The laws have already been implemented in the southern hemisphere since the beginning of 2016, but are yet to be implemented by teams from the Northern Hemisphere. The Northern hemisphere rugby union will fall in line with the Southern hemisphere on July 1 2016.
The following were the ammendments
The replacement of a player injured following foul play does not count as one of the allotted number of replacements available to that team
Advantage may be played following a scrum collapse if there is no risk to player safety
Play acting or “simulation” is specifically outlawed in the game in a move that formalises resistance to a practice that has been creeping into the game in recent years. Any player who dives or feigns injury in an effort to influence the match officials will be liable for sanction
Teams must be ready to form a scrum within 30 seconds of the scrum being awarded, unless the referee stops the clock for an injury or another stoppage
At a re-set scrum following a 90-degree wheel, the ball is thrown in by the team that previously threw it in rather than the team not in possession
The scrum-half of the team not in possession at a scrum may not move into the space between the flanker and number eight
When the ball has been at the number eight’s feet in a stationary scrum for 3-5 seconds, the referee will call “use it” and the attacking team must use the ball immediately