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Ground-level Ozone Pollution

2008 Ozone National Ambient Air Quality Standards (NAAQS) Nonattainment Action Documents

This page contains the fact sheets for regulations dealing with the nonattainment actions of the 2008 ozone national ambient air quality standards (NAAQS).

For the Determinations of Attainment by the Attainment Date, Extensions of the Attainment Date, And Reclassification of Several Areas for Marginal nonattainment areas under the 2008 ozone NAAQS, the proposed and final rule are available here:

For the Implementation of the 2008 National Ambient Air Quality Standards (NAAQS) for Ozone: State Implementation Plan (SIP) Requirements rule, this page also contains presentation slides on the final rule , and the Response to the Comments from the Proposed Rule.

For the Air Quality Designations for the 2008 Ozone National Ambient Air Quality Standards rule, this page also contains the D.C. Circuit Court decision in NRDC v. EPA that vacated portions of this final rule involving attainment deadlines and revoking the 1997 NAAQS for purposes of transportation conformity.

To learn more about the implementation rule, visit the 2008 Ozone NAAQS Implementation Rule page.

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