COS from F1 to H4 Timeline

How long does changing status (I539 and I765) from F1 to H4 usually take? My application was received over 90 days.

Did you do premium processing? PP you should get a response within 30 days. If not it can range from 3-8 months.

can we do pp on f1 to h4? I have a coworker try to do it but eventually found out it is not applicable…

Changing to H4 status does not have Premium Processing (PP), but changing to F1 is possible.