TWIC

How to Become a Merchant Mariner

TWIC

The Transportation Worker Identification Credential (TWIC) is an essential document for all merchant mariners, as required by the Maritime Transportation Security Act.

Other documents you’ll need to sail include:

  • A passport
  • Merchant Mariner Credential (MMC)

When applying to become a merchant mariner, you’ll need to have your TWIC before you can get your Merchant Mariner Credential, so it’s important to start the process here.

What is a TWIC?

A TWIC is a form of federal identification, issued by the Transportation Security Administration (TSA). It allows holders to access facilities and vessels the government considers “secure.”

A TWIC card looks a bit like a driver’s license. It will include your photo, other identifying information, and an expiration date.

Why do I need a TWIC?

As a merchant mariner, you’ll most likely need access to areas and/or vessels the U.S. government considers “secure.” A TWIC is what gives you this access.

Basically, this credential lets the government know you are who you say you are, you’re in the U.S. legally, and you don’t have a dangerous criminal background.

You’ll also need a TWIC in order to apply for a Merchant Mariner Credential, so it’s an essential document to have if you want to sail.

How do I get a TWIC?

The TWIC application process is handled by the Transportation Security Administration. You can start the process by either:1

  •  Scheduling an appointment online
  • Calling the TSA to schedule an appointment, at (885) 347-8371
  • Available weekdays, 8 a.m. – 10 p.m.

Once you have an appointment, you’ll have to visit a TWIC application center. Make sure to bring:1

  • Your passport OR
  • Your driver’s license and birth certificate

The names on all your documents must match exactly, so if you’ve had a name change, you’ll also need to bring in certified name change paperwork.3 If you don’t have these documents, see the list of all acceptable identifying documents.

At this appointment, you’ll also:

  • Be fingerprinted
  • Have your photo taken
  • Pay the $125.25 new applicant fee

The TSA will then run a background check based on the information you provide. As long as you pass and the money goes through, you should receive your TWIC. You can choose to have the document mailed to you directly or to pick it up at the TWIC center.

Generally, the TSA tries to respond to your application within 60 days. After that point, it could take up to 10 days for your TWIC to be sent out.4

Frequently Asking Questions

It varies, but in general, the TSA tries to respond to your application within 60 days. Once the TSA responds, it could take up to 10 additional days for your TWIC to be issued.4

This is why it’s important to start the TWIC application or renewal process well in advance of looking for jobs.

Your TWIC is valid for 5 years after its issue date.4

You can renew your TWIC anytime in the last year it’s valid, and up to 1 year after it expires. Otherwise, you will be considered a new applicant.4

It depends. Currently, fees include:1

  • New applicant fee: $125.25
  • New applicant reduced rate: $93
  • In-person renewal: $125.25
  • Online renewal: $117.25
  • Replacement card: $60

Fees are subject to change. It’s always best to double-check with the TWIC application center before your appointment to get the most accurate information.

You are eligible to apply for a TWIC if you are a:1 

  • U.S. citizen
  • Lawful permanent resident
  • Naturalized citizen
  • Nonimmigrant alien, asylee, or refugee in the U.S. on lawful status

No. But the government will take your fingerprints and run a background check as part of the process.

No. You’ll need a TWIC in order to get your Merchant Mariner Credential, which is the document that allows you to sail.

Yes. Some reasons your application may be rejected include:5

  •  If you were convicted of certain felonies within 7 years of your application. Some qualifying felonies are:
    • Unlawful possession, sale, manufacture, purchase, distribution, or dealing in a firearm or other weapon
    • Smuggling
    •  Bribery
    • Arson
    • Robbery
    • Immigration-related violations
    • Voluntary manslaughter
  • If you are wanted or under indictment in a civilian or military jurisdiction for any of the disqualifying felonies

 For more information, you can see the TSA’s complete list of disqualifying factors.

Yes. You can apply for a new TWIC online. You’ll have to pay a fee and wait for the new document to be mailed out.

Most likely not. The Coast Guard requires all merchant mariners to apply for a TWIC at least once, and you must have a TWIC in order to get a Merchant Mariner Credential, which is another essential document for sailing2

 

However, if you need to renew your MMC, it may be possible to do so with an expired TWIC, if:2

  • You are inactive
  • You are not operating under the authority of your credential

OR

  • You are sailing on a vessel not required to have a vessel security plan (VSP)

 These situations are rare, but if you think this pertains to you or you have more questions, you can consult the Coast Guard Policy Letter 11-15 for more information.

Resources

  1. What is a TWIC Card? (n.d.) Transportation Security Administration. Accessed November 2024.
  2. Frequently Asked Questions: Transportation Worker Identification Credential. (2018, November 29). National Maritime Center. Accessed November 2024.
  3. TWIC and HAZMAT Endorsement Threat Assessment Program. (n.d.) Transportation Security Administration. Accessed November 2024.
  4. TWIC® FAQs. (n.d.) Transportation Security Administration. Accessed November 2024.
  5. Disqualifying Offenses and Other Factors. (n.d.) Transportation Security Administration. Accessed November 2024.

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