Form I-539

Form I-539 is an application used by non-citizens currently in the U.S. to request an extension of their stay or to change their immigration status. For example, if you're in the U.S. on a temporary visa and want to stay longer or switch to a different visa category, you submit this form. It helps the U.S. Citizenship and Immigration Services (USCIS) review your request and decide whether you can stay longer or change your legal status while you are in the country.