(a) Except as provided in Section 18930 of the Health and Safety Code, the commission may adopt or amend, by vote of a majority of the appointed membership of the commission, rules and regulations to carry out the purposes and provisions of this division, and to govern procedures of the commission.
(b) Except as provided in Section 18930 of the Health and Safety Code and paragraph (3) of subdivision (a) of Section 30620, these rules and regulations shall be adopted in accordance with the provisions of Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code. These rules and regulations shall be consistent with this division and other applicable law.