ARTICLE 4.Violation of each of the following (a.-c.) is a live-ball foul; the play is allowed to continue.
b. Player in Motion.
1. One back may be in motion, but that back may not be moving toward their opponent’s goal line. 2. A player in motion at the snap must have satisfied the one-second rule—i.e., that player may not start their motion before any shift has ended.
PENALTY [a-c]—Live-ball foul: Five yards from the previous spot. For live-ball fouls occurring when or after the snap starts during punt plays: Five yards from the previous spot, or if the punt crosses the neutral zone, Five yards from the spot where the subsequent dead-ball belongs to Team B. [S19; S20]
