Bingo!
Altered dogs can and do show in every aspect of AKC showing, EXCLUDING the Conformation class. The conformation class is what is shown on TV at say, Westminster. The entire purpose of showing in conf. is to compare your dog to the ideal standard of the breed, and in essence, have judges tell you if your dog should be bred or not. Dogs that do well, earn their championship and score highly should theoretically be bred (Bearing health tests of course). So of course, an altered dog would be a disqualificati
on
However, in non-akc fun matches, which a lot of breed clubs do, you can show altered dogs just for fun!