(a) Except as provided in subsection (b) hereof, the provisions of OAC Chapter 4101:2-51 and this chapter shall govern the installation, alteration, removal, replacement, and repair of all drainage systems, plumbing systems, water supply systems, and gas piping, and of all parts thereof in all buildings including non-industrialized single-family, two (2) family and three (3) family dwelling houses.
(b) The provisions of this chapter shall not apply to gas service mains from the street main to the meter, nor to the installation of gas meters by the utility organization supplying gas; nor to gas piping installations of the utility organization made on their own or public premises and part of the general gas supply and distribution system for the City of Cleveland and surrounding communities; nor to the installation of sewers or water mains by City authorities having jurisdiction over public sewers and public water distribution systems.