Washington Building Codes and Contacts

The following information is reprinted with permission from the Building Codes Assistance Project:
Washington climate zones
Current Commercial Code

2012 Washington State Energy Code (WSEC)
Based on ASHRAE 90.1-2010 and the 2012 IECC
Passed 2/1/2013, effective 7/1/2013

Current Residential Code

2012 Washington State Energy Code (WSEC)
Based on 2012 IECC with state-specific amendments
Passed 2/1/2013, effective 7/1/2013

Code Enforcement

The State Building Code Act (Chapter 19.27 RCW) requires that each local jurisdiction enforce the State Building Code within its jurisdiction. Any jurisdiction can contract with another jurisdiction or an inspection agency to provide the mandated enforcement activities.

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Climate Zones: 4C, 5B, 6B

Code Adoption and Change Process

Code Change Process

Regulatory Process: The Washington State Building Code Council (SBCC) reviews and amends the state energy code for residential and nonresidential buildings respectively. Within 60 days of receipt of a proposed change, the SBCC decides if the proposal warrants further consideration. If the SBCC accepts the change, rulemaking begins and the change is sent to a Technical Advisory Group (TAG) for review. The TAG members have varying expertise in the construction industry related to the proposed change. After completing the review, the TAG submits its recommendations back to the SBCC. The SBCC then makes the final determination on acceptance. Once final approval is granted by the SBCC, the rule is filed with the Washington State Code Reviser and then published in the Washington State Register. The final rule becomes effective after the next legislative session.

Code Change Cycle

Three year code review/change process

Next Code Update

The 2015 WSEC, based on the 2015 IECC, will go into effect on July 1, 2016. See WSR 16-02-127 for more information.

2015 Washington State Energy Code, Residential Provisions

Washington Code Contacts

Krista Braaksma
Codes Specialist
State Building Code Council
Email: krista.braaksma@des.wa.gov

Steven Simpson
Council Chair
State Building Code Council
Email: ssimpson@seattlepipetrades.org

Chuck Murray
Senior Energy Policy Analyst
Department of Commerce
Email: chuck.murray@commerce.wa.gov

Gary Nordeen
Senior Building Science Specialist
Washington State University
Energy Program

Email: nordeeng@energy.wsu.edu

Ken Baker
Senior Manager, Codes
Northwest Energy Efficiency Alliance
Email: kbaker1@mindspring.com

This information was compiled by the Building Codes Assistance Project, and used with their permission.