ONTARIO, CA — IAPMO is accepting formal code change proposals for the 2030 editions of the Uniform Plumbing Code (UPC) and Uniform Mechanical Code (UMC), giving contractors, engineers, inspectors, manufacturers and other industry stakeholders an opportunity to help shape the next generation of model plumbing and mechanical codes.

Proposals recommending new, revised or deleted code language must be submitted in legislative format and include supporting justification.

New Online Portal Streamlines Code Submissions

IAPMO has launched a new online Codes Portal for submitting proposals during the 2030 code development cycle. Users must create an account before submitting recommendations through the portal.

The new IAPMO Codes Portal can be found at codeproposals.iapmo.org.

Instructions on how to submit code changes can be obtained at codes.iapmo.org/docs/IAPMO_Codes_Portal_Tutorial.pdf.

The submission deadline is 5:00 PM PST on Jan. 8, 2027. IAPMO will not accept proposals submitted after the deadline.

Those needing assistance can contact IAPMO directly for technical support throughout the submission period.

Industry Participation Drives Code Development

The UPC and UMC are updated every three years through an American National Standards Institute (ANSI)-accredited voluntary consensus process that brings together plumbing and mechanical professionals from across the industry.

The UPC, first introduced in 1928 and formally published in 1945, establishes requirements for plumbing system installation and inspection to protect public health and safety. The UMC, first published by IAPMO in 1967, provides similar guidance for mechanical systems while supporting evolving technologies and installation practices.

Contractors Help Shape Future Requirements

The 2030 editions will mark the ninth time the Uniform Codes have been developed through IAPMO's ANSI-accredited consensus process and the fifth edition developed under the organization's ANSI Audited Designator status.

Throughout the code cycle, installers, contractors, code officials, engineers, manufacturers and other stakeholders have the opportunity to review, debate and vote on proposed changes during technical committee meetings and IAPMO's Annual Education and Business Conference.

IAPMO encourages all interested industry professionals to participate in the process to help ensure the Uniform Codes continue to support public health, safety, innovation and practical installation requirements for plumbing and mechanical systems.

For questions about submitting proposals for the UPC, please contact Enrique Gonzalez at [email protected]. For the UMC, please contact Taylor Duran at [email protected].