A defensive player may not tackle or hold an opponent other than a runner. Otherwise, he may use his hands, arms, or body only:
(a) To defend or protect himself against an obstructing opponent.
Exception: An eligible receiver is considered to be an obstructing opponent ONLY to a point five yards beyond the line of scrimmage unless the player who receives the snap clearly demonstrates no further intention to pass the ball. Within this five-yard zone, a defensive player may chuck an eligible player in front of him. A defensive player is allowed to maintain continuous and unbroken contact within the five-yard zone until a point when the receiver is even with the defender. The defensive player cannot use his hands or arms to push from behind, hang onto, or encircle an eligible receiver in a manner that restricts movement as the play develops. Beyond this five-yard limitation, a defender may use his hands or arms ONLY to defend or protect himself against impending contact caused by a receiver. In such reaction, the defender may not contact a receiver who attempts to take a path to evade him.
(b) To push or pull opponent out of the way on line of scrimmage.
(c) In actual attempt to get at or tackle runner.
(d) To push or pull opponent out of the way in a legal attempt to recover a loose ball.
(e) During a legal block on an opponent who is not an eligible pass receiver.
(f) When legally blocking an eligible pass receiver above the waist.
Exception: Eligible receivers lined up within two yards of the tackle, whether on or immediately behind the line, may be blocked below the waist at or behind the line of scrimmage. NO eligible receiver may be blocked below the waist after he goes beyond the line. (Illegal cut)
Note: Once the quarterback hands off or pitches the ball to a back, or if the quarterback leaves the pocket area, the restrictions (illegal chuck, illegal cut) on the defensive team relative to the offensive receivers will end, provided the ball is not in the air.
A defensive player may not contact an opponent above the shoulders with the palm of his hand except to ward him off on the line. This exception is permitted only if it is not a repeated act against the same opponent during any one contact. In all other cases the palms may be used on head, neck, or face only to ward off or push an opponent in legal attempt to get at the ball.
