French rugby is to limit the number of overseas players plying their trade domestically in their top-flight clubs.
Clubs will be set a minimum number of home-grown players and will be allowed to have no more than 30% of their squad from overseas by the 2011/12 season.
Three London Wasps players, James Haskell, Tom Palmer and Riki Flutey, will all move to France next season.
Newcastle Falcons outside-half Jonny Wilkinson has also been linked with a move to France.
The LNR added that there would be a salary cap introduced at French rugby's top-flight clubs by the 2010/11 season to limit financial risks.