“Permanent Resident Card (Form I-551)”

Jurisdiction: United States United States

Also known as a Green Card or alien registration card, this card is issued by USCIS to aliens as evidence of their lawful permanent resident status in the United States. For Form I-9, it is acceptable as proof of identity and employment authorization. Although some Permanent Resident Cards contain no expiration date, most are valid for 10 years. Cards held by individuals with conditional permanent resident status are valid for two years.

Source: USCIS Glossary, U.S. Citizenship and Immigration Services