Cal. Government Code § 56127

If the legislative body of any of the districts, agencies, or authorities enumerated in subdivision (a) of Section 56036.6 desires a determination by the commission that the district, agency, or authority is not a district or a special district, for purposes of Part 4 (commencing with Section 57000) or Part 5 (commencing with Section 57300), the legislative body, prior to the adoption of any ordinance, resolution, or order proposing, declaring an intention, or initiating proceedings to make a change of organization, shall make application to the commission of the principal county describing the proposed change of organization and requesting that determination. If a proposal is initiated by other than the legislative body of a district or special district, the district or special district may, within 10 days of notification by the commission of the initiation of the proposal, request a determination by the commission that it is not a district or special district for purposes of Part 4 (commencing with Section 57000) or Part 5 (commencing with Section 57300). That application shall be filed with the executive officer and shall be presented to the commission not later than its next regular meeting. The executive officer shall give the legislative body filing the application mailed notice of the time and place at which the application shall be presented to the commission. No other notice is required to be given. However, the commission may, prior to making its findings and determinations, order the executive officer to give notice of the filing and presentation of the application by publication or by mailing to other affected counties, cities, and districts, or by both publication and mailing.