American Football NCAA Approved Ruling 8-7-2
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).
II. Any kick by Team A strikes the ground and a Team B player bats the ball across Team B’s goal line, where Team B recovers it while grounded or it goes out of bounds. RULING: New impetus is given by Team B. Safety, two points for Team A. Batting the kick is considered to have destroyed the impetus of the kick and imparted a new impetus. However, merely touching or deflecting the kick, or being struck by it, does not destroy the impetus of the kick (Rule 8-5-1-a).
III. Team A punts. The ball is touched by Team B (no impetus added) and crosses Team B’s goal line. Then Team B falls on the ball or the ball goes out of bounds from the end zone. RULING: Touchback. The same ruling applies if a kick in flight strikes Team B or merely is deflected by an attempted catch. Team B may recover and advance, and it is a touchback if a Team B player is downed in the end zone or goes out of bounds behind the goal line (Rule 8-6-1-a).
IV. Team A free kicks from its 35-yard line. The ball is rolling on the ground on Team B’s three-yard line when B10 kicks the ball into the end zone and over the end line. RULING: Safety, due to the new impetus by B10. Team B foul for illegally kicking the ball. If the penalty (10 yards) is accepted, the down is repeated with the free kick at the A-45. (Rules 9-4-4 and 10-2-2-d-4).