California Code, Business and Professions Code - BPC § 4886

(a) Requiring the licensee or registrant to obtain additional professional training and to pass an examination upon completion of the training.

(b) Requiring the licensee or registrant to pass an oral, written, practical, or clinical examination, or any combination thereof to determine his or her present fitness to engage in the practice of veterinary medicine or to practice as a veterinary technician.

(c) Requiring the licensee or registrant to submit to a complete diagnostic examination by one or more physicians appointed by the board. If the board requires the licensee or registrant to submit to that examination, the board shall receive and consider any other report of a complete diagnostic examination given by one or more physicians of the licensee's or registrant's choice.

(d) Restricting or limiting the extent, scope, or type of practice of the licensee or registrant.