Cal. Bus. & Prof. Code § 2216.1

On and after July 1, 2000, it is unprofessional conduct for a physician and surgeon to perform procedures in any outpatient setting except in compliance with Section 2216, unless the setting has a minimum of two staff persons on the premises, one of whom shall either be a licensed physician and surgeon or a licensed health care professional with current certification in advanced cardiac life support (ACLS), as long as a patient is present who has not been discharged from supervised care.