papers. He said that once accepted you need to attend by Winter semester or you need to re-apply. The exception is if you have a mission call, then you're exempted from having to attend by Winter semester and don't have to re-apply. The question I have is, to qualify for the exemption, do you need to leave before the Winter semester begin, or do you just need to have your call before Winter semester begins? For example, if my son received his mission call in November, but didn't enter the MTC until February, would he need to re-apply to BYU when he gets home from his mission?