New Zealand is also set to trial two referees in the 2016 NPC.
TIMELINE - RUGBY POINTS SCORING
In the early days of the game you only scored points by kicking goals. Under the first laws of the game to earn a "try" at goal you had to get the ball over the goal line between the posts and would be awarded one point.
Goals were increased to three points with a try one point.
Points for penalty goals were introduced at two points.
Penalties were increased to four points with a converted try worth five points and unconverted tries two points.
Penalties reduced to two points and unconverted tries increased to three points.
Penalties increased to four points and field goals set at four points.
Penalties and field goals reduced to three points.
Points for a try increased to four points.
Points for a try increased to five points.
Australia trials six point tries and reduces penalties to two in domestic competition.