This page provides detailed guidance for F-1 students applying for Post-Completion OPT, including eligibility, application, and timeline. Learn how to identify and avoid OPT scams as an F-1 student immigrant.Protect yourself from fraudulent employers with these essential tips. This form is for reporting suspected immigration benefit fraud and abuse to USCIS. My immigration advisor told me that even if I have all the documents, including the EAD card, it is not advisable to leave US during OPT. This document discusses different types of optional practical training (OPT) including: required forms, processes, and updating SEVIS. You may apply for Post-completion OPT up to 90 days before your graduation date through 60 days after your program completion date. Post-completion OPT authorization allows F-1 students to work in a job directly related to their major after they graduate from WashU. Students must be physically in the U.S. to apply for OPT. You can only apply for a STEM extension if you are successfully completing your 1 year of OPT.