Air Plan Approval and Air Quality Designation; Connecticut; Determination of Clean Data for the 2008 8-Hour Ozone Standard for the Greater Connecticut Area

The Environmental Protection Agency (EPA) is finalizing a clean data determination for the Greater Connecticut Serious 8-hour ozone nonattainment area, concluding that the area has monitored attainment of the 2008 8-hour National Ambient Air Quality Standard (NAAQS) for ozone, based upon certified 2016-2018 ozone data. This action suspends the requirements for this area to submit an attainment demonstration, a reasonable further progress plan, contingency measures, and other planning State Implementation Plan (SIP) revisions related to attainment of the 2008 8-hour ozone NAAQS on the condition that the area continues to attain the 2008 8-hour ozone NAAQS. This action is being taken in accordance with the Clean Air Act.