How is the term "plumbing" defined according to the code's guidelines?

The term "plumbing," as defined according to the code's guidelines, specifically refers to water supply and drainage systems. This definition encompasses all elements related to the delivery of potable water, the removal of wastewater, and the overall management of water systems within a building.

Understanding this definition is crucial since plumbing is not limited to just the installation of fixtures, as it also includes pipes, fittings, valves, and any related infrastructure that facilitates water flow and waste management. It does not pertain to heating systems or to all construction types, which is a broader and separate category. By grasping this definition, one can better interpret regulations, standards, and practices that ensure safe and efficient plumbing systems.