This presentation is meant to help state and local air agencies understand how new requirements apply to them, and how to implement.
Purposes of the rulemaking:
- Provide state and local air management agencies with final rules and guidance for planning to meet the 2008 ozone NAAQS in designated nonattainment areas.
- Translate ozone implementation requirements contained in the 1990 Clean Air Act Amendments (written when ozone was a 1-hour standard) into meaningful requirements for the 2008 8-hour ozone NAAQS.
- Revoke the 1997 8-hour ozone NAAQS in order to provide additional flexibility to areas still working to complete the control requirements of that NAAQS. New rules will be found in Subpart AA of 40 CFR sections 51.1100 through 51.1119.
- Essentially replaces Subpart X, 40 CFR sections 51.900 through 51.918