1. 1-Step Rule. Pass rushers are responsible for being aware of the position of the ball in passing situations. If a pass rusher clearly should have known that the ball had already left the passer's hand before contact was made, unnecessary roughness will be called. The Referee will use the release of the ball from the passer's hand as his guideline that the passer is now fully protected. Once a pass has been released by a passer, a rushing defender may make direct contact with the passer only up through the rusher's first step after such release (prior to second step hitting the ground); thereafter the rusher must be making an attempt to avoid contact and must not continue to "drive through" or otherwise forcibly contact the passer. Incidental or inadvertent contact by a player who is easing up or being blocked into the passer will not be considered significant.
2. Stuffing the Passer. A rushing defender is prohibited from committing such intimidating and punishing acts as "stuffing" a passer into the ground or unnecessarily wrestling or driving him down after the passer has thrown the ball, even if the rusher makes his initial contact with the passer within the one-step limitation provided for above. When tackling a passer who is in a virtually defenseless posture (e.g., during or just after throwing a pass), a defensive player must not unnecessarily or violently throw him down and land on top of him with all or most of the defender's weight. Instead, the defensive player must strive to wrap up or cradle the passer with the defensive player's arms.