Punt traveling 25 or more yards considered a live ball, recoverable by either team. No leaving line of scrimmage until punt is airborne.
Clock runs during extra-point attempt.
Intercepted or fumbled extra-point try may be taken back for defensive score worth one point. Quarterback down when forward progress halted. Play clock shortened to 35 seconds after previous play, or 25 seconds after clock stoppage. Kicks must be run out of end zone unless they travel through the end zone. In overtime, each team gets ball once and up to four downs to score from the opponent's 20.