Cal. Government Code § 56131

The executive officer shall file with the Public Utilities Commission a certified copy of any proposal for a change of organization or a reorganization which provides, as a part of the change of organization or reorganization, that gas or electric service, as defined in subdivision (c) of Section 56129, be furnished by a district within any of the territory affected by the change of organization or reorganization. The certified copy need not contain any signatures if the proposal is by petition. After that change of organization or reorganization has been ordered, the clerk of the district shall file with the Public Utilities Commission a certified copy of any ordinance, resolution, or order made by the board of directors of a district proposing to furnish gas or electric service, as defined in subdivision (c) of Section 56129, within the territory. After that filing, the Public Utilities Commission shall cause an investigation to be made and may conduct any hearings in connection with the proposal. Upon completion of the investigation and not later than 90 days after the date of the filing, the Public Utilities Commission shall make a report to the commission stating whether, in the opinion of the Public Utilities Commission, the proposed service by the district within the territory will substantially impair the ability of the public utility to provide adequate service at reasonable rates within the remainder of the service area of the public utility. The secretary of the Public Utilities Commission shall immediately file a certified copy of that report with the executive officer.