(3)__When an original or supplementary petition has been certified insufficient under paragraph D, the committee, within 2 days after receiving the copy of the clerk's certificate, may file a request with the municipal service district officers for review.__The municipal service district officers shall inspect the petitions in substantially the same form, manner and time as a recount hearing under section 2531-A and shall make due certificate of that inspection. The municipal service district officers shall file a copy of that certificate with the clerk and mail a copy to the committee. The certificate of the municipal service district officers is a final determination of the sufficiency of the petitions.

(4)__Any petition finally determined to be insufficient is void. The clerk shall stamp the petition void and seal and retain it in the manner required for secret ballots.

4. Election procedure.__Within 30 days after the adoption of an order under subsection 1 or the receipt of a certificate or final determination of sufficiency under subsection 3, the clerk of the municipal service district shall promptly notify the municipal officers of each participating municipality, who shall by order submit the question for the establishment of a charter commission pursuant to this section to the voters at the next regular or special municipal election held at least 90 days after the order.

5.__Ballot question.__The question for the establishment of a charter commission pursuant to this section to be submitted to the voters in each participating municipality must be in substance as follows:

"Shall a charter commission be established for the purpose of revising the municipal service district charter of (name of municipal service district), in which (name of municipality) is a participating municipality?"

6.__Adoption by majority vote.__Upon approval of a majority of those voting in the municipal service district, the charter revision commission is established.

7.__Charter commission operation.__The charter commission shall conduct itself in accordance with section 2103, subsections 2, 3, 5 and 8.