***THE CITY OF KENNEWICK IS CURRENTLY UTILIZING THE FOLLOWING WASHINGTON STATE AMENDED BUILDING CODES: 2018 INTERNATIONAL BUILDING CODE, INTERNATIONAL RESIDENTIAL CODE, INTERNATIONAL MECHANICAL CODE, INTERNATIONAL FUEL GAS CODE, INTERNATIONAL EXISTING BUILDING CODE, WASHINGTON STATE ENERGY CODE, UNIFORM PLUMBING CODE, 1996 UNIFORM HOUSING CODE.
Effective March 15, 2024 the 2021 State Amended Building Codes will take effect.