American Football Rules IFAF Approved Ruling 7-3-8:VII, VIII, XI and XII

VII. A88, a spread receiver, runs a 10-yard route and cuts 90 degrees to the sideline. After the ball is thrown, B2 contacts A88 with a tackle, block, grasp or push before A88 touches the ball, a catchable forward pass. RULING: Team B foul, defensive pass interference. Penalty — Spot foul and first down. [Cited by 7-3-8-c]
VIII. A80, a tight end, runs 10 yards into the secondary and cuts toward the goal posts. B1 is one step behind and to the outside when he recovers. After the legal forward pass has been thrown, B1 contacts A80 with a tackle, block, grasp or push as the ball goes over A80’s outstretched hands. RULING: Team B foul for defensive pass interference. Penalty —
Spot foul and a first down if infraction occurs less than 15 yards from previous spot; 15-yard penalty from the previous spot and a first down if the foul is more than 15 yards beyond the neutral zone. [Cited by 7-3-8-c]

XI. Wide receiver A88 and defender B1 are running shoulder to shoulder and side by side 15 yards beyond the neutral zone. A88 is nearest to the sideline, and B1 is nearest to the hash mark. A legal forward pass is thrown toward the goal post. While the ball is in the air, A88 breaks to the inside toward the catchable forward pass. B1 does not move and makes no attempt to go for the pass, and A88 collides with him. RULING: Team B foul, defensive pass interference. Penalty — 15 yards from previous spot and first down. [Cited by 7-3-8-c]

XII. A44, a slot back, runs a pattern 25 yards downfield toward the goal line pylon. B1, a safety, is positioned between A44 and the pylon when the ball is thrown. B1 obviously reduces his speed and collides with A44 before the catchable ball touches the ground. RULING: Team B foul, defensive pass interference. Penalty — 15 yards from the previous spot and first down. [Cited by 7-3-8-c]