by being proactive and diligent in scheduling their F1 visa interviews. s. Thorough documentation of the student's academic and financial circumstances, along with meticulous attention to detail, are necessary when preptop slots sitesaring for the F1 visa interview. Students need to gather several important documents to bring to their interview in addition to filling out the online visa application form (DS-160) and paying the necessary visa application fee. These papers could be: - Form I-20 from the SEVP-certified school; - Verification of payment of the SEVIS fee; - Passport that is valid for at least half a year after the intended date of entry into the U.S.