The NRL is expected to start its biological passport program within a month, as part of its response to the doping controversy hanging over the game.
Up to 70 players, including Australia and State of Origin stars, will have blood samples taken to help rugby league's fight against doping.
Instead of detecting the prohibited substance or methods used, an Athlete Biological Passport (ABP) aims to look at the effects of blood doping from multiple samples taken over time.
"There is still some work to finalise but we'll be in a position to make some firm announcements in the near future,'' NRL chief executive David Smith told The Daily Telegraph.
"It's an area in which we've made significant progress.