Cal. Health and Safety Code § 122070

(a) If a licensed veterinarian states in writing that within 15 days after the purchaser has taken physical possession of a dog following the sale by a breeder, the dog has become ill due to any illness or disease that existed in the dog on or before delivery of the dog to the purchaser, or, if within one year after the purchaser has taken physical possession of the dog after the sale by a breeder, a veterinarian licensed in this state states in writing that the dog has a congenital or hereditary condition that adversely affects the health of the dog, or that requires, or is likely in the future to require, hospitalization or nonelective surgical procedures, the dog shall be considered unfit for sale, and the breeder shall provide the purchaser with any of the following remedies that the purchaser elects: (1) Return the dog to the breeder for a refund of the purchase price, plus sales tax, and reimbursement for reasonable veterinary fees for diagnosis and treating the dog in an amount not to exceed the original purchase price of the dog, including sales tax. (2) Exchange the dog for a dog of the purchaser’s choice of equivalent value, providing a replacement dog is available, and receive reimbursement for reasonable veterinary fees for diagnosis and treating the dog in an amount not to exceed the original purchase price of the dog, plus sales tax on the original purchase price of the dog. (3) Retain the dog, and receive reimbursement for reasonable veterinary fees for diagnosis and treating the dog in an amount not to exceed 150 percent of the original purchase price of the dog, plus sales tax. (b) If the dog has died, regardless of the date of death of the dog, obtain a refund for the purchase price of the dog, plus sales tax, or a replacement dog of equivalent value of the purchaser’s choice, and reimbursement for reasonable veterinary fees for diagnosis and treatment of the dog in an amount not to exceed the purchase price of the dog, plus sales tax, if any of the following conditions exist: (1) A veterinarian, licensed in this state, states in writing that the dog has died due to an illness or disease that existed within 15 days after the purchaser obtained physical possession of the dog after the sale by a breeder. (2) A veterinarian, licensed in this state, states in writing that the dog has died due to a congenital or hereditary condition that was diagnosed by the veterinarian within one year after the purchaser obtained physical possession of the dog after the sale by a breeder.