1 Clean Air Update Ozone Rules (signed April 15, 2004) 8-hour ozone designations Final 8-hour Implementation Rule - Phase 1 Transition from the 1-hour.
How Ozone is Regulated under the Clean Air Act Darcy J. Anderson AZ Dept. of Environmental Quality.
Impact of Recent EPA Actions on New England’s Air Quality Michael Kenyon Air Programs Branch Chief – EPA New England April 5, 2005.
