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Regulatory Actions
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This page contains a chronological listing of all regulatory actions related to designations for the 2008 ozone standards.
Implementing the 2008 National Ambient Air Quality Standards for Ozone: Proposed Nonattainment Area Classifications Approach and Attainment Deadlines
February 7, 2012 - This action proposes a range of ozone levels for each ozone nonattainment area classification as well as the date by which these areas would be required to meet the standards.
- Proposed Rule (PDF) (40pp, 220k)
- Fact Sheet (PDF) (4pp, 34k)
Revised EPA Responses
January 31, 2012 - Based on updated ozone air quality data submitted by the state of Illinois, EPA revises its responses to recommendations from Illinois, Indiana, and Wisconsin on area designations for the 2008 ozone air quality standards.
- Read Correspondence Between these States and EPA
- Updated Map of Preliminary Nonattainment Areas for 2008 Ozone Standards
- Updated Table showing comparison of State recommendations and EPA responses (PDF) (7pp, 98k)
Recommendations for Areas to be Designated “Nonattainment” for the 2008 National Air Quality Standards for Ozone
December 9, 2011 – In response to recommendations from state and local tribal representatives, EPA has sent letters outlining the areas it is considering designating as “attainment” or “nonattainment” for the 2008 ozone standards.
- Read Correspondence Between EPA and State and Tribal Representatives
- Overview Q and A
- Map of Preliminary Nonattainment Areas for 2008 Ozone Standards
- Table showing comparison of State recommendations and EPA responses (PDF) (6pp, 93k)
- Notice of Public Comment Period (PDF) (3pp, 159KB) - Federal Register - December 20, 2011
- Notice of Extension of Public Comment Period (PDF) (3pp, 169k) - Federal Register - January 19, 2012