Overview of the IPC

The International Plumbing Code (IPC) is a proven, comprehensive model plumbing code that works seamlessly with ICC's family of building codes. It sets minimum regulations for plumbing systems and components to protect life, health and safety of building occupants and the public. The IPC is available for adoption by jurisdictions ranging from states to towns, and is currently adopted on the state or local level in 35 states in the U.S, the District of Columbia, Guam, and Puerto Rico.

The IPC is built on the proven legacy of the BOCA National Plumbing Code, SBCCI Standard Plumbing Code, and ICBO Plumbing Code.

The IPC sets minimum regulations for plumbing systems using both prescriptive and performance-related provisions covering topics such as:

  • Backflow prevention
  • Fixtures & fittings
  • Water supply and distribution piping
  • Water heaters
  • Sanitary drainage and venting
  • Traps, grease interceptors & separators
  • Storm drainage
  • Nonpotable water systems (rainwater, gray water, reclaimed water)

Today's IPC is known for:

  • Safety – It has a proven track record providing safe and sanitary plumbing installations.
  • Ease of Use – The IPC uses the same easy-to-use format provided in all I-Codes
  • Embrace of New Technology - The IPC and its predecessors have a tradition of innovation while protecting the health and safety of the public.
  • Correlation – The IPC is specifically correlated to work with ICC's family of codes.
  • Open and Honest Code Development Process - The IPC is revised on a three year cycle through ICC's highly-respected consensus code development process that draws upon the expertise of hundreds of plumbing, building and safety experts from across North America.

Code Development

Current Version: 2018 IPC

The 2018 IPC is not available for purchase and adoption along with the family of correlated 2015 family of I-Codes (except the 2018 IgCC).

Upcoming Version: 2021 IPC Development

Development of the 2021 International Plumbing Code will take place as part of the Group A Codes in the calendar year 2020. Applications for the 2021 Code Committees have been collected and are being processed. Appointments to the 2020 Code Committees are anticipated in the Fall of 2020. Code change proposals for Group A Codes (which includes the IPC) will be accepted in November, 2020, and will be due January 2021 (see the code development schedule for details). All proposals must be submitted using cdpACCESS.

  • Click here for the 2021 Code Development Schedule
  • Click here for cdpACCESS. Learn more about ICC's new web-based code development process called cdpACCESS.



Adoptions of the IPC

IPC-MapCurrently, 35 states plus Washington DC, Puerto Rico, and Guam adopt the 2015, 2012, 2009, 2006, or 2003 versions of the International Plumbing Code (IPC) at the state or local level. Click on the links below for more detailed information.

As a model code, the IPC is intended to be adopted in accordance with the laws and procedures of a governmental jurisdiction. When adopting a model code like the IPC, some jurisdictions amend the code in the process to reflect local practices and laws. Click here for additional code adoption resources and for sample adoption ordinances.

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