Cal. Pub. Util. Code § 345.6
(a) Notwithstanding the requirements related to energy markets in subdivision (b) of Section 345.5, the Independent System Operator and the electrical corporations that are participating transmission owners whose transmission systems are operated by the Independent System Operator may use voluntary energy markets governed by an independent regional organization only if all of the following requirements are satisfied:
(b) On or after January 1, 2028, the Independent System Operator may implement tariff modifications accepted by the Federal Energy Regulatory Commission to operate the energy markets whose rules are governed by an independent regional organization, as provided in subdivision (a), if the governing board of the Independent System Operator has adopted a resolution finding that each of the requirements of paragraphs (1) to (13), inclusive, of subdivision (a) have been or will be adopted by the independent regional organization. The governing board of the Independent System Operator may adopt the resolution if the Independent System Operator satisfies all of the following requirements before adopting the resolution:
(e)
(f)
(g)
(2) The Independent System Operator shall not change its balancing authority area from that which existed on December 31, 2024, except as follows:
(h)
(1)
(k) For purposes of this section, both of the following definitions apply: