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Washington
Direct answer and reference scope
Washington is presented here as a reference within the the listed code collection collection for Washington. Use the Washington State Building Code Council to confirm the code edition currently adopted for the project, and compare the model text with state amendments, local amendments, effective dates and the permit authority's interpretation. The ICC code library is the model-code publication path. This Harth page is a searchable reference transcription, not an official code publication, legal opinion or confirmation that this edition controls a particular address. Record the project jurisdiction, application date, occupancy, construction type and amendment set before relying on a section. Where this page conflicts with an official publication or the authority having jurisdiction, the official source controls.
Authored and prepared by Harth. Review scope: official verification path added; code text and current local applicability have not been independently reviewed.
Washington adopts statewide construction codes through the State Building Code Council (SBCC). The 2009 Washington State Building Code was adopted by the Council on November 12, 2009 and took effect July 1, 2010, incorporating editions of the International Codes by reference under Title 51 of the Washington Administrative Code (WAC). The model-code text below is the edition Washington incorporated; the state applies its own amendments on top, and uses the Uniform Plumbing Code and its own State Energy Code rather than the ICC plumbing and energy codes.
- International Building Code
The 2009 International Building Code, incorporated by reference into the Washington State Building Code (WAC 51-50). Establishes minimum requirements for building systems through prescriptive and performance provisions.
- International Fire Code
The 2009 International Fire Code, incorporated by reference into the Washington State Building Code (WAC 51-54A). Governs fire prevention, fire protection systems, and hazardous-materials safety in new and existing buildings.
- International Mechanical Code
The 2009 International Mechanical Code, incorporated by reference into the Washington State Building Code (WAC 51-52). Governs the design and installation of mechanical and HVAC systems.
- International Residential Code
The 2009 International Residential Code, incorporated by reference into the Washington State Building Code (WAC 51-51). Covers the design and construction of one- and two-family dwellings and townhouses.