According to NFL Rule 15, Article 9(b), an on-field ruling that time expired during or after the last play of any half is reviewable only when visual evidence shows the clock should have stopped with two or more seconds remaining.
The controversy from the Michigan-Western Michigan game centered on whether the clock showed one second or no time remaining when a Western Michigan player touched a Hail Mary attempt that sailed out of the back of the end zone. The Big Ten's interpretation allowed Michigan's game-winner, but the same play would have stood under NFL rules. forumteam.blog
