(1) The provisions of this subchapter shall apply to any municipal improvement district in the State of Arkansas which has been created, either by special act of the General Assembly or under the general laws of the state, for the purpose of repairing, enlarging, overhauling, erecting, and equipping any electric power plant, waterworks system, or sewer system which may have been constructed by a previously existing district within the municipality.
(2) No part of this subchapter shall apply to a municipal plant operated solely by city commissioners without a majority vote of the commissioners.