Sec. 3. A sewage disposal company that is subject to the jurisdiction of the Indiana utility regulatory commission under IC 8-1-2-89, and all of the territory lying in the area to which the company holds a certificate of territorial authority, is exempt from all ordinances and rules adopted by the board, except those ordinances and rules pertaining to maintenance and operation, until:
(1) the connection is made to the sewerage system of the district; and
(2) the district begins to provide service within the area covered by the certificate of territorial authority.