Cal. Bus. & Prof. Code § 2564.5

A registered contact lens dispenser fitting contact lenses shall maintain accessible handwashing facilities on the premises and those facilities shall be used before each fitting of contact lenses. For purposes of this section, “accessible handwashing facilities” means a clean and sanitary sink with clean running water, disinfectant soap, and adequate drying devices such as a towel or electric hand dryer, which is physically separate from a lavatory or bathroom and is accessible to all relevant persons.