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Seattle Implementation of 2018 Codes Is March 15, 2021

Posted on Dec 18, 2020 in:
  • Building Codes
  • Advocacy
  • Industry Issues
  • SBC

The 2018 editions of the State Building and Energy codes become effective on Feb. 1, 2021. Seattle is the exception, with an implementation date of March 15, 2021. Please keep this date in mind if you wish to submit permit applications and vest to the current code. If you submit on or after Feb. 1, you must meet the requirements of the new codes.

BIAW is hosting the following online sessions with more on the code changes:

WSU’s Energy Program has also made information available to help you understand and implement the new energy code:

For more information, please contact


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