American Football Rules IFAF Approved Ruling 8-3-2:VII

VII. On a try attempt, B1 intercepts Team A’s legal forward pass in his end zone. He runs the ball across Team A’s goal line, and (a) there are no fouls during the run, (b) B3 clips during the run or (c) A2 fouls during the run. RULING: (a) Award Team B two points. (b) No score, the try is ended, and the penalty is declined by rule. (c) Award Team B two points, and the penalty is declined by rule. (Rules 8-3-1, 10-2-7-a and 10-2-7-b). [Cited by 10-2-7-b]