Mariner Credentialing

9/24/2018: Merchant Mariner Credentialing application package submission guidelines

The National Maritime Center posted guidance on its website to help mariners submit a complete and accurate Merchant Mariner Credential (MMC) application package. These guidance documents are intended to aid mariner applicants in properly completing the CG-719B Application for MMC and the Evidence of Sea Service forms. To ensure mariners receive credentials within the NMC-stated processing goal of 30 days, proper submission of this documentation is essential.

Two guides are currently available to assist mariner applicants in submitting application packages:

• How to Fill Out the CG-719B Form, which can be found by clicking on the Forms link, located on the NMC homepage at

• Sea Service Instructions, which can be found by clicking on the MMC Evaluation link, located on the NMC homepage at

For questions or concerns, visit the NMC website or contact the NMC Customer Service Center by e-mailing, by using the NMC online chat system, or by calling 1-888-IASKNMC (427-5662).

This blog is not a replacement or substitute for the formal posting of regulations and updates or existing processes for receiving formal feedback of the same. Links provided on this blog will direct the reader to official source documents, such as the Federal Register, Homeport and the Code of Federal Regulations. These documents remain the official source for regulatory information published by the Coast Guard.

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