United States Coast Guard Merchant Mariner 2024 Tacoma. The coast guard’s mcp issues merchant mariner credentials (mmc) and medical certificates to applicants who have met the regulatory requirements. The four courses are collections of coast guard training and qualifications that meet credentialing requirements.

The following policies regarding merchant mariner credentialing are in effect: Coast guard announced a new merchant mariner credential (mmc) set to launch on march 1, 2024.