How to Apply for a USCG License: CG-719B, Sea Service and TWIC

Name the exact credential before filling out a form

A USCG “captain’s license” is not one universal application. OUPV, Master, deck officer, engine, towing, and other paths can have different service, training, medical, and examination requirements. Start by writing the exact credential, endorsement, route, and transaction type at the top of your application folder.

For example, “OUPV Near Coastal — original application” is more useful than “captain’s license.” That decision controls which NMC checklist you should follow and which examination modules belong in your study plan.

Step 1: Check the current NMC checklist

The National Maritime Center merchant mariner credential page organizes the application by transaction. Use the current page to confirm whether you are applying for an original credential, renewal, raise of grade, modification, duplicate, replacement, or another action.

Do not begin with a random PDF found in a search result. Forms and submission instructions can be revised. Save the current page and note the review date so you know which instructions your packet was built around.

Step 2: Check TWIC and identity requirements

The NMC application guidance tells applicants to address TWIC or an applicable exemption as part of the credential process. Verify your current status before you assemble the rest of the packet. An expired document, inconsistent name, or document sent to the wrong workflow can delay review.

Keep identity records consistent across the application, supporting forms, sea-service records, and correspondence. If a name or address has changed, check whether your selected transaction is a modification, replacement, or another action rather than silently changing information inside an unrelated application.

Step 3: Complete only the forms that apply

The NMC commonly identifies forms such as:

• CG-719B: Application for Merchant Mariner Credential.
• CG-719C: Conviction statement, when applicable.
• CG-719S: Small-vessel sea service, when applicable.
• CG-719P: Drug-test compliance, when applicable.
• Medical certificate or medical application documents, depending on the situation.

The correct list is determined by the current checklist and your facts. Download the current CG-719B from an official NMC link and read its instructions before completing it. More forms do not automatically make an application stronger; unrelated or unclear documents can make review harder.

Step 4: Assemble sea service and training evidence

Sea service is not a standalone number. Its relevance can depend on vessel type, tonnage, route, dates, duties, and the credential sought. Collect the records that support your specific path, then check that names, dates, vessel details, and signatures are readable and consistent.

Add training certificates, assessments, medical documents, and other supporting records only when the applicable checklist calls for them. Create a simple index so a reviewer can see which document supports each requirement. Keep the original records safe and submit copies in the format the live instructions request.

Step 5: Pay and submit through the current process

The NMC currently describes payment and application submission after the required forms and supporting documents are ready. Before submitting, check the live page for the current portal, file-combination rules, upload limits, payment method, and Regional Examination Center instructions.

Run this file audit:

1. Is every required form signed and dated where necessary?
2. Are all pages readable and in the correct order?
3. Are multi-page documents combined as instructed?
4. Are names, dates, and reference numbers consistent?
5. Did you save the final packet, payment confirmation, and submission receipt?

Prepare for the examination after the route is confirmed

If your path includes an examination, do not study a generic question bank before identifying the module mix. Use USCG Prep study sessions to practice the topics that apply to your credential. The about page explains the independent study model, and pricing lets you compare access options.

Application preparation and exam preparation support each other, but they are not the same task. The NMC determines whether your application and qualifications satisfy the credential requirements. USCG Prep can help you practice and review; it cannot approve, submit, or issue a credential.