A recognized horse breed is one which has an Association with a Stud Book and Breeding Record. Most Recognized Breeds have certain Foundation Sires, and all foals registered must trace their ancestry back to theses stallions. There are certain breeds known as "color breeds", in which qualification is based on a specific color. Appaloosa, Palomino and Spotted Horse Associations are examples of these. In addition to the purebred Registrations, certain associations also have "Half-Bred" books. The offspring can be registered only if one parent is a purebred.