The following is a list of the most recent Arizona Natural and Exceptional Events Demonstration Documents submitted to EPA :

• July 7, 2017 Wildfire-Caused Ozone | View >

• June 20, 2015 Wildfire-Caused Ozone | Original > | 2018 Addendum > | 2019 Addendum >

You can make a records request to view all past Arizona Natural and Exceptional Events Demonstration Documents | Learn How >