The Merchant Mariner Credential is the sole credential needed by for merchant mariners as of 2009, and holders of all other credentials need to apply for this credential when their current credential expires. The Coast Guard has compiled a checklist of all documents required to apply for an MMC.
All those applying for a Merchant Mariner Credential (MMC) are required to first obtain a Transportation Worker Identification Credential (TWIC). In order to ensure prompt processing of your MMC, identify yourself as a merchant mariner in your TWIC application.
Application for License
If you've received your TWIC, fill out your application for an MMC license, which is the CG Form 719B application.
According to the Coast Guard, all "original, renewal, and raise of grade officer
& qualified rating endorsement applications" should submit form CG 719K. Entry-level endorsements should submit form 719K/E.
All applicants for "original, renewal and the following raise of grade transactions (any officer endorsement or first qualified rating endorsement)" are required to submit form CG 719P, the USCG Periodic Drug Testing Form.
Other Required Forms
Other forms to include in your application are:
Course completion certificates issued within one year of the application date
Evidence of appropriate sea service
Front and back photocopy of license, merchant mariner's documents and STCW endorsement (if applicable)
Payment receipt for your User Evaluation Fee, which can be paid at www.pay.gov.
Requirements applying only to specific applicants are:
All applicants for original officer endorsements must submit three character references.
If you have a conviction not previously disclosed to the USCG, you must submit a signed conviction statement with your application.
Foreign nationals applying for rating endorsements must submit a photocopy of both sides of their Form I-551 Alien Registration Card.
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