Optional Practical Training (OPT) and the STEM OPT Extension are two of the most valuable work authorization opportunities available to F-1 international students in the United States. While both programs allow students to gain practical work experience related to their degree, they have different eligibility requirements, application processes, and reporting obligations.
Understanding these differences is essential when planning your academic and professional journey. Whether you're preparing to apply for your first OPT or considering a 24-month STEM OPT Extension, knowing what to expect at each stage can help you avoid delays and maintain your F-1 status.
This guide walks you through the seven key stages of OPT and STEM OPT Extension—from eligibility and application to employment, reporting requirements, and transitioning to your next immigration or career opportunity.
Most F-1 students become eligible for Optional Practical Training after completing at least one full academic year at an SEVP-certified school. OPT allows students to gain work experience that is directly related to their major field of study, either before completing their degree (Pre-Completion OPT) or after graduation (Post-Completion OPT).
Students may receive up to 12 months of OPT for each higher education level, including a bachelor's, master's, and doctoral degree, provided they meet USCIS eligibility requirements.
To qualify for OPT, students generally must:
Students who earn a qualifying STEM degree may be eligible for an additional 24-month STEM OPT Extension, increasing their total practical training period to 36 months.
Unlike standard OPT, the STEM OPT Extension has additional requirements designed to ensure the training provides meaningful professional development.
To qualify, students generally must:
Because STEM OPT applications involve additional documentation and employer participation, students should begin preparing several months before their current OPT expires.
USCIS allows eligible students to submit their OPT application up to 90 days before completing their academic program and up to 60 days after their program end date, provided all filing requirements are met.
If USCIS receives a timely filed STEM OPT Extension application, eligible students may continue working while the application is pending under the automatic extension provisions, provided they continue to meet all eligibility requirements.
After USCIS reviews your application, you will receive a decision by mail or through your USCIS online account.
If approved, USCIS will issue an Employment Authorization Document (EAD) showing your approved employment dates.
Processing times vary depending on USCIS workload, but many applications are completed within several months. Students should monitor USCIS processing times regularly and avoid making employment plans until they receive their EAD and reach the authorized start date.
The STEM OPT Extension approval process is similar to the initial OPT application but includes additional review of the employer's eligibility and the student's training plan.
Once approved, USCIS issues a new EAD reflecting the additional 24 months of work authorization. For students who file their extension on time, employment authorization may continue while the application is pending, helping reduce interruptions in employment.
Before beginning or continuing work under STEM OPT, students should verify that all employment remains directly related to their STEM degree and complies with the approved training plan.
Once your OPT is approved and you receive your Employment Authorization Document (EAD), you may begin working in a position that is directly related to your major field of study. The goal of OPT is to provide practical experience that complements your academic program while helping you transition into the U.S. workforce.
During your initial 12-month OPT period, you should:
The STEM OPT Extension allows eligible students to continue working for an additional 24 months, providing up to 36 months of practical training when combined with the initial OPT period.
Unlike standard OPT, STEM OPT has additional employer and reporting requirements designed to ensure the training supports your academic and professional development.
Students participating in STEM OPT must:
Maintaining your F-1 status during OPT requires more than simply finding a job. Students are responsible for keeping their SEVIS record accurate throughout their employment authorization period.
During OPT, students should report changes to their DSO within 10 days, including:
Keeping your information current helps ensure your SEVIS record remains accurate and demonstrates continued compliance with F-1 regulations.
Students on STEM OPT must meet all standard OPT reporting requirements, along with several additional compliance obligations.
These include:
Because STEM OPT receives closer oversight than standard OPT, students should maintain copies of all employment records, training plans, and communications with their employer and DSO.
As your initial 12-month OPT period comes to an end, it is important to begin planning your next step well in advance.
Depending on your qualifications and career goals, your options may include:
If you do not qualify for STEM OPT, some students choose to pursue another graduate degree and explore Day 1 CPT universities as part of their long-term educational and career plans.
The end of your STEM OPT Extension is another important transition point.
By this stage, many students have:
Students who do not immediately transition to another immigration status generally receive the same 60-day grace period after STEM OPT ends before taking their next step.
OPT and the STEM OPT Extension provide valuable opportunities for international students to gain professional experience while building their careers in the United States. Although the two programs share the same goal, they differ in eligibility requirements, employer obligations, reporting responsibilities, and employment duration.
Understanding these differences can help you prepare stronger applications, maintain your F-1 status, and make informed decisions about your future immigration and career plans.
Whether you plan to apply for a STEM OPT Extension, participate in the H-1B lottery, or pursue another degree through a Day 1 CPT university, careful planning and staying informed about current USCIS and SEVP guidance can help you navigate with greater confidence.
Yes. You may be eligible for a second STEM OPT Extension if you earn another qualifying STEM degree at a higher education level and meet all USCIS eligibility requirements. Each STEM OPT Extension must be based on a different qualifying degree.
Yes. You may change employers while on STEM OPT, provided your new employer is enrolled in E-Verify, completes a new Form I-983 Training Plan, and your DSO updates your SEVIS record before you begin the new employment.
If USCIS receives your STEM OPT Extension application before your current OPT expires, you may qualify for an automatic extension of your employment authorization while your application is pending, as long as you continue to meet all eligibility requirements.
Optional Practical Training (OPT) provides up to 12 months of work authorization for eligible F-1 students. The STEM OPT Extension offers an additional 24 months for students with qualifying STEM degrees who meet specific USCIS and employer requirements, allowing up to 36 months of total practical training.
STEM OPT does not increase your chances of being selected in the H-1B lottery. However, the additional 24 months of work authorization may allow eligible students to participate in more H-1B lottery cycles while continuing to gain professional experience.