California Code, Public Resources Code - PRC § 47106

In establishing guidelines on which products should be disposed of as hazardous waste, the board shall consider such factors as toxicity, concentration of toxic ingredients in a product, and other appropriate factors. The board shall also consider the appropriateness of excluding from any listing of household hazardous wastes specific categories of household products, such as products intended for human consumption, personal hygiene products, and other categories of household products intended for general consumer use.