I may be totally wrong, but I don't think in college there's any obligation to notify the other team. In fact, I think I remember that there's no real duty to notify the linesman. It's just convenient to do so. The eligibility is determined by the positioning of the team, not the notification...Thanks for the info Earle..When a Ref notifies the defensive captain, is that when the D starts to adjust & move into another formation, it just never dawned on me, the offense had to let the refs know who's ineligible & then the refs notifies the defensive captain..