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Ground-level Ozone Pollution

Implementation of the 2015 National Ambient Air Quality Standards (NAAQS) for Ozone: State Implementation Plan (SIP) Requirements

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

03/01/2018 - Final Nonattainment Area Classifications Approach

11/17/2016 - Proposed Nonattainment Area Classifications and SIP Requirements Rule

12/13/2016 - Public Hearing Announcement and Comment Period Extension for Proposed Nonattainment Area Classifications and SIP Requirements Rule

Additional Resources

Fact Sheet and Webinar Information:  Final Nonattainment Area State Implementation Plan Requirements

Fact Sheet: Final Nonattainment Area Classifications Approach

Implementation of the Ozone National Ambient Air Quality Standard (NAAQS) Memorandum

Fact Sheet and Webinar Information:  Proposed Requirements for Implementing the 2015 Ozone Standards

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)

1997 Ozone National Ambient Air Quality Standards (NAAQS) Nonattainment Actions

Petitions

Ozone National Ambient Air Quality Standards (NAAQS) Section 126 Petitions