This document discusses different types of optional practical training (OPT) including: required forms, processes, and updating SEVIS. For changes in employer, all address updates, and name changes, you must submit your update to our OPT Reporting Form.I am currently a contract-to-hire employee through a staffing agency. Go to the Student Information page. Learn how to identify and avoid OPT scams as an F-1 student immigrant. Protect yourself from fraudulent employers with these essential tips. You must report key details about your employment to International Services. Employment reporting is mandatory in order to maintain your legal status. If a student's OPT application is denied, they will receive an OPT Denial Notice from USCIS within 2 weeks, explaining the reason for the denial. 1 Student Seeking PostCompletion OPT After Completing Studies(c)(6).