Section 99.370 - Regional authority - commissioners - terms - additional commissioner appointed, when and how1. If a regional authority is created as herein provided, one person shall be appointed as a commissioner of such authority for each community for which such authority is created.2. When the area of operation of a regional authority is increased to include an additional community or communities as herein provided, one additional person shall be appointed as a commissioner of such authority for each such additional community.3. Each such commissioner appointed for a municipality shall be appointed by the mayor thereof, and each such commissioner appointed for a county shall be appointed by the governing body thereof. The first appointment of commissioners of a regional authority may be made at or after the time of the adoption of the resolution declaring the need for such authority or declaring the need for the inclusion of such community in the area of operation of such authority. The commissioners of a regional authority and their successors shall be appointed as aforesaid for terms of four years except that all vacancies shall be filled for the unexpired terms.4. If the area of operation of a regional authority consists at any time of an even number of communities, the commissioners of the regional authority already appointed in the manner described above shall appoint one additional commissioner whose term of office shall be as provided for a commissioner of a regional authority except that such term shall end at any earlier time that the area of operation of the regional authority shall be changed to consist of an odd number of communities. The commissioners of such authority already appointed in the manner described above shall likewise appoint each person to succeed such additional commissioner; provided that the term of office of such person begins during the terms of office of the commissioners appointing him.5. A certificate of the appointment of any such additional commissioners of such regional authority shall be filed with the other records of the regional authority and shall be conclusive evidence of the due and proper appointment of such additional commissioner.