I don't know about CKC but UKC you can register any AKC dog with papers. Even AKC limited ones to full UKC reg. Yes, it was quite a bone of contention with UKC for awhile. You can put any owner on you want, taking the other person off and put on someone else entirely. However UKC limits you to only 2 co-owners. And if the bitch is bred only under UKC papers, AKC will not register back the pups. So she's not really getting herself anywhere to breed under UKC unless she intends to do only UKC permanently. Hope this answers your question, Cyndy Margaret Corsair GSD & AE ============================================================================ POST is Copyrighted 2007. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxxx VISIT OUR WEBSITE - www.showgsd.org ============================================================================