NCAA Eligible?

[cubanbean]

I am interested in finding out what are the NCAA/NJCAA rules on one officiating a school that they have attended or received a degree from. If you graduated from a school with a degree are you eligible to work that school in the future, can you still work in that school's conference? What are the rules (if they exist) concerning officiating games of a school where you have attended in the past? Any thoughts??

Thanks.