9-4-3k The name plate area (directly below the back collar) has been added to the criteria for an illegal horse-collar tackle. It is a foul to grab the inside back, name plate area or side collar of either the shoulder pads or the jersey of the runner and subsequently pull (backwards or sideward) that opponent to the ground, even if possession is lost. The horse-collar is enforced as a live-ball foul.
9-4-3k The foul for an illegal horse collar tackle is treated as a live ball foul. Though the runner ends up short of the line to gain as in PlayPic B, the penalty results in a first down.
9-4-3k No player or non-player shall grab the inside back or side collar of either the shoulder pads or the jersey of the runner and subsequently pull that opponent to the ground.
9-4-3k A horse-collar is a foul. A horse-collar occurs when a defender grabs the runner by inside back collar of the shoulder pads or jersey, or the inside collar of the side of the shoulder pads or jersey, and subsequently pulls (backward or sideward) that opponent to the ground, even if possession is lost. The penalty is 15 yards and is enforced as a live ball foul.
9-4-3k If one would be tackler has grabbed the shoulder pads or collar of the runner, but that opponent is brought down as the result of a more conventional tackle by another player, there is no foul.
9-4-3k If the horse collar tackle (PlayPic A) is not completed until after the runner crosses B's goal line or a sideline (PlayPic B), it is enforced as a live ball foul. Team A may choose enforcement of the 15 yard penalty on the try or on the subsequent kickoff.
9-4-3k The horse collar foul is enforced as a live ball foul. In PlayPic A, the horse-collar was initiated inbounds but ends out of bounds short of the line to gain PlayPic B. That is a live ball foul carrying a 15 yard penalty. Enforcement on the play illustrated will result in a first down for A.