1.1Players cannot use their arms or hands to impede or redirect an opponent. Violation of this rule is Interference.
1.2Players may touch an opponent to feel their relative positioning as long as the opponent is not impeded or redirected. Players may touch the goal posts with their hands if such touching does not help them change their direction.
2. Interference
2.1Interference is when a player impedes an opponent's direct path to the ball, the ball carrier or the intended receiver, with or without contacting the opponent.
2.2A player may assume a stationary position if the intent is obviously to avoid interfering with an opponent. A player may cut across the path of an opponent if the opponent's progress is not impeded or redirected. Violation of these rules is an interference or illegal contact penalty.
2.3When the ball carrier uses stationary teammates as a means of blocking the opponent from getting to the ball carrier, such stationary teammates are not to be penalized form obstruction unless they move from their spot. This includes any interaction between the center and the rusher.
2.4All players have a Right of Way that allows them to move freely on the field and opponents cannot interfere with them.
2.5Players also have a Right of Place which supersedes all other rights on the field when they are stationary and not moving their feet or body to affect the play. At the snap of the ball, if an offensive player does not move, no penalty shall be called.
3. Illegal Participation
3.1A player who goes out of bounds shall not participate further in that play unless that player went out of bounds as a result of a slippery field, missed flag pull, or contact with an opponent.
4. Illegal Substitution
4.1Any offensive player substitution after the center is prepared to snap the ball and any defensive player substitution during the play.