Students who are accepted should start the visa application process as soon as possible by obtaining their Form I-20 from the school of their choice. Students shoulepic teen pattid know when they need to pay the SEVIS fee and set up their visa interview after obtaining the Form I-20. It is recommended to set up the interview as early as possible because of possible wait times at U, and the SEVIS fee must be paid at least three days prior to applying for the visa. S. . embassies or diplomatic missions.