To apply for an F-1 visa, visit travel.state.gov for detail information.
Student Visa (I-20)
In order to stay in the United States as a full time student, you are required to
have a student visa (F-1). After you send us the complete application packet, we
may issue the form of I-20. Processing period for the I-20 form is approximately
one week. You will be asked to take it to a interview for an F-1 visa at the American
Embassy in your country.