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| Code Type: | Commercial | Residential |
|---|---|---|
| Current State Code | 2021 Washington State Energy Code | 2021 Washington State Energy Code |
| Effective Date | ||
| Adoption Date | ||
| State Amendments | No | No |
| Can use COM/REScheck |
| Previous Model Code | Submitted |
|---|---|
| ASHRAE Standard 90.1-2010 | Yes |
| ASHRAE Standard 90.1-2007 | No |
| Previous Model Code | Submitted |
|---|---|
| 2012 IECC | Yes |
| 2009 IECC | No |
