Canadian Red and Whites became eligible for registration in the herd book on July 1, 1969, through an alternate registry. Red and Whites were to be listed with the suffix –RED and Black and Whites with ineligible markings would be registered with the suffix –ALT. Both groups and their progeny would be listed only in the Alternate book and the suffixes had to be part of the name. In the Canadian herd books, all –Alt and -Red animals were listed in the regular herd book in registration number order and were identified with an A in front of their numbers. The Alternates were separate in name only. The A in front of the registration number was discontinued in 1976 and the –Alt suffix was dropped in 1980, but –Red was continued. It did not bar the registration of animals whose hair turned from red to black.