Catalans and Warrington have both been fined for the crowd trouble that occurred when the two sides played each other in Perpignan on August 3.
The Dragons have been fined £27,500 and the Wolves £15,000 following an RFL investigation.
Both sides have accepted their fines and acknowledged the incident brought the game into disrepute.
In a statement on the RFL website, RFL Chief Regulatory Officer Karen Moorhouse said: “The behaviour of some of the supporters at this fixture was completely unacceptable and has no place in Rugby League – importantly, both Catalans Dragons and Warrington Wolves have accepted that, and committed themselves to taking positive steps in response.
“All clubs have a responsibility to ensure that everybody who comes into a stadium can enjoy the game – that is a key part of our Enjoy the Game campaign, which promotes a welcoming and enjoyable experience for everyone at Rugby League, wherever it is played and whatever their role.
“This incident was highly unusual, in a game which has always taken pride in the behaviour of the vast majority of Rugby League supporters, and the family traditions it has encouraged; however, we are aware that it was not the only disappointing off-field incident in the 2019 season, and it is important we are not complacent in that regard. We will be working with clubs to reinforce the importance of the Enjoy the Game campaign during the off-season.”