New law changes:
1. It will no longer be mandatory for the referee to issue a yellow or red card to a player on the defending team when awarding a penalty try. Any sanction will be at the discretion of the referee. (Law 8.3)
2. Accidental offsides and teams delaying playing the ball away from a ruck will result in free kicks rather than scrums. (Law 10.5 and Law 15.17)
3. After the referee has called “use it” at the ruck, no additional players from the team in possession may join the ruck. (Law 15.17)
4. Teams will be permitted to pass the ball back into their half before kicking a 50:22. (Law 18.8a)
5. Players will be allowed to take quick taps within one metre either side of the of the mark, or anywhere behind the mark, if they are within that two-metre channel running parallel to the touchlines. (Law 20.2)
Also
Super Rugby Pacific has confirmed that the TMO will only intervene if the on-field referee has missed a clear and obvious infringement in the lead-up to a try, or if the referee misses serious foul play.
“In Super Rugby Pacific the TMO will only intervene unprompted if the referee has overlooked an act of serious foul play (yellow card level or above), or a clear and obvious infringement leading to a try,” Super Rugby said in a press release.
“The assistance of the TMO at any other time can only be instigated by the referee, which both empowers the on-field match officials and improves the flow of the game.