F-1 STEM Optional Practical Training (OPT) – FAQs

Essential Information for International Students

When Can I Apply For a STEM Extension?

You must be on Post-Completion OPT

  • File the STEM OPT application up to 90 days before your current OPT end date. 
  • USCIS must receive your application before your current OPT period ends, and within 60 days of obtaining an ISSS-issued STEM OPT I-20. 

Processing Time: Generally takes three months. Check the USCIS website for current processing times. 

Note: Your work authorization is extended for up to 180 days while the STEM extension application is pending. 

Can I Travel While on STEM OPT?

Consult an ISSS advisor before leaving the US as immigration regulations can change. 

To return to the US, you need:

  • A valid passport 
  • A valid F-1 visa stamp (citizens of Canada and Bermuda are exempt) 
  • An OPT I-20 endorsed for reentry by an ISSS advisor within the last six months 
  • A valid EAD card for STEM OPT
  • Evidence of employment (job offer or employment verification letter) 

If you lack any of these documents or plan to leave the US while your OPT application is pending, consult an ISSS advisor.

It is recommended that you stay in the US while your OPT application is pending to respond to any USCIS requests.

Note: Your EAD will state “not valid for reentry to US”, meaning the card alone is insufficient for reentry.

What Types of Employment are Permitted on STEM OPT?

  • All jobs must be paid; unpaid internships or volunteers positions are not allowed.
  • Employment must be related to your STEM degree.
  • You can hold multiple full-time jobs, each requiring at least 20 hours per week.
  • Self-employment is not permitted; you must have a bona-fide employer-employee relationship.
  •  All employers must be enrolled in E-Verify

How Much Unemployment Time Can I Accrue?

You cannot accrue more than 150 days of unemployment during your total OPT time (including post-completion and STEM OPT).

I Received a Request for Evidence from USCIS. What Should I Do?

Consult an ISSS advisor if you receive a Request for Evidence (RFE). 

Can I Study While on Approved STEM OPT?

Your OPT will be automatically terminated if you begin studying at another educational level or transfer to another school. 

Can I Change Employers While on Approved STEM OPT?

Yes, you can change employers. Report any changes to your employment status to ISSS, complete the required evaluation forms, and submit an I-983 when reporting new employment. 

Can I Work While My 24-Month Extension is Pending?

Yes, your employment authorization is automatically extended for 180 days while your STEM extension is pending with USCIS. You can work even if your EAD card expires during this period.