Last updated: October 9, 2026. Imagine you are halfway around the world and your green card is gone — left in a hotel safe that was emptied, destroyed in a washing machine, or simply lost somewhere between two airports. U.S. law requires a permanent resident to travel with a valid green card or re-entry permit, and airlines face penalties for bringing travelers to the United States without the required documents. Without a fix, a carrier can refuse to let you board, stranding you abroad even though your permanent residence is intact. That fix is called carrier documentation, and the version most people see is a boarding foil. It is issued through Form I-131A, Application for Carrier Documentation, and it lets a lawful permanent resident who still holds status board a flight home after losing the physical document. This guide explains what a boarding foil is, when you need one, the exact filing process, the current $575 fee, the airline's role, the 30-day validity, and how the whole thing differs from an SB-1 returning resident visa. For background on green cards themselves, see our green card guide.

Quick answer: A boarding foil is carrier documentation issued through Form I-131A when a lawful permanent resident abroad has lost, stolen, damaged, or destroyed their green card or re-entry permit. The fee is $575, paid online before you file in person at a U.S. embassy or consulate. Carrier documentation is generally valid for 30 days, and you should always check with your airline first, because a carrier may refuse to board you even in cases where documentation is not strictly required.

What a Boarding Foil Is

Carrier documentation is an official travel document that allows you to board an airline or other transportation carrier to return to the United States without the carrier being penalized. USCIS issues two forms of it, and the instructions for Form I-131A name them directly: a transportation letter or a boarding foil. When the document is a foil, it is placed in your passport like a visa. When it is a letter, you carry a printed authorization. Either way, it is not an endorsement that you are guaranteed entry; it is proof to a commercial carrier that you are not required to present a visa or comparable document at the time you apply for admission.

This distinction matters because the airline is the gatekeeper you must satisfy before you ever reach a U.S. port of entry. U.S. law imposes penalties on carriers that bring foreign nationals to the United States without a valid passport and any required visa. A permanent resident normally uses a valid green card or a re-entry permit as the document that satisfies that requirement. Lose the document, and the carrier's checklist no longer balances — which is precisely the gap that a boarding foil fills. USCIS explains that if it determines you remain an LPR or conditional LPR, or that your previously issued advance parole document or travel-endorsed EAD is still valid, it may, as a matter of discretion on a case-by-case basis, provide carrier documentation.

The word "discretion" is deliberate. A boarding foil is not an entitlement you can demand on a fixed timetable; USCIS grants it when it is satisfied that your status is intact. That is why the first question to answer, long before you pay anyone, is whether you actually still hold permanent residence. If you have abandoned your status or it has been terminated, carrier documentation is not the right tool, and USCIS states plainly that you should not file Form I-131A in that situation.

When You Need One

The classic case is a permanent resident traveling overseas who loses or damages their green card. But that is not the only trigger. USCIS describes two broad situations in which Form I-131A applies.

  • You are an LPR or conditional LPR and you wish to apply for a travel document that lets you board a carrier without the carrier being penalized, because you do not have a valid, unexpired green card or re-entry permit.
  • You are not an LPR, or a conditional LPR, but you hold a travel document that was lost abroad — specifically a Form I-512, I-512L, or I-512T advance parole document, a travel authorization document, or a Form I-766 Employment Authorization Document with a travel endorsement — that was lost, stolen, damaged, or destroyed while you were outside the United States.

Common real-world scenarios include a stolen wallet abroad, a green card destroyed in transit, a re-entry permit that never made it to you, or an advance parole document lost during a long trip. The instructions for Form I-131A also describe why people get stuck: if you do not have a valid, unexpired Permanent Resident Card or re-entry permit — for example because it was lost, stolen, destroyed, or damaged — you may experience difficulties when you attempt to return to the United States. And there is an important carve-out worth repeating: if your advance parole is a boarding foil issued by the Department of State and the document containing that foil is lost, damaged, or stolen, you should report it to the Department of State consular office where the foil was issued. You should not use Form I-131A to replace a State Department boarding foil.

Timing drives the whole exercise, and USCIS gives a specific measuring rule: the length of your absence is measured from the time you departed the United States to the time you pay the Form I-131A fee. That means the clock you are racing is the one-year mark that distinguishes a lost-document problem from a potential abandonment problem.

Who Qualifies for Carrier Documentation

USCIS lists the conditions for filing Form I-131A, and they are cumulative. You apply for carrier documentation if you were lawfully admitted to the United States as an LPR or conditional LPR, you have not lost that status by abandoning it or by removal from the United States, and you need the document to board a carrier because your card or permit is lost, stolen, damaged, or destroyed. For non-LPRs, the equivalent path exists for people whose advance parole or travel-endorsed EAD was lost abroad.

There are situations where you may not need to file at all. USCIS notes that if you have an expired Green Card, you may not need Form I-131A because CBP policy permits a carrier bound for the United States to board certain travelers without carrier documentation. Those categories include:

  • An LPR with a 10-year green card that has expired, if you have been outside the United States for less than one year.
  • An LPR with a 2-year green card plus a Form I-797, Notice of Action, showing that a Form I-751 or Form I-829 was filed and extends the card's validity, if you have been outside the United States for less than one year. The notice extends the card for a specified length of time.
  • An LPR who is an employee of the U.S. government, or the spouse or child of such an employee on official U.S. orders, regardless of time outside the United States.

Even in these categories, USCIS warns that the airline may still refuse to board you. In that case, you will need to file Form I-131A. Whether you are married to a government employee or simply lost a card on holiday, our green card processing time and US citizens Mexico visa resources help with adjacent questions, but the I-131A decision itself comes down to status and documentation.

The I-131A Process Step by Step

The I-131A is unusual because it is filed overseas, in person, at a consular section — not mailed to a USCIS service center. The mechanics are built around speed, but the sequence matters.

  1. Confirm you still hold status and check with your airline. USCIS advises checking with your carrier before you file, because carrier policies and thresholds vary. A quick call can tell you whether the airline will board you without documentation or whether you must file.
  2. Gather your identifying details. You will need the correct first and last name, date of birth, and A-Number because that information appears on your boarding foil. These are on your green card, re-entry permit, or advance parole document; if the physical document is gone, use copies, photographs, or prior notices.
  3. Pay the fee online first. USCIS requires you to submit the filing fee through its online payment system before you appear in person. Anyone can pay from anywhere in the world with a credit or debit card or a U.S. bank account. Save the payment confirmation page or the email receipt notice.
  4. File in person at a U.S. embassy or consulate. You must file Form I-131A in person with a consular section at a U.S. embassy or consulate. Bring evidence that you paid the fee, such as the payment confirmation or receipt, along with your passport and whatever identity and status documents you still have.
  5. Receive the carrier documentation. If USCIS is satisfied you remain an LPR or conditional LPR, or that your travel document remains valid, it may provide carrier documentation. Present it to the carrier when you fly.

Because the process is at a consulate, local instructions and appointment practices vary by post. Contact the specific embassy or consulate where you will file for its current procedure, and confirm the exact form edition on the USCIS website before you print anything. If you are also managing a broader immigration question, our visa trackers hub and guides index can point you to the right next step.

Fee and Validity

The numbers here are fixed and worth memorizing. The Form I-131A filing fee is $575. That figure is set in the USCIS fee schedule at 8 CFR 106.2, which lists the Application for Carrier Documentation, Form I-131A, at $575 for filing an application to allow an individual who loses their approved travel document to apply for carrier documentation to board a carrier to return to the United States.

There is no fee waiver. USCIS states that you cannot request a fee waiver for this application. The fee must be paid online before your in-person appearance, by credit card, debit card, or U.S. bank account, and it is paid in connection with your name and A-Number because those details appear on the foil. Keep the receipt; you must show it when you file.

On validity, the instructions are explicit: carrier documentation is generally valid for 30 days from the date of issuance. That short window is by design — it is meant to cover your imminent return flight, not to serve as a standing travel document. If your plans slip past the 30 days, you may need new documentation, and the clock on your absence keeps running. Plan your travel dates before you file so the foil and your flight line up.

Carrier Rules: Check With Your Airline

The single most useful habit in this whole process is to call the airline before you do anything else. The reason is that carrier documentation exists to reassure the airline, and individual carriers set their own operational rules even where CBP policy would allow boarding. USCIS says directly: check with your airline or transportation carrier before you file Form I-131A, because in some situations they may refuse to let you board even if you are in one of the categories that normally would not need carrier documentation. In that case, you will need to file Form I-131A.

Two warnings round out the picture. First, carrier documentation only allows you to demonstrate to the commercial carrier that you are not required to provide a visa or comparable document at the time you apply for admission; it does not guarantee that you will be allowed into the United States. The final decision on your entry belongs to CBP at the port of entry, exactly as it does for anyone arriving. Second, if you lost your travel document because it was stolen, report the theft locally and keep a copy of any police report. It is not always required, but it strengthens your file and can help if questions arise later.

If your card was lost but you also changed address or have a pending case, make sure the supporting documents reflect it. Our US passport renewal guide is the analogous read for citizens, and the same principle applies: identity paperwork should be consistent, current, and easy to produce on demand.

Boarding Foil vs SB-1 vs Expired Green Card

These three situations are routinely confused, and picking the wrong one wastes money and weeks. The deciding question is simple: do you still hold permanent residence?

Situation Document Where you file Key limitation
Status intact, document lost abroadBoarding foil / carrier documentation (Form I-131A)In person at a U.S. embassy or consulate; fee paid online firstGenerally valid only 30 days; does not guarantee admission
Abroad more than 1 year, status maybe abandonedSB-1 returning resident visa (Form DS-117 first)U.S. embassy or consulateLow approval rate; a denial can formalize loss of residence
Expired card, short absenceNo document needed if the carrier accepts CBP policyNo filingAirline may still refuse; then Form I-131A is required

Read the middle row carefully, because it is where people go wrong. If you have been outside the United States for more than a year, the problem is no longer that a document is missing — it is that your status itself may be in question. In that scenario, filing Form I-131A is not enough, and USCIS warns that if you abandoned your LPR status or it was terminated, you should not file Form I-131A at all. The right route is a returning resident (SB-1) immigrant visa, which requires proof that the long absence was beyond your control and carries its own strict approval standard. If your absence is under a year and your card is merely expired, you may fall into a CBP policy category that needs no document — but always confirm with the airline, because a carrier can still decline.

Frequently Asked Questions

What is a boarding foil?
A boarding foil is one form of carrier documentation that U.S. Citizenship and Immigration Services can issue to a lawful permanent resident or other eligible traveler who lost their green card, re-entry permit, or travel document while abroad. A foil is placed in your passport; the alternative is a boarding letter. It shows the airline that you have permission to board a flight to the United States and is generally valid for 30 days.
When do I need to file Form I-131A?
File Form I-131A if you are a lawful permanent resident or conditional permanent resident abroad who does not have a valid, unexpired green card or re-entry permit because it was lost, stolen, damaged, or destroyed; or if you hold an advance parole document or a travel-endorsed EAD that was lost, stolen, damaged, or destroyed while you were outside the United States.
How much does the I-131A boarding foil cost?
The Form I-131A filing fee is $575, as set out in the USCIS fee schedule at 8 CFR 106.2. Anyone can pay the fee online from anywhere in the world using a credit or debit card or a U.S. bank account, as long as the correct name, date of birth, and A-Number are entered because that information appears on the boarding foil.
Where do I file Form I-131A?
You must file Form I-131A in person with the consular section at a U.S. embassy or consulate. Before you appear, you must pay the fee through the USCIS online payment system and bring proof of payment, such as the payment confirmation or email receipt. Check with your airline or transportation carrier before you file.
How long is a boarding foil valid?
Carrier documentation is generally valid for 30 days from the date of issuance. If you do not travel within that window you may need to obtain new documentation. Carrier documentation only allows you to show the carrier that you may board a flight to the United States; it does not guarantee admission at a U.S. port of entry.
Do I need a boarding foil if my green card is expired?
Not always. CBP policy allows a carrier bound for the United States to board an LPR with a 10-year green card that expired after less than one year abroad, or an LPR with a 2-year card plus a Form I-797 receipt for Form I-751 or Form I-829 showing an extension, among others. But the airline may still refuse, so USCIS advises checking with the carrier and filing Form I-131A if it will not board you.
What is the difference between a boarding foil and an SB-1 visa?
A boarding foil (Form I-131A) is for a permanent resident who still has status but has lost the physical document that proves it while abroad. An SB-1 returning resident visa is for a permanent resident who has been outside the United States for more than a year and may have lost or abandoned status; it is processed as an immigrant visa through a consulate. If you still hold status, the boarding foil is usually the faster route.
How long does an I-131A take?
There is no fixed processing time, but the mechanics are designed for speed: you pay the fee online, file the form in person at the consulate, and USCIS issues carrier documentation once it confirms your status. Because the document is generally valid for 30 days, USCIS measures the length of your absence from the time you left the United States to the time you pay the fee.
For informational purposes only. Verify current requirements at official government websites (uscis.gov and cbp.gov). Consult a licensed immigration attorney for personalised legal advice.