California Code, Business and Professions Code - BPC § 6234

(a) Confidential and shall not be disclosed pursuant to any state law, including, but not limited to, the California Public Records Act (Division 10 (commencing with Section 7920.000) of Title 1 of the Government Code). This confidentiality shall be absolute unless waived by the attorney.

(b) Exempt from the provisions of Section 6086.1.

(c) Not discoverable or admissible in any civil proceeding without the written consent of the attorney to whom the information pertains.

(d) Not discoverable or admissible in any disciplinary proceeding without the written consent of the attorney to whom the information pertains.

(e) Except with respect to the provisions of subdivision (d) of Section 6232, the limitations on the disclosure and admissibility of information in this section shall not apply to information relating to an attorney's noncooperation with, or unsuccessful completion of, the Attorney Diversion and Assistance Program, or any subcommittee or agent thereof, or to information otherwise obtained by the Office of the Chief Trial Counsel, by independent means, or from any other lawful source.