Program Template photo identifier

Rule Making

Chapter 173-401 WAC
Air Operating Permit  (AOP) Rule

Timeline of Rulemaking

Ecology is conducted rulemaking on the Operating Permit Rule. To learn more about this rulemaking, see:

Timeline of Activities

(TBD = To Be Determined)
Date Action
April 22, 2014 Announce rulemaking (file CR-101 form)
April 22, 2014 Develop and prepare the rule language
July 2014 to
November 2014
Hold advisory committee meetings
August 4, 2015 Start public comment period with rule text and supporting documents (file CR-102 form)
September 10, 2015 Hold public hearing(s)
September 18, 2015 End public comment period
September to
December 2015
Review public comments and prepare the adoption package
February 3, 2016 Adopt, file, and publish rule (file CR-103 form)
March 5, 2016 Rule effective 31 days after it has been filed



Margo Thompson
(360) 407-6827

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Washington Clean Air Act
Air Quality Rules