ACA is the American Canine Association. My little girl is registered with them. I dont know much about the different clubs but from what I have learned on here the AKC is supposed to be the best. If you are just wanting to get her to love though who cares. She is beautiful and you are wanting to give her a good home. The only reason I registered mine was because I wanted to breed her with my male who is AKC registered and that way I could register the pups. I register them under ACA and if that bothers the buyer then thats there problem. Doesnt make them any less a full bred Yorkie.
