American Football Rules IFAF Approved Ruling 7-1-5:III

III. Before the snap, a Team B player crosses the neutral zone and, without making contact, continues his charge behind a Team A lineman and directly toward the quarterback or kicker. RULING: A Team B player who is on Team A’s side of the neutral zone and is moving in a direct path toward the quarterback or kicker while he is behind an offensive lineman is considered to be interfering with Team A’s formation. Penalty — Team B dead- ball foul, offside. Five yards from the succeeding spot. [Cited by 2-18-2-e, 7-1-5-a-2]