California Code, Business and Professions Code - BPC § 4240

(a) The California Hazardous Substances Act, Chapter 4 (commencing with Section 108100) of Part 3 of Division 104 of the Health and Safety Code, applies to pharmacies and pharmacists and any other person or place subject to the jurisdiction of the board.

(b) The board may enforce that act when necessary for the protection of the health and safety of the public if prior regulatory notice is given in accordance with the rulemaking provisions of the Administrative Procedure Act (Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code). Board enforcement shall focus on those hazardous substances that relate significantly to or overlap the practice of pharmacy.

(c) “Poison” as used in this chapter refers to a category of hazardous substances defined in Section 108125 of the Health and Safety Code.  The board may by regulation make the category more specific.