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Ventilation Code

 (VIAQ Code is now superseded by requirements in the International Mechanical Code and International Residential Code)

2006 Washington State Ventilation & Indoor Air Quality Code 

  • (Effective July 1, 2007)
  • Note: This code will be repealed as of July 1, 2010. The requirements formerly found in this WAC are now incorporated into the IMC and IRC

2003 Washington State Ventilation & Indoor Air Quality Code (Effective July 1, 2004)