The French rugby league system is a four tiered structure with the major national club competition being the Super XIII.
The teams in each competition can change each year depending on final standings and relegation/promotion.
If a club wants to go up or down a level then they will consult the Fédération Française de Rugby à XIII who will make the decision.
Winning teams are promoted to Super XIII, providing they meet stadium/financial requirements.
They spent one year in the British third division, and were promoted to the Super League following winning the 2021 Million Pound Game.