Center for Biological Diversity
EPARulemakingEPA-R08-OAR-2024-0622

CO Serious Area Contingency Measures

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Jun 25, 2025
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Center for Biological Diversity filings
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Center for Biological Diversity filed 1 comment on this docket between Jun 25, 2025 and Jun 25, 2025. 0 other organizations filed here. The comment window closed 399d ago.

What Center for Biological Diversity filed (1)

Jun 25, 2025· Comment submitted by Center for Biological Diversity· EPA-R08-OAR-2024-0622-0010

Please find attached the public comments of the Center for Biological Diversity, Colorado Sierra Club, and Public Employees for Environmental Responsibility.

Abstract

The Environmental Protection Agency (EPA) is proposing to approve state implementation plan (SIP) submittals under the Clean Air Act (CAA) that address contingency measures requirements for the 2008 ozone National Ambient Air Quality Standards (NAAQS) for the Denver Metro/North Front Range (DMNFR) ozone nonattainment area. The requirements at issue relate to the area’s previous Serious nonattainment classification. The EPA is proposing to find that the State has met the applicable CAA requirements for Serious area contingency measures and is proposing approval of the contingency measures SIP submittals, except that we are not taking action on one of the two identified contingency measures included in the submittals. In addition, the EPA is proposing to approve regulatory revisions that Colorado adopted to implement the submitted motor vehicle coating contingency measure. The EPA is taking this action pursuant to the CAA.

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CO Serious Area Contingency Measures (EPA) — Center for Biological Diversity | OpenPolis