Cal. Health & Safety Code § 11831.9
(a) The Legislature recognizes that consumers with substance use disorders have disabling conditions, and that these consumers and their families are vulnerable and at risk of being easily victimized by fraudulent marketing practices that adversely impact the delivery of health care. To protect the health, safety, and welfare of this vulnerable population, an operator of a licensed alcohol or other drug recovery or treatment facility, as defined in Section 11834.02, or a certified alcohol or other drug program, shall not do any of the following: