The consolidation commission shall be discharged:
a. On the date of the filing of its final report and recommendations, if such report recommends against the consolidation of the participating municipalities;
b. On the date of the certification of the results of the referendum, if such certification establishes that the consolidation recommended by the commission has not been approved by the voters of each of the participating municipalities; or,
c. If the plan of consolidation is approved by the voters of the participating municipalities, on the one hundredth and eighty-first day following the date of consolidation, or on such date as the governing body of the consolidated municipality shall adopt permanent ordinances, rules and regulations for the consolidated municipality, whichever shall occur sooner, during which interval the commission shall serve as an advisory body to the governing body of the consolidated municipality.