Complex sentence: That working party brought together several high profile competitors, judges and show managers to review the sport, this culminated in the revised rules coming into force on the 1.1.2007 which now includes the ability to work towards qualification after the dogs name.
Split into simpler sentences: That working party brought together several high profile competitors, judges, and show managers to review the sport. This culminated in the revised rules coming into force on the 1.1.2007, which now includes the ability to work towards qualification after the dogs name.