All rules, regulations, and ordinances regulating the design and installation of plumbing systems including the plumbing fixtures in all types of buildings except for detached one and two-family dwellings and townhouses that are not more than three stories above grade in height. The regulations for plumbing systems in one- and two-family dwellings and townhouses are covered by IRC. The ISPC addresses general plumbing regulations, fixture requirements, water heater installations and systems for water distribution, sanitary drainage, special wastes, venting, storm drainage and medical gases. The ISPC does not address fuel gas piping systems as those systems are covered by the IFGC. The ISPC also does not regulate swimming pool piping systems, process piping systems, or utility-owned piping and systems. (Ord. 2020-638, 12-9-2020)