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EPA Will Reconsider the Ozone NAAQS — What Is An Adequate Margin of Safety, Anyway?

Law and Environment

On Friday, EPA announced that it was reconsidering its 2020 decision to leave the National Ambient Air Quality Standards for ozone unchanged. However, EPA stated that it: will reconsider the decision to retain the ozone NAAQS in a manner that adheres to rigorous standards of scientific integrity. Still whistling in the wind , I fear.

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Improving EPA’s Latest Ozone Transport Rule

Acoel

The agency’s air quality modeling indicates that most areas would receive an ozone reduction of less than 0.1 These air quality impacts are minimal compared with the major ozone reductions resulting from the 1998 SIP Call, which resulted in more than 80,000 megawatts of coal capacity being retrofitted with SCRs. ppb by 2025.

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DEP Posted 56 Pages Of Permit-Related Notices In February 24 PA Bulletin

PA Environment Daily

. -- The Department of Environmental Protection published notice in the February 24 PA Bulletin inviting comments on its determination that 57 major industrial facilities across the state meet Air Quality RACT II and RACT III requirements and the 2015 national ozone pollution standard. All through its eNotice system.

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EPA’s Denial of Louisiana’s Revised SIP

The Energy Law Blog

On December 7, 2023, the Environmental Protection Agency (EPA) disapproved the state implementation plan (SIP) revisions for the Baton Rouge ozone nonattainment area that Louisiana set forth in response to EPA’s 2015 SIP Call rule. To comply with the 2015 SIP Call rule, Louisiana had proposed revising its SIP by removing LAC 33:III.2201.C.8,

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DEP Posted 41 Pages Of Permit-Related Notices In Nov. 12 PA Bulletin

PA Environment Daily

Notice of new technical guidance documents and regulations? Sign Up For DEP’s eNotice: Did you know DEP can send you email notices of permit applications submitted in your community? All through its eNotice system. Click Here to sign up. Related Tools - Visit DEP’s Public Participation Center for public participation opportunities.

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Public Comments Invited On State Air Quality Plan Amendment For PEI Power Corp Natural Gas-fired Power Plant In Lackawanna County

PA Environment Daily

PA Bulletin, page 851 ) The proposed SIP revision does not adopt any new regulations. It incorporates the provisions and requirements contained in the RACT III approval for the facility, which are intended to satisfy the requirements for the 2015 National Ambient Air Quality Standard (NAAQS) for ozone.

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EPA’s Power Plant Carbon Rules Are Critical—and Complex. Here’s What to Know, and What to Watch.

Union of Concerned Scientists

A multi-decade legal history, including four Supreme Court decisions, has led to unimpeachable clarity on this one point: EPA has a statutory obligation to regulate carbon emissions from power plants under Section 111 of the Clean Air Act. So what follows from that obligation?