California Code, Fish and Game Code - FGC § 3008

The physical control of a dog by its owner while the dog is engaged in hunting in an area where the owner is otherwise authorized to hunt, shall be as required by this code or regulations made pursuant thereto.

Dogs which are used for hunting which have been vaccinated for rabies in their county of residence in conformity with state law regulating vaccinations in rabies areas are not subject to rabies vaccination requirements of local ordinances outside their county of residence.