From ASCA’s website, “The purpose of the Stockdog Program is to preserve and promote the instinct of the Australian Shepherd to be a versatile stockdog. The program showcases, preserves, encourages, retains, challenges, and rewards the working Australian Shepherd through the use of certification programs and challenging trialing disciplines on several classes of stock.”  Per the ASCA Stockdog Program Brochure, “ASCA’s  Stockdog Program currently recognizes over 50 breeds.”