The building codes of Washington adopt the the 2018 Washington State Building Code, 2018 Washington State Residential Code, 2018 Washington State Existing Building Code, 2018 Washington State Fire Code, 2018 Washington State Mechanical Code, International Fuel Gas Code 2018 (IFGC 2018), 2018 Washington State Energy Code - Commercial Provisions, 2018 Washington State Energy Code - Residential Provisions, 2018 Washington State Wildland-Urban Interface Code, International Swimming Pool and Spa Code 2018 (ISPSC 2018), Accessible and Usable Buildings and Facilities, 2009, Standard for the Installation of Sprinkler Systems, 2016, National Electrical Code, 2020, National Fire Alarm and Signaling Code, 2016, 2018 Uniform Plumbing Code, Safety Code for Elevators and Escalators, 2016, and the Building Code Requirements for Structural Concrete 2014.
Washington State Building Code Council
1500 Jefferson Avenue SE
Post Office Box 41449
Olympia, Washington 98504-1449