Cal. Health & Saf. Code § 101848.2
The records of the hospital authority, whether paper records, records maintained in the management information system, or records in any other form that relate to trade secrets or to payment rates or the determination thereof, or that relate to contract negotiations with providers of health care, shall not be subject to disclosure pursuant to the California Public Records Act (Division 10 (commencing with Section 7920.000) of Title 1 of the Government Code). The transmission of the records, or the information contained therein in an alternative form, to the board of supervisors shall not constitute a waiver of exemption from disclosure, and the records and information once transmitted shall be subject to this same exemption. The information, if compelled pursuant to an order of a court of competent jurisdiction or administrative body in a manner permitted by law, shall be limited to in camera review, which, at the discretion of the court, may include the parties to the proceeding, and shall not be made a part of the court file unless sealed.
Ca. Health and Saf. Code § 101848.2