Cal. Pub. Res. Code § 25665.6

The commission may adopt guidelines or other standards at a commission business meeting to implement this article. The Administrative Procedure Act (Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code) does not apply to the adoption of the guidelines or other standards adopted by the commission to implement this article. Before adopting or revising the guidelines or other standards, the commission shall provide an opportunity for public comment and at least one public workshop.