2018, January 2019, February 2019, March 2019, April 2019, May 2019, June 2019, or July 2019 will remain valid only until August 31, 2019. No further credential extensions are authorized.
National Maritime Center announces additional credential extensions due to the lapse in appropriations

Merchant mariner credentials and medical certificates (national endorsements only) that expire in December 2018, January 2019, February 2019, March 2019, April 2019, May 2019, June 2019, or July 2019 are extended as valid until August 31, 2019. Mariners who are actively working on expired credentials that meet the expiration criteria must carry the expired credential with a copy of the attached letter.
5/6/2019: Mitigation efforts due to lapse in fiscal year 2019 appropriations and partial government shutdown
Due to a continued backlog of credential applications and increased net processing time of both mariner credential applications and medical certificate applications caused by the lapse in appropriations and shutdown of National Maritime Center operations, several updated actions are being taken. These actions involve merchant mariner credentials and certain medical certificates.
1/24/2019: National Maritime Center issues new bulletin regarding lapse in appropriations and mariner credentials
In this post, the National Maritime Center provides updated information for credentialed mariners who may be affected due to the lapse in appropriations and partial government shutdown.
1/24/2019: Commercial vessel safety during lapse in appropriations
With passage of a continuing resolution, Marine Safety Information Bulletin 01-19 is cancelled effective Feb. 1, 2019.