Implementation of the 2015 National Ambient Air Quality Standards (NAAQS) for Ozone: State Implementation Plan (SIP) Requirements
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Rule Summary
The U.S. Environmental Protection Agency (EPA) is establishing a final rule for implementing the revised 2015 ozone NAAQS (the ‘‘2015 ozone NAAQS’’) that were promulgated on October 1, 2015. This rule addresses a range of nonattainment area state implementation plan (SIP) requirements for the 2015 ozone NAAQS.
Rule History
11/07/2018 - Final Nonattainment Area State Implementation Plan Requirements (pdf) (448 KB)
03/01/2018 - Final Nonattainment Area Classifications Approach (pdf) (242 KB)
11/17/2016 - Proposed Nonattainment Area Classifications and SIP Requirements Rule (pdf) (451 KB)
Additional Resources
Fact Sheet and Webinar Information: Final Nonattainment Area State Implementation Plan Requirements
Fact Sheet: Final Nonattainment Area Classifications Approach
Fact Sheet and Webinar Information: Proposed Requirements for Implementing the 2015 Ozone Standards
Implementation of the Ozone National Ambient Air Quality Standard (NAAQS) Memorandum
Related Rules
2015 National Ambient Air Quality Standards (NAAQS) for Ozone
2008 National Ambient Air Quality Standards (NAAQS) for Ozone
2008 Ozone National Ambient Air Quality Standards (NAAQS) Nonattainment Actions
1997 National Ambient Air Quality Standards (NAAQS) for Ozone (revoked) (pdf) (421 KB)
1997 Ozone National Ambient Air Quality Standards (NAAQS) Nonattainment Actions
Petitions
Ozone National Ambient Air Quality Standards (NAAQS) Section 126 Petitions
Ozone National Ambient Air Quality Standards (NAAQS) Section 176(A) Petitions