Letter came down from AKC (can't link it atm, sorry): Breakaway tires are legal for AKC agility starting March 1. They are optional and will not be scored if the tire "breaks" as a dog passes through. Starting September 4, breakaway tires will be mandatory for all AKC agility trials. At this time and on forward breaking the tire will be scored as a fault (F). Personal addition: Yay!