Hello,
Do I need to replcae my B2 visa with a new one that has a 'Prospective Student' annotation on it in order for the CBP officer at the POE to put that same annotation on my I-94?
I understand that a change of status from B2 to F1 status takes between 100 and 150 days. What if my F1 status is approved and the upcoming semester starts in 50-60 days. Will I be required to leave the U.S. and re-enter only 30 days before the semester starts?
Thank you.

