I don't know what the protocol is for college officials. But, in MN HS football, the referees are specifically told that, if they see any player display possible symptoms of a concussion, that player has to leave the game and be evaluated. The player cannot return to the game unless he is cleared by a trainer or doctor. The MN State HS League has made a real emphasis of the concussion issue in recent years. I know that more schools are having all their athletes take the IMPACT test before the start of the school year. If an athlete is suspected to have a concussion, they re-take the test and the scores are compared. If their score does not match the pre-season results, they have to sit out until they can pass the test and show no physical symptoms for a 2-week period. I have to admit I'm astounded that a small rural MN HS seems to have better procedures in place than a D1 college program.