
The Transportation Security Administration (TSA) has expanded TSA PreCheck eligibility to all active Transportation Worker Identification Credential (TWIC) holders who are U.S. citizens, U.S. nationals or lawful permanent residents. This allows individuals to obtain TSA PreCheck at no additional cost beyond what they have already paid for their credentials. Active TWIC cardholders can enter their TWIC credential identification number (CIN) in the known traveler number (KTN) field of their airline reservation. The CIN is printed on the back of each TWIC card in the lower left-hand corner. However, some travellers have reported issues with using their TWIC card at TSA checkpoints, with agents refusing to accept it as a primary form of ID.
| Characteristics | Values |
|---|---|
| Can I use my TWIC card at airport security? | Yes, but it is not always accepted as a primary form of ID. |
| What is a TWIC card? | Transportation Worker Identification Credential. |
| Who needs a TWIC card? | Workers who need access to secure areas of the nation's maritime facilities and vessels. |
| What is TSA PreCheck? | An expedited screening program offered by TSA that allows travelers to leave on their shoes, light outerwear and belt, keep their laptop in its case and their food and liquids/gels bag in a carry-on. |
| Who is eligible for TSA PreCheck? | All active TWIC and HME holders who are U.S. citizens, U.S. nationals or lawful permanent residents. |
| How to obtain TSA PreCheck with a TWIC card? | Enter the TWIC Credential Identification Number (CIN) in the Known Traveler Number (KTN) field of your airline reservation. |
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What You'll Learn

TSA PreCheck eligibility
To be eligible for TSA PreCheck, you must be a U.S. citizen or lawful permanent resident. Members of Global Entry, NEXUS, SENTRI, and the U.S. Armed Forces are also eligible, as are cadets and midshipmen of several U.S. academies. Passengers 12 and under travelling with an eligible passenger may also use TSA PreCheck.
The TSA PreCheck application process includes an online application, a background check, and an in-person interview appointment. There is an application fee, and the average processing time is 2-3 weeks, though some applications can take up to 60 days.
TWIC stands for Transportation Worker Identification Credential. This card is required for workers who need access to secure areas of the nation's maritime facilities and vessels. While some sources indicate that a TWIC card can be used as a secondary form of ID at airport security checkpoints, others state that TSA agents often do not accept it as a primary form of ID. Therefore, it is recommended that travellers avoid using the TWIC card as their primary form of identification at airport security.
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TWIC card as a primary ID
TWIC stands for Transportation Worker Identification Credential. It is a card that is required for workers who need access to secure areas of the nation's maritime facilities and vessels. The TSA, which operates airport security checkpoints, conducts a background check on applicants for TWIC cards.
TWIC cardholders can use their credentials to obtain TSA PreCheck, an expedited screening program offered by the TSA. This allows travelers to leave on their shoes, light outerwear, and belt, and keep their laptop in its case, and their food and liquids in a carry-on. To obtain TSA PreCheck, cardholders must enter their TWIC credential identification number (CIN) in the known traveler number (KTN) field of their airline reservation. The CIN is printed on the back of each TWIC card in the lower left-hand corner.
While TWIC cardholders can use their cards to obtain TSA PreCheck, it is not recommended to rely on the TWIC card as a primary ID at airport security. Some TSA agents may not accept the TWIC card as a valid form of primary identification and may request additional forms of ID. In such cases, the TWIC card can be used as a secondary form of ID. It is worth noting that there is no standard list of what secondary forms of IDs are accepted by the TSA.
To avoid any potential issues, it is advisable to carry a primary form of identification, such as a passport or driver's license, when traveling. However, if you arrive at the airport without proper ID, the TSA may still allow you to pass through security if they can confirm your identity through other means, such as by presenting multiple credit cards or other documents with identifying information.
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TWIC card as a secondary ID
The Transportation Worker Identification Credential (TWIC) card is a valid form of identification at airport security checkpoints. Since April 15, 2020, TWIC cardholders who are U.S. citizens, U.S. nationals, or lawful permanent residents can obtain TSA PreCheck at no extra cost. This allows travellers to expedite the screening process by not having to remove their shoes, belt, electronics, toiletries, and so on.
To obtain TSA PreCheck, active TWIC cardholders must enter their TWIC Credential Identification Number (CIN) in the Known Traveler Number (KTN) field during the airline reservation process. The CIN is printed on the back of the TWIC card in the lower left corner. However, it is important to note that there have been instances where individuals have faced issues using their TWIC card at airport security checkpoints. Some have reported that agents have trouble running their TWIC card through the machine, while others have experienced issues with auto check-in kiosks not recognising their KTN.
In the event that you arrive at the airport without a primary form of identification, the Transportation Security Administration (TSA) may accept secondary forms of ID to confirm your identity. While there is no standard list of accepted secondary IDs, TWIC cards can be used as a secondary form of identification if available. It is important to note that relying solely on a TWIC card for airport security can be a "nightmare," as reported by some travellers. Therefore, it is recommended to carry other forms of identification as well.
TWIC cards are required for workers who need access to secure areas of maritime facilities and vessels. The TSA conducts a background check, or threat assessment, for individuals applying for a TWIC card. This background check is comparable to the TSA PreCheck security threat assessment. Overall, while the TWIC card can be used as a secondary form of ID at airport security, it is advisable to carry additional forms of identification to ensure a smoother travel experience.
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TWIC card for expedited screening
The TWIC (Transportation Worker Identification Credential) card is a form of ID that can be used by certain individuals at airport security. TWIC cards are issued by the TSA (Transportation Security Administration) to workers who require access to secure areas of the nation's maritime facilities and vessels. The TSA conducts a security threat assessment (background check) to determine eligibility for a TWIC card.
TWIC cardholders can use their card as a form of identification at airport security checkpoints. However, it is recommended that travellers do not rely solely on their TWIC card for identification when passing through airport security, as some TSA agents may not accept it as a valid form of primary ID. In such cases, travellers may be asked to present additional forms of ID, such as a passport or driver's license.
TWIC cardholders who meet certain criteria may be eligible for expedited screening through the TSA PreCheck Application Program. To participate in this program, cardholders must be U.S. citizens, lawful permanent residents, or U.S. nationals, and they must have been approved for a TWIC card outside of the TSA's waiver process. Additionally, cardholders must not be under investigation as a result of TSA's recurrent vetting process. To enrol in the TSA PreCheck program, TWIC cardholders should enter the CIN (Credential Identification Number) from the back of their TWIC card into the known traveller number field when making airline reservations with a participating airline.
It is important to note that TWIC cards are the property of the TSA and may be revoked or confiscated under certain circumstances. For example, if a TWIC card is used in conjunction with a crime, it may be confiscated by law enforcement, the TSA, or the U.S. Coast Guard. Cancelled TWIC cards are listed on the TWIC Canceled Card List and/or Visual Canceled Card List, which are publicly available and updated daily.
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TWIC card and TSA PreCheck issues
The TWIC card, or Transportation Worker Identification Credential, is a security measure for workers who need access to secure areas of maritime facilities and vessels. While it can be used as identification at airport security, it is not always recognised as a primary form of ID. Some travellers have reported that their TWIC card was not accepted as a "real ID" at TSA checkpoints, and that they were asked for additional identification.
However, TWIC cardholders can obtain TSA PreCheck status, which allows them to expedite their security screening. To do this, cardholders must enter their TWIC credential identification number (CIN) in the known traveler number (KTN) field of their airline reservation. The CIN is printed on the back of each TWIC card in the lower left-hand corner.
TSA PreCheck is available at over 200 airports and with dozens of airlines across the US. The expedited screening programme allows travellers to leave on their shoes, light outerwear and belt, and keep their laptop in its case and their food and liquids in a carry-on bag.
While the TWIC card can be used as a secondary form of ID at airport security, it is recommended that travellers do not rely on it as their sole means of identification. It is best to have additional forms of ID available, such as a passport or driver's license, to ensure a smooth passage through security.
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Frequently asked questions
Yes, you can use your TWIC card as a secondary form of ID at the airport. However, it is recommended that you do not rely on it as your primary form of identification.
TWIC stands for Transportation Worker Identification Credential. It is a card required for workers who need access to secure areas of the nation's maritime facilities and vessels.
Active TWIC cardholders can enter their TWIC credential identification number (CIN) in the known traveler number (KTN) field of their airline reservation. The CIN is printed on the back of each TWIC card in the lower left-hand corner.





































