USCG Captain’s License (MMC) and TWIC Card Application
Renewing your U.S. Coast Guard (USCG) captain’s license—officially called a Merchant Mariner Credential (MMC)—doesn’t have to be confusing. This step-by-step guide walks you through how to renew your MMC online, required forms, TWIC card rules, and key deadlines so you stay compliant and continue working legally on the water.
Your USCG captain’s license is valid for five years. Before it expires, you need to submit a renewal so that the U.S. Coast Guard can reissue your MMC with a new expiration date. Missing the deadline can mean having to redo exams or lose the ability to legally operate vessels. It’s smart to begin your renewal process 8–12 months before expiration to avoid delays.
A Transportation Worker Identification Credential (TWIC) is a biometric security card issued by the Transportation Security Administration. It’s required for workers who need access to secure maritime facilities and vessels under the Maritime Transportation Security Act. The TSA conducts background checks before issuing a TWIC, and cards are typically valid for five years. You can pre-enroll or renew online, schedule an appointment, and track your application status online.
Yes and no — here’s the key:
USCG requires proof that you hold a valid TWIC or have applied for one as part of your MMC renewal application (46 CFR § 10.227).
However, due to Coast Guard policy, many mariners do not actually need a TWIC to renew their MMC if they don’t need it for work. If you operate vessels that are not required to have a security plan or you don’t need access to secure areas, you can submit a TWIC Exemption Statement with your renewal instead of a valid TWIC card.
➡️ In short: If you need TWIC for your job (e.g., working on regulated vessels), renew or have a current card. If not, use an exemption in your MMC renewal package.
Pre-enroll online or in person at a TWIC enrollment center.
Bring required documents (ID, proof of citizenship/residency).
Get fingerprinted and photographed.
Pay the fee (renewals are usually slightly cheaper than new applications).
You can renew up to one year before expiration or within one year after it expires.
Tip: Start TWIC renewal early—TSA recommends 60 days before you need the card because processing can take 45+ days.
Before starting your online renewal, gather:
A copy of your current MMC (front and back)
CG-719B Renewal Application
CG-719S Sea Service Form
CG-719K Medical Certificate
CG-719P Drug Test Form
Proof of TWIC (valid card, renewal receipt, or exemption memo)
Log into the USCG National Maritime Center (NMC) online portal.
Fill out the CG-719B form for renewal.
Upload your supporting documents in PDF.
Pay the government fee through Pay.gov.
Pro Tip: Ensure all uploaded files are legible and clearly labeled with your name and mariner reference number.
Your medical certificate and drug test (CG-719K and CG-719P) must accompany your renewal:
The medical exam must be current and from an approved provider.
Your drug test must meet Coast Guard/DOT standards.
Submit medical results per USCG instructions — often via email — and include drug test results in your online packet.
Most renewals require documented sea service within the last five years. If you lack sufficient sea time, the Coast Guard may require additional training or exams.
Once the Coast Guard receives your application, you can check its status through the NMC’s merchant mariner credential tracking tools online. This helps you see if your renewal is being processed or if additional information is needed.
You can renew your MMC anytime while valid and up to one year after expiration.
A recent policy allows up to a six-year grace period after expiration to renew without retaking original exams — but your license cannot be used for work while expired.
TWIC can be renewed up to one year before or after its expiration without re-enrollment.
USCG MMC Application FAQs
The USCG MMC application forms are the official documents required to apply for a Merchant Mariner Credential (MMC). These forms include applications for new credentials, renewals, upgrades, and endorsements. You can download the latest USCG MMC application forms PDF from the U.S. Coast Guard website or submit your application through the approved online process.
You can download the latest USCG MMC application forms PDF from the official U.S. Coast Guard National Maritime Center (NMC). Always use the most recent versions to avoid delays in processing your application.
Yes. Depending on your credential type, you can begin your MMC application online by completing the required forms electronically and submitting supporting documents through the National Maritime Center. Some applicants may still need to mail or email certain documents.
You can check your USCG MMC application status through the U.S. Coast Guard National Maritime Center's application tracking system. You'll need your mariner reference number or other identifying information to view your current status.
A USCG MMC application status pending typically means your application is still being reviewed. Common reasons include:
Processing times for a USCG MMC application vary depending on application volume, document completeness, and medical review. Most applications are processed within several weeks once all required documents have been received.
You can start your USCG license renewal application online by completing the required renewal forms and submitting your supporting documents to the National Maritime Center. Ensure your medical certificate, sea service documentation, and any required training certificates are current.
A USCG license status check allows mariners to verify the status of their Merchant Mariner Credential or officer license. The National Maritime Center provides online tools to check whether your credential is active, pending, or issued.
Yes. Most mariners must obtain or apply for a TWIC card before receiving an MMC. The Transportation Worker Identification Credential verifies your identity and security clearance during the credentialing process.
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