California Code, Public Resources Code - PRC § 25531

(a) The decisions of the commission on any application for certification of a site and related facility are subject to judicial review by the Supreme Court of California.

(b) No new or additional evidence may be introduced upon review and the cause shall be heard on the record of the commission as certified to by it.  The review shall not be extended further than to determine whether the commission has regularly pursued its authority, including a determination of whether the order or decision under review violates any right of the petitioner under the United States Constitution or the California Constitution.  The findings and conclusions of the commission on questions of fact are final and are not subject to review, except as provided in this article.  These questions of fact shall include ultimate facts and the findings and conclusions of the commission.  A report prepared by, or an approval of, the commission pursuant to Section 25510, 25514, 25516, or 25516.5, or subdivision (b) of Section 25520.5, shall not constitute a decision of the commission subject to judicial review.

(c) Subject to the right of judicial review of decisions of the commission, no court in this state has jurisdiction to hear or determine any case or controversy concerning any matter which was, or could have been, determined in a proceeding before the commission, or to stop or delay the construction or operation of any thermal powerplant except to enforce compliance with the provisions of a decision of the commission.

(d) Notwithstanding Section 1250.370 of the Code of Civil Procedure:

(e) No decision of the commission pursuant to Section 25516, 25522, or 25523 shall be found to mandate a specific supply plan for any utility as prohibited by Section 25323.