Cal. Health & Safety Code § 18930.5

(a) If no state agency has the authority or expertise to propose green building standards applicable to a particular occupancy, the commission shall adopt, approve, codify, update, and publish green building standards for those occupancies.
(b) The commission and other state agencies that propose green building standards shall allow for input by other state agencies that have expertise in green building subject areas. The process by which these other state agencies shall submit suggested changes for consideration shall be adopted as administrative regulations in Part 1 of Title 24 of the California Code of Regulations. These administrative regulations shall include, but not be limited to, all of the following:
1. (1) The timing for receipt of suggested changes.
2. (2) Whether the suggested changes should be considered for adoption as mandatory or voluntary green building standards.
3. (3) The concurrent submission of appropriate technical analysis that could be used by the agency to support the proposal under the requirements of subdivision (a) of Section 18930, including the rationale supporting the recommendation that the item be considered for adoption as mandatory or voluntary green building standards.
4. (4) The concurrent submission of fiscal analysis necessary for submission to the Department of Finance and for use in complying with the cost of compliance provisions of Sections 11346.2 and 11346.5 of the Government Code.
5. (5) The manner in which the suggestions will be made available to the public.
(c) If a state agency that proposes green building standards offers advice to the commission via an advisory panel appointed pursuant to Section 18927, as part of its presentation it shall, to the extent feasible, indicate those voluntary green building measures that may be considered for possible adoption as mandatory within the next two subsequent adoption cycles.