Cal. Health & Safety Code § 113709

This part does not prohibit a local governing body from adopting an evaluation or grading system for food facilities, from prohibiting any type of food facility, from adopting an employee health certification program, from regulating the provision of consumer toilet and handwashing facilities, from adopting requirements for the public safety regulating the type of vending and the time, place, and manner of vending from vehicles upon a street pursuant to its authority under subdivision (b) of Section 22455 of the Vehicle Code, or from prohibiting the presence of pet dogs in outdoor dining areas of food facilities.