Code No. Code Name
UPC Uniform Plumbing Code
UMC Uniform Mechanical Code
USPSHTC Uniform Swimming Pool, Spa & Hot Tub Code
USEHC Uniform Solar Energy & Hydronics Code
2010 CPC 2010 California Plumbing Code
2013 CPC 2013 California Plumbing Code
2016 CPC 2016 California Plumbing Code
2010 CMC 2010 California Mechanical Code
2013 CMC 2013 California Mechanical Code
2016 CMC 2016 California Mechanical Code
2011 OPSC 2011 Oregon Plumbing Specialty Code
2014 OPSC 2014 Oregon Plumbing Specialty Code
2009 IDAHO Idaho State Plumbing Code
Recently Posted

The following proposed Tentative Interim Amendment will be heard by the IAPMO Standards Council on Thursday, March 9, 2017 at 8:30 am (Pacific Time): UPC 001-15 and UMC TIA 004-15 Interested parties wishing to participate in the hearing should contact the Council Secretary, Ms. Gaby Davis, in advance of the call in accordance with Section 1-6.2 of the IAPMO Regulations Governing Committee Projects.

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2016 UMC Report on Proposals

2016 UPC Report on Proposals

2016 UPC ROP Errata

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Code Development

With its Uniform Plumbing Code, Uniform Mechanical Code, Uniform Solar Energy Code and Uniform Swimming Pool, Spa and Hot Tub Code designated as American National Standards, IAPMO is proud to utilize an open consensus process accredited by the American National Standards Institute (ANSI) in its code development practice.

IAPMO gathers the largest assembly of plumbing and mechanical experts in the world at its annual education and business conference, where anyone — members and non-members alike — can have a voice and a vote on proposed changes to the code.

The purpose of the IAPMO code development process is to ensure the continued development and maintenance of the Uniform Codes with the following goals in the forefront:

  • Effectiveness in preserving the public health, safety, and welfare.
  • The timely evaluation and recognition of technological developments pertaining to construction regulations.
  • A consensus process, which provides for the open discussion of proposals by all parties who wish to participate.

IAPMO urges its members and other interested parties to get involved in the code development process to ensure that these goals are maintained. Installers, plumbing and mechanical officials, the construction industry, engineers, and manufacturers all benefit from a cooperative effort in developing codes.