2021 Washington State Mechanical Code
2021 International Mechanical Code Insert Pages 2nd Printing, Posted March 1, 2024
2021 International Mechanical Code Insert Pages 1st printing
- Includes adoption of 2021 International Fuel Gas Code, 2021 NFPA 58 & 2020 NFPA 54
- Effective March 15, 2024
2018 Washington State Mechanical Code
2018 International Mechanical Code Insert Pages, 2nd printing
- Includes adoption of 2018 International Fuel Gas Code, 2018 NFPA 58 & 2017 NFPA 54
- Effective February 1, 2021
2015 Washington State Mechanical Code
2015 International Mechanical Code Insert Pages
- Includes adoption of 2015 International Fuel Gas Code, 2014 NFPA 58 &2014 NFPA 54
- Effective July 1, 2016 (with updates effective Oct. 1, 2017)
2012 Washington State Mechanical Code
2012 International Mechanical Code Insert Pages
- Includes adoption of 2012 International Fuel Gas Code, 2011 NFPA 58 & 2012 NFPA 54
- Effective July 1, 2013
2009 and Older Washington State Building Code
2009 International Mechanical Code Insert Pages
- Includes adoption of 2009 International Fuel Gas Code, 2008 NFPA 58 & 2009 NFPA 54
- Effective July 1, 2010
2006 International Mechanical Code Insert Pages
- Includes adoption of 2004 NFPA 58 & 2006 NFPA 54
- Effective July 1, 2007
2003 International Mechanical Code Insert Pages
- Includes adoption of 2001 NFPA 58 & 2002 NFPA 54
- Effective July 1, 2004