California Code, Government Code - GOV § 56100

(a) Except as otherwise provided in Section 56036.5andsubdivision (b) of Section 56036.6, this division provides the sole and exclusive authority and procedure for the initiation, conduct, and completion of changes of organization and reorganization for cities and districts.  All changes of organization and reorganizations shall be initiated, conducted, and completed in accordance with, and as provided in, this division.

(b) Notwithstanding any other law, proceedings for the formation of a district shall be conducted as authorized by the principal act of the district proposed to be formed, except that the commission shall serve as the conducting authority and the procedural requirements of this division shall apply and shall prevail in the event of conflict with the procedural requirements of the principal act of the district.  In the event of such a conflict, the commission shall specify the procedural requirements that apply, consistent with the requirements of this section.