You must have completed at least one academic year with the same SEVIS number (found at the top left side of page 1 of the I-20).
You must apply prior to the end of the 60 day grace period following the quarter/term in which all requirements for graduation are met (for graduate students this means all degree requirements except dissertation/thesis/project).
Students in F-1 status who are currently on OPT can extend their work authorization an additional 24-months total if they meet certain criteria. Students who extend are required to maintain their status under the new regulations. Official Department of Homeland Security guidance on the new STEM rules can be used as resource if needed.
Students currently authorized for Optional Practical Training (OPT) who also: