IAPMO
Non-profit OrganizationsCalifornia, United States201-500 Employees
IAPMO is a nonprofit, membership-based association headquartered in Ontario, California, with a 99-year track record of safeguarding public health by coordinating plumbing and mechanical systems worldwide. Through an open consensus process, it develops the Uniform Plumbing Code and Uniform Mechanical Code, drawing on scientific research, debate, and analysis. It provides code development support, education, and a manufacturer-focused quality assurance program that together support safety and compliance in the industry. IAPMO offers testing and certification services through its IAPMO R&T Lab and IAPMO R&T, serving manufacturers, regulators, and building professionals involved in plumbing products. It collaborates with government and industry stakeholders to implement its codes on a global basis. Recent developments include the 2027 editions of the Uniform Plumbing Code and Uniform Mechanical Code, published in June 2026 after an ANSI-accredited consensus process.