Form I-20

The Certificate of Eligibility for Nonimmigrant Student Status issued by a SEVP-certified school. The I-20 is the foundational document for F-1 status — it shows your program details, SEVIS ID, OPT recommendation, and requires a valid travel signature for re-entry to the U.S. Your DSO issues updated I-20s for OPT authorization, STEM OPT extension, program extensions, and changes of educational level.