NBA vice president of basketball operations Stu Jackson confirmed Wednesday that several new rule interpretations will be a point of emphasis for the league's referees when the regular season begins on Dec. 25.

"Rip-through" moves, in which an offensive player swings the ball into a defender's outstretched arm and then attempts a shot once he has created contact, will be considered non-shooting fouls if the contact begins before the offensive player starts his shooting motion.

Also, on drives to the basket, a shooting foul will be called only if contact occurs after the offensive player has begun his shooting motion, not after he has initiated his leap toward the basket.

"Certain types of contact involving the shooter were all being called in his favor," Jackson said. "It doesn't look good for the game. There was a strong feeling that those types of plays were creating an ill-advised reward for the shooter, often with three free throws."