I got picked up a month before graduation. I had a letter from my counselor saying I was on track to graduate by a certain date and it was put in the application and I got accepted. I think the rule is you have to be no more than 6 months away from graduating. I HIGHLY recommend going unsponsored. It allows other units to see your application package and come to you with offers for interviews and, you never know when there will be another board. So get in ASAP.