A lawful permanent resident, also known as a “green card holder,” is a foreign national who is authorized to live and work anywhere in the United States, sponsor certain relatives for their own green cards, and ultimately apply for U.S. citizenship. Most U.S. citizens and U.S. green card holders are entitled by law to sponsor their spouses for a green card, also known as “permanent residence status.” The total cost, wait time, and other details of the marriage green card process vary based on several factors.