The Uniform Plumbing Code (UPC) reflects IAPMO’s experience and dedicated focus on plumbing systems and water efficiency.

The Plumbing Code, 2024 (UPC 2024) is a code produced by the International Association of Plumbing and Mechanical Officials (IAPMO). This document provides the foundation for many …

The 2024 edition of the Uniform Plumbing Code (UPC®) represents the most current approaches in the plumbing field. It is the eighth edition developed under the ANSI Consensus process is …

The provisions of this code shall apply to the erection, installation, alteration, repair, relocation, replacement, addition to, use, or maintenance of plumbing systems within this jurisdiction.

The product of this effort, the first edition of the Uniform Plumbing Code (UPC) was officially adopted by the Western Plumbing Officials Association in 1945, which later changed its name …

The Uniform Plumbing Code (UPC) and Uniform Mechanical Code (UMC) from the International Association of Plumbing and Mechanical Officials (IAPMO) are on the record as the codes that …

Introduced in Los Angeles in 1928 and formally published as the Uniform Plumbing Code in 1945, the UPC is developed to govern the installation and inspection of plumbing systems as a …

May 1, 2023 · Introduced in Los Angeles in 1928 and formally published as the Uniform Plumbing Code in 1945, the UPC is developed to govern the installation and inspection of plumbing …

Dec 13, 2025 · The Uniform Plumbing Code (UPC) is a prescriptive model plumbing code predominantly used in the Western United States. Published by IAPMO, the UPC provides …

This information is updated regularly due to changes in the plumbing code enforcement that may be conducted by either the state, county or local unit of government.