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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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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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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?

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Environmental Law: Government and Public Policy Towards the Environment

Environmental Science

What is Environmental Law? Humanity has been aware of its environment far longer than there have been laws to protect environments. However, the term “environmental law” does not just cover government legislation. These are not “laws” per se but act as such within a regulatory framework. Useful Environmental Law Terms.

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United States v. Enviro-Safe Refrigerants, Inc.

Environmental Law Reporter

05/14/2015. Fri, 05/15/2015 - 07:20. United States v. Enviro-Safe Refrigerants, Inc. anderson@eli.org.

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The Problems with the SCOTUS ‘Good Neighbor’ Arguments

Legal Planet

Herzog (former Emmett/Frankel Fellow at UCLA School of Law 2012-2016) and Sean H. When EPA strengthened the national ozone standard in 2015 based upon updated scientific understanding of ozone’s health harms, it triggered States’ obligation to develop Good Neighbor plans.