Super League clubs have voted to reduce the size of the league to 12 teams in 2015.
From next year, Rugby League’s elite competition will feature 12 clubs alongside a 12-team Championship that splits into three groups of eight.
At a meeting in St Helens, the clubs voted unanimously to return promotion and relegation and pledged their support to the proposed structure which is a central tenet of the RFL’s Policy Review.
Super League (Europe) Chairman Brian Barwick said: “I would like to thank the clubs for their contribution to what was a very fruitful and positive meeting.
“There was a full and frank debate about the competition structures and a commitment to support the proposed format.
“The Super League clubs’ decision will now go before the RFL’s independent Board of Directors for ratification next week.”