Cal. Food and Agricultural Code - FAC § 14200. Section 14200.
The Legislature hereby declares that this chapter, which prescribes the distribution and use of livestock drugs, is intended to assure that such drugs are available to livestock producers for their use in protecting the health of the livestock population of the state, and that such use will in turn benefit the general public by providing an abundant supply of wholesome food and fiber.
It is further declared that nothing in this chapter is intended to prevent a livestock producer from administering livestock drugs safely and effectively when such use is in accordance with the labeling directions for the drug used.