Merchant Mariner Credential (MMC) Application Packet
Issued by U.S. Coast Guard – National Maritime Center
The MMC application packet is the complete submission the National Maritime Center evaluates: the CG-719B application plus the medical evaluation (CG-719K or CG-719K/E), drug-test documentation (CG-719P or random-program letter), sea service evidence (service letters, discharges, or CG-719S), TWIC proof, training certificates, and fees. The NMC publishes per-endorsement checklists covering age, drug testing, examination, fees, sea service, and TWIC requirements.
Also known as: MMC packet · Merchant mariner application package · NMC application checklist
Key facts
Employees complete · Clinicians fill out · Submitted to regulator
- When it’s used
- Assembled for every MMC transaction — original, renewal, raise of grade, new endorsement, or duplicate. Incomplete packets are the leading cause of NMC processing delays.
- Who fills it out
- The mariner assembles the packet; the examining practitioner and Medical Review Officer complete the medical and drug-testing components.
- Who signs
- Each component form carries its own signature: applicant (CG-719B), medical practitioner (CG-719K/K-E), MRO (CG-719P), and vessel owner/operator/master (sea service).
- Where it goes
- Submit as one package to the USCG National Maritime Center via the ASAP portal, email, mail, or a Regional Examination Center.
- Electronic submission
- Supported — the ASAP portal accepts the complete packet and follow-up documents.
Sources & citations
Every form we publish traces to an authoritative government source. We cite the issuing agency, the underlying statute, and the operative regulation so you can verify scope and signing authority for your own records.
Issuing agency
USCG National Maritime Center — Application Checklists
Last verified 2026-07-07
VerifiedOpenRegulation
46 CFR Part 10 — Merchant Mariner Credential
Last verified 2026-07-07
VerifiedOpen
Attribution. Checklists and component forms authored and maintained by the U.S. Coast Guard National Maritime Center. BlueHive does not modify the underlying government PDF; the file you download is the agency original.
Related forms
These forms are commonly filed alongside or in place of this one.
- USCG Mariner
CG-719B — Application for Merchant Mariner Credential (MMC)
CG-719B is the base application every mariner files with the National Maritime Center for a Merchant Mariner Credential — original issuance, renewal, raise of grade, new endorsement, or duplicate — and for a Medical Certificate when applying concurrently. The rest of the application packet (medical, drug test, sea service) attaches to this form.
View form - USCG Mariner
CG-719K — Application for Merchant Mariner Medical Certificate
CG-719K is the medical evaluation form a licensed practitioner completes for any mariner applying for or renewing a Merchant Mariner Credential (MMC) or Medical Certificate. The National Maritime Center reviews submissions and issues the certificate.
View form - USCG Mariner
CG-719K/E — Application for Medical Certificate — Entry-Level Ratings
CG-719K/E is the abbreviated medical evaluation report for mariners applying only for entry-level ratings (such as ordinary seaman, wiper, or steward’s department). It is shorter than the full CG-719K; any application including an officer or STCW endorsement requires the full CG-719K instead.
View form - Drug Testing
CG-719P — Periodic Drug Testing Form
CG-719P documents a negative chemical test for dangerous drugs as required for original issuance and renewal of mariner credentials.
View form - USCG Mariner
CG-719S — Small Vessel Sea Service Form
CG-719S documents sea service on small vessels toward Merchant Mariner Credential eligibility — vessel name and number, gross tonnage, propulsion, waters navigated, dates, and the capacity served. Under 46 CFR 10.232(a)(4), owners of vessels under 200 GRT may attest to their own service with proof of ownership.
View form
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