Cal. Gov. Code § 56655

If two or more proposals pending before the commission conflict or in any way are inconsistent with each other, as determined by the commission, the commission may determine the relative priority for conducting any further proceedings based on any of those proposals. That determination shall be included in the terms and conditions imposed by the commission. In the absence of that determination, priority is given to that proceeding which shall be based upon the proposal first filed with the executive officer.