American Football Rules IFAF Approved Ruling 7-3-2:VIII-X
VIII. Quarterback A10 sprints toward a sideline and is outside the tackle box when he throws a legal forward pass that is batted down by a defensive lineman and lands behind the neutral zone. RULING: Legal play. Without the batting the ball would have landed beyond the neutral zone, so A10 has satisfied the spirit of the rule. [Cited by 7-3-2-h]
IX. Third and five at the A-40. QB A12 drops back in the pocket to pass. Under a heavy rush he throws a backward pass to back A22 who carries the ball outside the tackle box. About to be tackled, A22 at the A-35 throws a forward pass that crosses the neutral zone and lands in an area 20 yards away from the nearest Team A eligible receiver. RULING: Foul, intentional grounding. The tackle-box rule exception applies only to the player who controls the snap or the resulting backward pass. Loss of down at the spot of the foul. Fourth and 10 at the A-35. (Rule 7-3-2-h Exception) [Cited by 7-3-2-h]
X. Quarterback A12 is in a shotgun formation. He muffs the backward pass from the snapper and the ball is picked up by A63 inside the tackle box. Under a heavy rush, A63 gets outside the tackle box and throws the ball incomplete beyond the line of scrimmage. RULING: Legal play. A63 controlled the backward pass that resulted from the snap. (Rule 7-3-2-h Exception) [Cited by 7-3-2-h]