ADRK - Allgemeiner Deutscher Rottweiler Klub. This is the official governing body for Rottweilers in Germany.

VDH - Verband fr das Deutsche Hundewesen. The official body that governs all dog breeds in Germany, of which the ADRK is a division.

FCI - Federation Cynologique International. The International governing body in which most countries are members, notable xeceptions, the United States and Great Britain. In addition to other things, the FCI sanctions country championships and International championships. The rules and titles of the FCI are the most widely accepted.

AKC - American Kennel Club. The American organization responsible for dog registrations. They also sanction conformation, sporting and other events.

ARC - American Rottweiler Club. The division of the AKC that has special interest in Rottweilers.

USRC - United States Rottweiler Club. An organization in the US that emulates the ADRK and sponsors "German style" events including conformation shows and working trials.

ARV - American Rottweiler Verein. An organization in the US that emulates the ADRK and sponsors "German style" events including conformation shows and working trials