If you need to travel outside the U.S. and have an expired U.S. entry visa, a new entry visa may be required to re-enter the U.S. Even if you do not have immediate plans to travel outside the U.S. and the visa stamp in your passport is expired, you may still want to renew your visa. Student visas cannot be renewed within the United States.
Note: Do not confuse renewal of your visa with a request for extending your authorized stay in the U.S.; if you will not complete your studies by the ending date in item 5 on your I-20 read more about extending your F-1 student program.
If you need to renew your visa to re-enter the U.S., you must apply in person to a U.S. Consulate or Embassy. These offices are only located outside of the United States, and they hold regular office hours.
There may be a need for a security clearance before a visa will be granted. Whether you will need a security clearance will depend upon your nationality, country of citizenship, countries visited in the past and your field of study or expertise. The security clearance will minimally take 20 days and may take as long as 6 months.
For an F non-immigrant visa application, the embassy or consulate minimally requires:
For more information and to view the applications visit http://www.travel.state.gov/visa/visa_1750.html.