SOCCER boss David Gallop has backed supporter groups to effectively self-regulate the actions of their members after the behaviour of fans was again called into question.

Football Federation Australia said on Monday it will impose tough sanctions on fans who throw flares or racially abuse players, but praised the overall conduct of most A-League spectators.

Speaking at a function to promote the A-League's schedule over the holiday season, Gallop reiterated the governing body's zero-tolerance stance towards fans throwing flares by pursuing five-year bans for those responsible.

But he has put his faith in the leadership of supporter groups in stamping out the actions of troublemakers.