Form I-551: What the ADIT Stamp Is and How to Get One as a Permanent Resident

Lawful permanent residents are required to carry their Green Card as proof of status — but there are circumstances where that card is unavailable, lost, or pending renewal. In those situations, a temporary document known as the Form I-551 stamp — also referred to by USCIS as an ADIT stamp, short for Alien Documentation, Identification and Telecommunication — can serve as official, temporary proof of lawful permanent resident status. Understanding when this document is needed, how to request it, and what to expect from the process can help permanent residents avoid documentation gaps that could affect travel or employment verification.

What the I-551 stamp is

The I-551 stamp is a temporary endorsement issued by U.S. Citizenship and Immigration Services (USCIS) that confirms a foreign national’s lawful permanent resident status. Depending on the circumstances, it may be placed in the holder’s passport or on a Form I-94 Arrival/Departure Record. Regardless of how it is issued, I-551 stamps are valid for no more than one year, and USCIS retains discretion to approve shorter validity periods.

Unlike most immigration requests, obtaining an I-551 stamp does not involve filing a separate form with USCIS. Instead, it requires contacting the USCIS Contact Center directly — either by phone or through the myUSCIS online portal.

When an I-551 stamp is needed

There are two primary circumstances in which a permanent resident may need an I-551 stamp.

Initial admission following consular processing. For individuals who obtained their Green Card through consular processing abroad, the U.S. embassy places a Machine-Readable Immigrant Visa in their passport before they depart for the United States. Upon clearing U.S. Customs and Border Protection at the port of entry, an immigration officer endorses that visa with an I-551 stamp. This endorsed document then serves as temporary proof of permanent resident status while the physical Green Card is produced and mailed.

A documentation gap while a Green Card is lost or pending renewal. Permanent residents who have filed Form I-90 to renew or replace a Green Card may find themselves without valid documentation during the processing period. While USCIS automatically extends the validity of an existing card by 36 months upon filing Form I-90, processing times can vary. As of recent USCIS reporting, most I-90 petitions are currently processed within approximately 7.5 months — a figure that should be verified against the current USCIS processing times page before relying on it for planning purposes. For those who need to travel internationally or verify employment authorization in the interim, an I-551 stamp provides the necessary documentation to confirm current status.

How to request an I-551 stamp

The process for obtaining an I-551 stamp begins with contacting the USCIS Contact Center. Requests may be submitted online through the myUSCIS portal or by calling USCIS at 1 (800) 375-5283. A USCIS officer will verify the applicant’s identity, confirm their mailing address, and check whether a usable photo is on file.

Before making contact, applicants should have the following information readily available:

• A valid, unexpired passport
• Current mailing address
• Alien Registration Number (A-number)
• Proof that a Form I-90 is pending, if applicable

Having all documentation on hand before initiating the request is advisable — particularly for phone requests, where the process may move quickly and there may not be an opportunity to locate missing information mid-call.

How the stamp is delivered

Based on the information gathered during the initial contact, USCIS will take one of two courses of action:

• Mail delivery. USCIS submits a request to mail Form I-94 with the I-551 stamp printed on it.
• In-person appointment. If USCIS cannot process the request by mail — for example, if no usable photo is on file — the applicant will be scheduled for an in-person appointment at a USCIS field office. At the appointment, an immigration officer reviews the applicant’s documents, confirms identity, and places the I-551 stamp directly in the passport. The applicant leaves the same day with the stamp in hand.

For in-person appointments, applicants should bring their valid foreign passport, expired Green Card if available, Form I-797 receipt notice for any pending I-90, a government-issued photo identification such as a driver’s license, their printed appointment confirmation, and any supporting documentation related to travel needs such as airline tickets or an employer letter.

Traveling with an I-551 stamp

A valid I-551 stamp serves as temporary proof of lawful permanent resident status and permits international travel and re-entry into the United States. Permanent residents traveling with an I-551 stamp should carry their passport alongside any relevant supporting documentation — such as the Form I-797 receipt notice — in case it is requested at the port of entry.

The value of legal guidance

For most permanent residents, the I-551 stamp process is relatively straightforward. However, for those navigating urgent travel needs, complex renewal situations, or uncertainty about their documentation options, working with experienced immigration counsel can help ensure the request is handled correctly and that no documentation gaps affect status or travel plans.