A premiership competition will be formed, where the champion side will then go on to have the chance to play in a NSW state championship of sorts.

While a championship competition will also be forged, where it's hoped small town teams will be able to maintain a competitive level of rugby league in order to continue to thrive.

The championship winner will then play-off against the premiership's bottom side in a promotion-relegation match ahead of the next season.

No clubs or sides have been slated for either premiership at this point in time.

New South Wales Rugby League chief executive David Trodden, head of football Robert Lowrie and NSWRL community rugby league manager Peter Clarke made the announcement in Orange on Monday, with Group 10 chairman Linore Zamparini and his Group 11 counterpart Bob Walsh also in attendance.

The change, effectively dissolving both Group 10 and Group 11 at a senior level, is the biggest shift Walsh has seen in the game in over half-a-century involved in bush footy.

Likewise for Zamparini, who has been chairman of the Western Division's eastern Group competition for over a decade.

Both, however, say the change is vital to ensure rugby league in their region continues to survive, particularly in small towns.

"It's at the top. We've never investigated anything like this before," Walsh said.

"This change is for the betterment of the whole region. This is about keeping the game alive. Our smaller clubs are struggling. This proposal will be a success because we'll drive it to be a success."

Group 10 has battled more than most post-COVID, with small town teams like Blayney and Cowra pulling the pin on the premier league in 2021.

Zamparini said this new structure will ensure those clubs can compete at a level they're comfortable with well into the future.

"I think for the long-term, this is something that has to be done," he added.

Trodden, making the announcement via video link alongside Lowrie and Clarke in Sydney, said the new structure will be a lasting legacy for both senior Group administrators. He branded Walsh and Zamparini "leaders of the game".

The new Western Conference system includes:

Group 10 includes clubs from Bathurst, Blayney, Cowra, Lithgow, Mudgee and Orange, while Group 11 includes clubs from Dubbo, Forbes, Narromine, Nyngan, Parkes and Wellington.

All clubs will be involved in a consolation period, starting now, and the final details on where clubs sit in the grand scheme of things will be revealed come June 15.

"It will become obvious to us and obvious to clubs where they're best placed during this consolation period," Trodden added.

"There's no fixed view as to who's playing in what competition."

Trodden spruiked the announcement as a massive opportunity for the game, with Western the first region to see any serious change in the wake of the NSWRL one state strategy announced last year.

And while it'll be the Group competitions mainly impacted, Trodden said all of Western's 39 clubs may be involved.

Junior competitions will remain within group boundaries.

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