Critical details and technical tips for meeting new energy code standards - NW Energy Star
The ventilation code is no longer included in the WA State Energy Code. It is now in the Washington Administrative Code amendments of the 2009 International Residential Code and the 2009 International Mechanical Code.
2009 IRC WAC for residential
2009 IMC WAC for commercial
Certified third party testing is not required to comply with Washington State Energy Code, however it is required by Performance Tested Comfort Systems for utility repair incentives.
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