Fewer interchanges and a shot clock are being introduced to NRL in a bid to improve the flow of matches.
The NRL is to reduce the number of permitted interchanges from 10 to eight from next season, while a shot clock will also be introduced to reduce stoppages.
Drop outs and scrums will be subject to the shot clock - details of which are yet to be confirmed - and interchanges could be reduced further pending analysis during the 2016 campaign.
"We think these changes are a significant first step because they will reward endurance and fitness and open up the game," said NRL head of football Todd Greenberg. "As a result of these changes, there will be a greater emphasis on skill to complement power and size.
"We have conducted significant research into the evolution of, and current trends in, the game " how the players are getting bigger, faster and stronger, but more importantly what they will look like 10 years from now.
"We believe that, unless we take action now, the game will become more structured, defensive and predictable in years to come.
"So these changes are designed to ensure we stay ahead of the curve - it is about shaping how the game will look in 10 years and beyond."