Cal. Gov. Code § 7929.410

Except as provided in Sections 7924.510, 7924.700, and 7929.610, this division does not require disclosure of records of the State Compensation Insurance Fund that relate to the impressions, opinions, recommendations, meeting minutes of meetings or sessions that are lawfully closed to the public, research, work product, theories, or strategy of the fund or its staff, on the development of rates, contracting strategy, underwriting, or competitive strategy pursuant to the powers granted to the fund in Chapter 4 (commencing with Section 11770) of Part 3 of Division 2 of the Insurance Code.