Beginning January 1, 2018, a medically important antimicrobial drug shall not be administered to livestock unless ordered by a licensed veterinarian through a prescription or veterinary feed directive, pursuant to a veterinarian-client-patient relationship that meets the requirements of § 4826.6 of the Business and Professions Code.

(Amended by Stats. 2023, Ch. 475, Sec. 8. (AB 1399) Effective January 1, 2024.)