Cal. Code Regs. tit. 4, § 1812 – Registration Required for Cal-Bred Eligibility.

Unless the breeder or owner of a California-bred horse has registered the same with the official registering agency for the California-bred horses and attested that the horse is a California-bred, such horse is ineligible for entry in races for California-bred horses. The breeder of such horse is not entitled to a California-bred breeder's award for such horse.