Synopsis
US Citizenship and Immigration Services (USCIS) issues a Green Card to all permanent residents as proof that they are authorized to live and work in the United States. If you are a permanent resident, you are required to have a valid Green Card in your possession at all times.
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Illustration of a green card
A Green Card, officially referred to as a Permanent Resident Card, is an identity document which shows that a person has permanent residency in the United States. US Citizenship and Immigration Services (USCIS) issues a Green Card to all permanent residents as proof that they are authorized to live and work in the United States. If you are a permanent resident, you are required to have a valid Green Card in your possession at all times.