I think you may be thinking about the CKC, they will register mixed breeds, however like you said APRI, may have changed. APRI was founded by commercial breeders and has major ties with big businesses, and this means puppy mills. This link says that, "APRI - AMERICA'S PET REGISTRY INC. Advertises free registration for commercial breeders. Non Profit 'dedicated to the preservation of the professional pet industry', dogs and cats. Founded by retailers of pets (commercial breeders and resellers). Here's a link that describes the different registries and what they involve." For more information on these alternative registries see:
Registries.
Here is a list that Wikipeda offers as the major most accepted clubs in English speaking countries. As you see none of the alternative registries are on it. American Kennel Club (United States)
· Australian National Kennel Council
· Canadian Kennel Club
· The Kennel Club (United Kingdom)
· Kennel Club of India
· Kennel Union of Southern Africa
· United Kennel Club (United States)
Kennel club - Wikipedia, the free encyclopedia