Washington Building Codes
adopts the IBC 2015 with amendments Residential Code 2015 of Washington
adopts the IRC 2015 with amendments Existing Building Code 2015 of Washington
adopts the IEBC 2015 with amendments Mechanical Code 2015 of Washington
adopts the IMC 2015 with amendments Fire Code 2015 of Washington
adopts the IFC 2015 with amendments Fuel Gas Code 2015 of Washington
adopts the IFGC 2015 with amendments Energy Conservation Code 2015 of Washington
adopts the IECC 2015 with amendments Swimming Pool and Spa Code 2015 of Washington
adopts the ISPSC 2015 without amendments WAC 51-54A-8200 Appendix N: Wildland Urban Interface Code
adopts the IWUIC 2015 with amendments 2015 Uniform Plumbing Code
Recently Enacted Rules
Last Updated to include the rules that took effect on July 1, 2018.
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Washington Building Codes
The building codes of Washington adopt the the International Building Code 2015 (IBC 2015), International Residential Code 2015 (IRC 2015), International Existing Building Code 2015 (IEBC 2015), International Mechanical Code 2015 (IMC 2015), International Fire Code 2015 (IFC 2015), International Fuel Gas Code 2015 (IFGC 2015), International Energy Conservation Code 2015 (IECC 2015), International Swimming Pool and Spa Code 2015 (ISPSC 2015), International Wildland-Urban Interface Code 2015 (IWUIC 2015), and the 2015 Uniform Plumbing Code. These codes include amendments enacted at the state level.
Amendments
States and cities enact critical amendments to the base codes. Washington has made amendment to the codes. UpCodes provides the only source to view these amendments integrated into the model codes. Learn about amendments