Comparison of F-1 Employment Options F-1 Employment with an International Organization On-Campus Employment for F-1/J-1 Students Employment and Volunteering Severe Economic Hardship Employment for F-1 Students CPT for F-1 Students CPT Certification Course OPT for F-1 Students Applying for Optional Practical Training (F-1 Students) OPT Certification Course After You Have Applied for OPT While You Are On OPT OPT STEM Extension "Cap Gap" Relief for OPT Related Topics Important Information about F-1 Status Taxes and Social Security