The procedure for applying for U.S. permanent residence (a "green card") while living in the United States. Applicants submit a written application and later attend an interview at a local USCIS (U.S. Citizenship and Immigration Services) office. Adjustment of status is available only to certain people. Not only does the immigrant have to be eligible for a green card in the first place, he or she must also (with some exceptions), be staying in the U.S. legally, with a visa or other status.