Washington Building Codes

Codes

Adoption Info

INCORPORATED AMENDMENTS

2018 Construction Codes

Propose Rule Making
CR-102 (December 2017)
(Implements RCW 34.05.320)
Prohibition on gas fireplaces
WAC 51-11R-40310
effective February 2, 2022
Original document
Rule-making Order
Emergency Rule Only
CR-103E (December 2017)
(Implements RCW 34.05.350 and 34.05.360)
WAC 51-50-3500 & WAC 51-54A-8000 Elevator Pit Sprinklers Standards
adopted October 21, 2021
Original document
Rule-making Order
Emergency Rule Only
CR-103E (December 2017)
(Implements RCW 34.05.350 and 34.05.360)
WAC 51-11R Heat Pump Exemption
effective October 21, 2021
Original document
Rule-making Order
Emergency Rule Only
CR-103E (December 2017)
(Implements RCW 34.05.350 and 34.05.360)
WAC 51-54A-8200
Rescind Wildland Urban Interface Amendments from
2018 International Fire Code
effective October 21, 2021
Original document
Rule-making Order
Emergency Rule Only
CR-103E (December 2017)
(Implements RCW 34.05.350 and 34.05.360)
WAC 51-11R-40310 Fireplace Pilots
effective October 20, 2021
Original document
Rule-making Order
Emergency Rule Only
CR-103E (December 2017)
(Implements RCW 34.05.350 and 34.05.360)
WAC 51-50-3002.4 Elevator to Accommodate Ambulance Stretcher
adopted October 15, 2021
Original document
Rule-making Order
Permanent Rule Only
CR-103P (December 2017)
(Implements RCW 34.05.360)
2018 IBC Tsunami Loads
adopted May 21, 2021
Original document
Rule-making Order
Permanent Rule Only
CR-103P (December 2017)
(Implements RCW 34.05.360)
2018 IBC/IRC Adult Home 8 Bed
adopted May 21, 2021
Original document
Rule-making Order
Permanent Rule Only
CR-103P (December 2017)
(Implements RCW 34.05.360)
2018 IFC Mobile On-Demand Fueling
adopted May 21, 2021
Original document
Chapter 51-51 WAC
2018 International Residential Code
First Edition
effective February 1, 2021
Original document
Chapter 51-56 WAC
State Building Code Adoption and
Amendment of the 2018 Edition of the Uniform Plumbing Code
Effective February 1, 2021
Original document
Rule-making Order
Permanent Rule Only
CR-103P (December 2017)
(Implements RCW 34.05.360)
2018 Uniform Plumbing Code
effective February 1, 2021
Original document
Expedited Rule Making
CR-105 (December 2017)
(Implements RCW 34.05.353)
2018 Washington State Energy Code, Commercial
WAC 51-11C
effective November 17, 2020
Original document
Washington State Energy Code - Commercial 2018 Edition
Chapter 51-11C WAC
effective November 1, 2020
Original document
Expedited Rule Making CR-105 (December 2017)
(Implements RCW 34.05.353)
2018 International Residential Code
effective July 29, 2020
Original document
2018 Washington State Building Code
Second Version - January 2021
effective July 1, 2020
Chapter 51-50 WAC
International Building Code 2018 Edition
effective July 1, 2020
Original document
2018 Washington State Existing Building Code
First Version - March 2020
effective July 1, 2020
International Fire Code
Chapter 51-54A WAC
effective July 1, 2020
Original document
International Mechanical Code
Chapter 51-52 WAC
Includes adoption of and amendments to the
2018 International Fuel Gas Code and
adoption of the 2018 National Fuel Gas Code (NFPA 54)
and the 2017 Liquefied Petroleum Gas Code (NFPA 58)
effective July 1, 2020
Original document
Washington State Energy Code - Residential 2018 Edition
Chapter 51-11R WAC
effective July 1, 2020
Original document
2018 Washington State Wildland-Urban Interface Code
effective July 1, 2020
WAC 296-96-00675
Amendments to Adopted Standards
effective October 1, 2018
Original document

2015 Construction Codes

Chapter 51-11C WAC
State Building Code Adoption and Amendment of
the 2015 Edition of the
International Energy Conservation Code,
Commercial Provisions
effective July 1, 2019
Original document
Chapter 51-50 WAC
International Building Code 2015 Edition
Includes Adoption of and Amendments to the
2015 International Existing Building Code and
ICC/ANSI A117.1-2009
effective July 1, 2016
Original document
Chapter 51-51 WAC
International Residential Code 2015 Edition
effective July 1, 2016
Original document
Chapter 51-54A 2015 Edition (Third Edition)
Washington State Amendments to the
2015 International Fire Code
effective July 1, 2016
Original document
Chapter 51-52
2015 Edition International Mechanical Code
Includes adoption of and amendments to the
2015 International Fuel Gas Code and adoption of the
2015 National Fuel Gas Code (NFPA 54) and the
2014 Liquefied Petroleum Gas Code (NFPA 58)
effective July 1, 2016
Original document


NOTICE
The 2018 Washington State Building Code includes adoption of the 2018 International Existing Building Code and ICC/ANSI A117.1-2009.

The 2018 Washington State Mechanical Code includes adoption of 2018 International Fuel Gas Code, 2018 NFPA 58 & 2017 NFPA 54.

FURTHER INFORMATION

Washington Building Codes

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, Uniform Plumbing Code 2018, Safety Code for Elevators and Escalators, 2016, and the Building Code Requirements for Structural Concrete 2014.

Washington building codes, including the fire and residential codes

Washington Agencies

Washington State Building Code Council
Website: https://sbcc.wa.gov
Address: 1500 Jefferson Avenue SE, Washington
P.O. Box: 41449 Olympia, Washington 98504-1449
Email: SBCC@des.wa.gov
Phone: 360-407-9255

Washington State Patrol
State Fire Marshal's Office
Website: https://www.wsp.wa.gov/state-fire-marshals-office/
Address: Helen Sommers Building, 106 11th Ave. SW, Olympia, WA 98501
Email: firemarsh@wsp.wa.gov
Phone: (360) 596-3900