Washington State Clean Buildings

Performance Standard

The Clean Buildings Performance Standard consists of ASHRAE Standard 100-2018 and state amendments to ASHRAE Standard 100-2018, WAC194-50. Both documents must be used to understand the full scope of the Standard. This integrated document combines both and provides free of charge access to the full Clean Buildings Performance Standard.


Please fill out the form to access the July 2024 Version, which include Tier 1 and Tier 2 buildings. The file will automatically appear in your downloads folder.


  • Visit the Clean Buildings Performance Standard webpage for additional program information.


  • Visit the Clean Buildings Support and Resources webpage to sign up for and view directories of qualified persons and qualified energy auditors.


Email buildings@commerce.wa.gov if you encounter any issues.

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Commerce has purchased a license for distribution of the integrated ASHRAE Standard 100-2018 with Washington State Amendments, WAC 194-50 (Clean Buildings Performance Standard) for purposes of complying with the Standard in Washington state. The information collected in this form will allow Commerce to provide updates about the Standard to users who have downloaded the document and to understand document usage in the industry. All information collected may be subject to public disclosure, pursuant to Ch. 42.56 RCW.


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