Hi Frens, Following is the part of the OPT instruction that my school has in their website: TRAVEL & OPT Travel while your OPT application is pending is not recommended as this may be considered abandonment of your OPT. Re-entry into the US at the port of entry may be denied. The exception to this is travel during Spring break (or before the current semester is complete). We recommend always having as much documentation with you as possible in order to assure your re-entry. An F-1 student on Pre-completion OPT follows the same procedure for traveling abroad and re-entry to the US as all other F-1 students. An F-1 student on Post-completion OPT who travels outside the US temporarily (less than five months) can re-enter the US to resume his/her employment for the remainder of the period authorized on the Employment Authorization Document (EAD). The student will need to present the following documents at the port of entry: 1. I-20 with OPT designation and current endorsement from DSO on page 3 (signature less than 6 months old). 2. Valid EAD 3. Valid passport (must be valid for at least 6 months). 4. Valid F-1 visa 5. Letter from employer verifying To follow with what I said earlier, the instruction here says that after EAD authorization, a person leaving the country has to produce some documents at the port of entry. The most significant of that, as far as I can think, is the valid F-1 visa. I believe it is up to embassy to consider F-1 visa for the rest of OPT period once being out of the country. With valid F-1 visa, I dont see any obstacle in coming back. To answer question by Bhusanb, they(international office) didnt issue new I-20 for me, they simply put the opt requested date on the third page of the I-20. May be different in ur case. I also feel comfortable on arguing that during OPT period, we are still in F-1 status (which can be verified by the amount of tax deducted from our payroll which is in same percentage to what we were entitled as GA/TA/RA.) for different reason but completely allowed by the law. So, my judgement is that with correct document u can travel in and out of the country during OPT period. I would like to know other information if u guys may have. Thanks,