A green card is a wallet-sized plastic identification document, officially Form I-551, issued by U.S. Citizenship and Immigration Services to prove lawful permanent residence in the United States. What a green card looks like today is a green-and-white card with the holder’s photograph on the left front, biographical data printed to the right, a fingerprint image on the lower right, and a machine-readable zone across the back. The current design, refreshed in 2023, keeps the traditional color scheme but adds new artwork and security elements to the layout.
The Card at a Glance
The front face is dominated by a large, high-resolution photograph of the cardholder on the left. Directly below that main photo, a smaller translucent version of the same image is embedded into the card material itself, which makes photo substitution extremely difficult. The background carries soft-gradient renderings of the Statue of Liberty and the American flag, worked into fine patterning across the surface. A digital rendering of the cardholder’s fingerprint sits on the lower-right area of the front.
Flip the card over and the green theme continues. The back carries a machine-readable zone: a standardized block of encoded characters that Customs and Border Protection officers scan at ports of entry. That zone contains the cardholder’s A-Number, date of birth, gender, card expiration date, and country of birth in a format that automated systems worldwide can read.
Information Printed on the Card
The printed data on the front follows a consistent layout. Near the top you’ll see the cardholder’s surname and given name, followed by the USCIS Number, also called the A-Number. This is a unique nine-digit identifier assigned by the Department of Homeland Security that links the individual to their federal immigration file.1U.S. Citizenship and Immigration Services. USCIS Number
Other fields on the front include country of birth, date of birth, and sex. Two dates share the card and mean very different things. The expiration date shows when the physical card must be renewed or replaced. For standard permanent residents, that’s ten years from issuance; for conditional residents, it’s two years.2U.S. Citizenship and Immigration Services. Handbook for Employers M-274 – 7.1 Lawful Permanent Residents The “Resident Since” date is different: it marks the legal start of permanent residency and is the date USCIS uses to measure eligibility for naturalization.
The final field worth understanding is the Category Code. This short alphanumeric code tells officials how the person obtained residency. IR1, for example, indicates an immediate relative of a U.S. citizen. E11 designates someone admitted for extraordinary ability. DV1 is a diversity visa lottery winner who arrived from abroad, and RE6 is a refugee who adjusted status from within the United States.3Office of Homeland Security Statistics. Immigrant Classes of Admission Dozens of codes exist because there are dozens of immigration pathways, and the code on any given card corresponds to the specific pathway used.
Conditional Cards Look the Same but Expire Sooner
A conditional green card is visually similar to a standard one; the difference lives in the expiration date and the underlying status. If your permanent residency is based on a marriage that was less than two years old on the day status was granted, the card expires after two years rather than ten.4USCIS. Removing Conditions on Permanent Residence Based on Marriage EB-5 investor immigrants also receive two-year conditional cards. The category code on the front is what usually signals a conditional card at a glance, along with the shorter validity period.
Security Features Built Into the Card
The green card is one of the most heavily secured identification documents produced by the federal government. The 2023 redesign added upgraded anti-counterfeiting elements on top of features already in place.5USCIS. USCIS Announces Green Card and Employment Authorization Document Redesigns The main features you can see or feel on a genuine card include:
- Holographic images embedded on both the front and back, visible only when the card is tilted under direct light.
- Optically variable ink on certain printed elements, which shifts color as the card moves and is extremely difficult to replicate with standard printing equipment.
- Microprinting: text that looks like solid lines to the naked eye but resolves into tiny readable characters under magnification.
- Tactile printing, meaning raised elements integrated into the artwork that can be felt by touch.
- A layer-reveal feature: a partial window on the back photo box that allows visual verification through multiple card layers.
- RFID technology, an embedded radio-frequency tag that Customs and Border Protection officers can read wirelessly at ports of entry and cross-reference against federal records.
- An optical stripe on the back that stores encrypted data readable only by specialized government scanners.
Add to that list the translucent secondary photo embedded in the card body, the fingerprint image on the front, and the machine-readable zone on the back. Layered together, these elements make the current green card difficult to forge and quick to verify at a border, at a workplace during Form I-9 verification, or during any other identity check where officers have the right equipment.
Category Codes You Might See
Because the category code is the field that most often confuses cardholders and the people checking their cards, a quick reference helps. The letters generally indicate the immigration category, and the numbers indicate the specific subclass within that category. A small sample from the file:
- IR1 — immediate relative of a U.S. citizen (spouse).
- E11 — first-preference employment, extraordinary ability.
- DV1 — diversity visa lottery principal, admitted from abroad.
- RE6 — refugee who adjusted status inside the United States.
The full list of codes runs much longer and covers every route to permanent residency recognized under federal law.3Office of Homeland Security Statistics. Immigrant Classes of Admission If your code isn’t one of the common ones, that isn’t cause for concern; it just describes the specific statutory basis for your admission.
Carrying and Handling the Card
Federal law requires every permanent resident age 18 or older to carry their valid card at all times. Failing to do so is a misdemeanor punishable by a fine of up to $100, up to 30 days in jail, or both.6Office of the Law Revision Counsel. 8 USC 1304 – Forms for Registration and Fingerprinting That carry rule is one reason the card’s physical durability and security features matter.
The RFID chip inside the card can potentially be read from a short distance. Cards are typically issued with a protective sleeve designed to block unintended scanning when the card is stored, and keeping the card in that sleeve whenever you’re not actively presenting it is a practical habit.
One boundary worth naming: the physical card and the underlying status are not the same thing. A ten-year card expires; permanent resident status does not expire on that date. An expired card still needs replacing, because it’s what employers, airlines, and border officers rely on to confirm your right to work and reenter, but the status itself continues until it’s abandoned or revoked.