Here is my situation with this. I am scheduled to go to ground school on April 7. I just found out last night from a friend that I need to reapply for the clearance. I called my airline today and they said someone should be contacting me regarding the tsa application. But from this thread I gather that you only need it for the sim not the ground portion so I should be good, right? Also, I was scheduled for my citizenship interview on April 16 so Ill need to reschedule.