Implementation of the 2015 National Ambient Air Quality Standards (NAAQS) for Ozone: State Implementation Plan (SIP) Requirements
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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.
03/01/2018 - Final Nonattainment Area Classifications Approach