I am in the US with an approved COS from B2 to F1, so my F1 visa is yet to be stamped on my (Indian)Passport.
1. My STEM masters program is for 9 months, and my I20 has a start and end date of 2 years(2026). Do I have to stamp before the end of 2 years to avail myself of the OPT and STEM validity?
2.I might have to visit a family member in Canada sometime in mid-2025 after my master's program has started. Is it advisable to go to Canada since I do not have the F1 stamped on my Visa? If I can visit, then will I require a different visa?
3. Is it possible for me to schedule my F1 Visa stamping in Canada during the visit? Or would you advise something different here? Or is it better to get it stamped in Mexico?
If you are on an F-1 visa converted from B-2, your visa stamp is only necessary if you plan to travel outside the U.S. While in the U.S., your status is governed by your I-94, which typically says "DS" (duration of status) and remains valid as long as you maintain your student status.
If traveling briefly to Canada or Mexico for under 30 days, you can use Automatic Visa Revalidation (AVR) to return without a visa stamp, provided you haven’t applied for and been refused a visa during your visit. Scheduling visa stamping in Canada is risky—if denied, you lose AVR eligibility and must return to India to reapply.
I encourage you to sign a petition I have drafted at the request of our community urging the Obama Administration to reinstate reissuance of nonimmigrant visas (including work visas like H-1, student visas like F-1, and family visas) within the USA, a practice that was discontinued in 2004. If the petition receives 100,000 on-line signatures by February 23, the Administration will review it, send it to the appropriate policy experts in the administration, and issue an official response. Signing the petition takes only a few minutes.