The City of Westminster is in the process of adopting the 2021 International Codes (I-Codes), as listed below. The Building Division and Fire Department will present a proposal to City Council for adoption in early 2024, with an opportunity for public feedback in November 2023 (see more details below). For more information on these codes, please visit the ICC webpage. Copies of the books can also be purchased from the ICC store.

The applicable codes are:

  • ANSI A117.1 - 2009
  • International Residential Code - 2015 Edition
  • International Building Code - 2015 Edition 
  • International Plumbing Code - 2015 Edition
  • International Mechanical Code - 2015 Edition
  • International Fuel Gas Code - 2015 Edition  
  • National Electrical Code – 2023 Edition – effective August 1, 2023
  • International Fire Code - 2015 Edition
  • International Energy Conservation Code - 2015 Edition
  • International Existing Building Code - 2015 Edition
  • International Swimming Pool and Spa Code - 2015 Edition
  • Design Criteria For Structures

International Residential Code - 2021 Edition

International Building Code - 2021 Edition

International Plumbing Code - 2021 Edition

International Mechanical Code - 2021 Edition

International Fuel Gas Code - 2021 Edition

National Electrical Code – 2023 Edition – effective August 1, 2023

International Fire Code - 2021 Edition

International Energy Conservation Code - 2021 Edition

International Existing Building Code - 2021 Edition

International Swimming Pool and Spa Code - 2021 Edition

Amendments and links to PDFs

In order to best serve our community, the City of Westminster amends the international codes. The current and proposed amendments are:

Proposed Amendments

Current Amendments

Community Feedback

Please use this link to leave any feedback you may have regarding the code amendments and adoption.