Cal. Health & Safety Code § 11831.65

(a) A laboratory or certified outpatient treatment program that leases, manages, or owns housing units that are offered to individuals who concurrently utilize laboratory or outpatient services shall maintain separate contracts for the housing. The contract shall clearly state that payment for housing is the responsibility of the individual and does not depend on insurance benefits. The contract shall include a repayment plan for any subsidized rent, and the laboratory or certified outpatient treatment program shall make a good faith effort to collect the debt. The offer for housing shall not depend on the individual’s agreement to receive services from either the laboratory or the certified outpatient treatment program.
(b) An alcohol or other drug recovery or treatment facility licensed under this part shall only offer an individual discounted housing following discharge from the facility if all of the following conditions are met:
1. (1) An alcohol or other drug recovery or treatment facility and the individual enter into a written contract for housing that is separate from the contract for treatment, if the individual also pursues outpatient treatment.
2. (2) The contract described in paragraph (1) includes a repayment plan for any subsidized rent, and the alcohol or other drug recovery or treatment facility makes a good faith effort to collect the debt.
3. (3) The offer for housing is not dependent upon the individual’s agreement to attend outpatient treatment at a program that is owned or operated by the alcohol or other drug recovery or treatment facility.
(c) An alcohol or other drug recovery or treatment facility licensed under this part shall only offer transportation services to an individual who is seeking recovery or treatment services if all of the following conditions are met:
1. (1) Any ground transportation provided to an individual who is seeking recovery or treatment services is for a distance of less than 125 miles.
2. (2) Any air transportation provided to an individual who is seeking recovery or treatment services includes a return ticket that may be used by the individual upon discharge.
3. (3) A return ticket not used by an individual upon discharge is made available to the individual upon request for a period of one year following the individual’s discharge.
(d) This section does not prohibit a person, program, or entity from providing an individual educational or informational materials about community resources, including, but not limited to, housing assistance.