Residential Code Amendments

2018 Washington State Residential Code

2018 International Residential Code Insert Pages, 2nd Printing (July 14, 2020)
     Errata/Replacement Pages for 1st Printing

  • Includes adoption of Appendices F, Q and U
  • Chapter 11 and Chapters 25 through 43 are not adopted)
  • Effective February 1, 2021

2015 Washington State Residential Code

2015 International Residential Code

  • Includes adoption of Appendices F and Q
  • Chapter 11 and Chapters 25 through 43 are not adopted)
  • Effective July 1, 2016

2015 IRC 2nd Edition with changes effective July 1, 2019

INSERT/REPLACEMENT PAGES:

Changes effective 7/1/19 - Replacement Pages

2012 Washington State Residential Code 

2012 International Residential Code

  • Includes adoption of Appendices F and G
  • Chapter 11 and Chapters 25 through 42 are not adopted
  • Effective July 1, 2013

INSERT/REPLACEMENT PAGES:

2009 and Older Washington State Building Code

  2009 International Residential Code

  • Corrected copy June 23, 2010 with changes to pages 62, 70, 108, 167, 345
  • Includes adoption of Appendices F and G
  • Chapters 11 and 25 through 42 are not adopted
  • Effective July 1, 2010

CO Alarm Rules (IRC) effective April 1, 2012

2006 International Residential Code

  • Includes adoption of Appendices F and G
  • Chapters 11 and 25 through 42 are not adopted
  • Effective April 1, 2008

 2003 International Residential Code

  • Chapters 11 and 25 through 42 are not adopted
  • Effective July 1, 2004