What type of code governs the requirements for plumbing installations?

The Uniform Plumbing Code, often referred to as UPC, specifically addresses the requirements for plumbing installations. This code establishes the minimum standards necessary for the design, construction, installation, maintenance, and inspection of plumbing systems. It ensures that plumbing systems are safe, functional, and environmentally responsible, addressing aspects such as waste disposal, water supply, and sanitation.

While other codes, such as the International Building Code and the National Electric Code, cover different areas of construction and safety—such as general building requirements and electrical installations, respectively—they do not specifically govern plumbing. The Residential Energy Code focuses on energy efficiency standards for residential buildings and doesn't address plumbing requirements. Therefore, the Uniform Plumbing Code is the correct choice when looking for the specific regulations governing plumbing installations.