The Uniform Plumbing Code (UPC) is developed to establish minimum requirements for the health and safety of occupants utilizing a building’s plumbing system. The United States requires the installation of certified plumbing products, including those that bring water into and out the building. These include piping, fixtures and fixture fittings in the building.
Plumbing manufacturers work with testing laboratories like IAPMO R&T Lab, and certification agencies like IAPMO R&T, to make sure the products meet the minimum plumbing code and standard requirements when they are installed in the building.