US Resident Card Number: What It Is and How to Use It
Key Takeaways
- The US resident card number is a unique identifier assigned to every lawful permanent resident by USCIS.
- The number appears on the front and back of the Permanent Resident Card in a specific printed format.
- It differs from the A-Number (Alien Registration Number) in context of use, though on modern green cards they often share the same digits.
- You will need this number for USCIS forms, employment eligibility verification, and travel re-entry [1].
- If your card is lost or stolen, USCIS provides guidance on how to report and replace it.
What Is a US Resident Card Number?
The US resident card number is a unique government-issued identifier assigned to every individual who holds lawful permanent resident status in the United States. USCIS uses this number to track an individual’s immigration file across all agency systems. On a green card issued after 2010, the resident card number is printed in a standardized location on the card’s front and is also encoded in the card’s machine-readable zone. The number consists of letters and digits that together form a distinct code for your file. It is sometimes referred to interchangeably with the USCIS number, though the agency uses both terms depending on the form or context. Understanding this identifier is foundational whether you are renewing your green card, applying for naturalization, or responding to a Request for Evidence during an EB-2 NIW petition.
Where to Find the Number on Your Green Card
On current Permanent Resident Cards, USCIS places the resident card number in the upper-right area of the card’s front face, labeled as ‘USCIS#’. The card also contains a machine-readable zone across the bottom of the back, where the same number appears in a standardized international format. If you hold an older green card issued before design updates, the number may appear in a slightly different position, but it is still labeled for identification purposes. When filling out Form I-90 (Application to Replace Permanent Resident Card) or Form I-485, you will be asked to enter this number exactly as it appears on your current or most recent card [1]. Entering the wrong number can cause processing delays, so matching the card exactly is essential.
How the Resident Card Number Differs from the A-Number
Many permanent residents encounter two seemingly similar identifiers: the resident card number (USCIS number) and the Alien Registration Number, commonly called the A-Number. USCIS clarifies that on modern Permanent Resident Cards these two numbers are typically identical in digits, both consisting of nine digits preceded by the letter A. However, they are used in different administrative contexts. The A-Number appears on older immigration documents, court records, and visa applications, while the USCIS number is the label used on the physical green card itself. On USCIS forms, you may be asked for one or the other depending on the form version and what it is requesting. Always read the field label carefully and match it to the correct identifier from your card [1].
Common Uses of the US Resident Card Number
Your resident card number serves as a reference point across multiple government and employer processes. Below is a numbered list of the most common contexts where you will need it:
1. USCIS filings: Form I-90 for card renewal, Form I-751 for removing conditions on residence, and Form N-400 for naturalization all require the resident card number [1].
2. Employment eligibility verification: Form I-9, which employers use to verify work authorization, asks for the Alien Registration Number or USCIS number from the Permanent Resident Card [1].
3. Customs and Border Protection re-entry: When returning to the United States after international travel, Customs and Border Protection officers may reference your green card number during inspection.
4. Social Security Administration records: The SSA may cross-reference the number when updating immigration status tied to a Social Security account.
5. State driver’s license applications: Many state DMVs request permanent resident documentation including the card number when issuing a Real ID-compliant license.
Keeping an accurate record of this number in a secure location helps you respond quickly to government requests during any petition or renewal process.
How to Protect and Manage Your Resident Card Number
Because the resident card number is tied to your immigration identity, protecting it follows the same principles USCIS applies to all sensitive personal identifiers on government-issued documents. USCIS advises that permanent residents should store their card securely and limit unnecessary disclosure of the card number. If your Permanent Resident Card is lost or stolen, USCIS instructs card holders to file Form I-90 to obtain a replacement. You can file Form I-90 online through the USCIS website or by paper submission, and USCIS will issue a replacement card that retains your original resident card number. While your card is being replaced, USCIS can provide documentation to support employment or travel needs in certain circumstances, though you should consult directly with USCIS or a qualified immigration professional for guidance specific to your situation.
Resident Card Number in the Context of EB-2 NIW Petitions
If you are pursuing an EB-2 National Interest Waiver, your resident card number becomes relevant at a later stage of the process rather than at initial I-140 petition filing. The I-140 petition is filed before a green card is issued, meaning you may not yet have a resident card number at that point [1]. Once USCIS approves the I-140 and you adjust status through Form I-485, you are assigned your A-Number and subsequently your USCIS resident card number when the card is produced [1]. For applicants already holding a green card through another category who are filing supplementary petitions or seeking to port priority dates, your existing resident card number will appear across related filings. EB2Hub assists EB-2 NIW applicants with documentation, CV drafting, I-140 petition preparation, and recommendation letter support, helping ensure each form is completed accurately before submission. Explore the green card process in more detail at https://eb2hub.com/green-card-process/.
Renewing or Replacing Your Permanent Resident Card
Permanent Resident Cards are issued with an expiration date, and USCIS recommends that permanent residents file Form I-90 to renew their card before it expires. An expired card does not mean you have lost permanent resident status, but it can complicate employment verification and international re-entry. The resident card number assigned to you remains consistent across renewals; USCIS does not issue a new number when a card is renewed or replaced. Current fees and processing times for Form I-90 can change, so checking the USCIS fee schedule and the current processing times page directly is advisable before filing. For a general overview of processing time expectations for USCIS applications, see https://eb2hub.com/uscis-processing-times/. Keeping your card current and your resident card number accurately recorded in personal records prevents disruptions to any ongoing or future immigration filings.
Frequently Asked Questions About the US Resident Card Number
See the FAQ section below for answers to the most common questions permanent residents ask about their resident card number.
Frequently Asked Questions
Is the US resident card number the same as my A-Number?
On modern green cards issued after USCIS updated its card design, the resident card number (labeled USCIS#) and the Alien Registration Number (A-Number) share the same digits. However, the labels differ across government forms and older documents, so always match the identifier to the field label on each specific form.
Where exactly is the resident card number printed on my green card?
The resident card number appears labeled as ‘USCIS#’ on the front of a current Permanent Resident Card and is also encoded in the machine-readable zone on the card’s back. If you have an older card, the layout may differ but the number is still labeled for identification.
Do I need my resident card number to file an I-140 petition for EB-2 NIW?
Form I-140, which is the petition filed to establish EB-2 NIW eligibility, does not require a resident card number if you are not yet a permanent resident at the time of filing [1]. The resident card number is assigned after I-485 adjustment of status is approved and the physical card is produced [1].
What should I do if my Permanent Resident Card is lost or stolen?
USCIS instructs permanent residents to file Form I-90 to replace a lost or stolen Permanent Resident Card. Your original resident card number is retained on the replacement card. Visit the USCIS website for current instructions on filing Form I-90 and any associated fees.
Does my resident card number change when I renew my green card?
No. USCIS assigns each permanent resident a consistent resident card number that does not change across renewals or replacements. The number on a renewed card will match the number on your original card.
Sources
- USCIS – Form I-9 Employment Eligibility Verification Instructions — Use of resident card number on Form I-9, USCIS form requirements including I-90, I-485, and I-140 context