California Code, Business and Professions Code - BPC § 4840.7

(b)(1) A veterinary assistant who has been trained in the area of radiation safety and techniques may operate radiographic equipment under the direct supervision of a registered veterinary technician or a licensed veterinarian.

(2) The responsible managing licensee of a veterinary premises shall maintain records of the training described in paragraph (1).A veterinary assistant for whom records of this training do not exist shall not operate radiographic equipment.

(3) The training records described in paragraph (2) shall be made available to the board upon request and at the time of any inspection of the veterinary premises.