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Designated as an American National Standard, the Uniform Plumbing Code (UPC) is a model code developed by the international Association of Plumbing and Mechanical Officials (IAPMO) to govern the installation and inspection of pluming systems as a means of promoting the public's health, safety, and welfare.

The UPC is developed using the American National Standards Institute's consensus developement procedures. This process brings together volunteers representing a variety of viewpoints and interests to achieve consensus on pluming practices.

The UPC is designed to provide consumers with safe and sanitary plumbing systems while, at the same time, allowing latitude for innovation and new technologies. The public at large is encourage and invited to participate in IAPMO's open consensus code development process. This code is updated every three years. A code development timeline and other relevant information are at IAPMO's website.

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