American Football Rules IFAF Approved Ruling 8-7-2:I

I. Ball carrier A1, advancing toward Team B’s goal line, fumbles when B1 bats the ball from his hand or tackles him from the rear. In either case, A1 loses possession short of the goal line, and the ball goes into Team B’s end zone where Team B recovers. RULING: Touchback. Impetus is charged to the fumble by Team A (Rule 8-6-1-a). [Cited by 7-2-4-c, 8-7-2-a]