The NRL announced a raft of rule changes with a strong focus on stamping out time-wasting for the 2014 season.
The changes include structured times when a captain can speak to a referee during a match and stopping the clock during the last five minutes of a game following a conversion or penalty shot at goal.
Changes have also been made to deter crusher and cannonball tackles.
Crusher tackles will be graded at the "higher end'' of charges by the match review committee, while referees have been instructed to call held earlier when a player is trapped in an upright position to prevent a third defender coming in late and making a cannonball tackle.
NRL head of football Todd Greenberg said the changes were made after consultation with coaches, clubs and 11,000 members and fans who responded to an online review.