EPA Publishes First-Of-Its-Kind Framework for Considering Cumulative Impacts Across Agency Actions

On November 21, 2024, the U.S. Environmental Protection Agency (EPA) published Notice of a newly developed draft framework intended to provide all EPA programs with a shared reference point for determining when and how to analyze or consider cumulative impacts—defined broadly to include the totality of exposures to combinations of environmental stressors and their effects on health and quality-of-life outcomes.  Keeping pace with the Biden administration EPA’s environmental justice drive, key goals of the Interim Framework for Advancing Consideration of Cumulative Impacts include empowering EPA to (1) more fully and accurately characterize the realities communities face, (2) pinpoint the levers of decision making and identify opportunities for interventions that improve health and quality of life while advancing equity, and (3) increase meaningful engagement, improve transparency, and center actions on improving health and environmental conditions in communities.

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U.S. EPA Removes Regulatory Affirmative Defense Provision Against Alleged Violations of Oil and Gas Facility NESHAPs

On October 22, 2024, the U.S. Environmental Protection Agency (EPA) published a final rule removing an affirmative defense from Clean Air Act (CAA) National Emission Standards for Hazardous Air Pollutants (NESHAP) regulations for the Oil and Natural Gas Production Facility and Natural Gas Transmission and Storage Facility Source Categories (Final Rule).[1] Prior to the Final Rule, owners or operators could assert an affirmative defense that alleged NESHAP standard violations were caused by an equipment malfunction.[2] A “malfunction” is defined as any sudden, infrequent, and not reasonably preventable failure of air pollution control and monitoring equipment, process equipment, or a process to operate in a normal or usual manner.[3]

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EPA Issues Final Rule for Major Source Reclassification Under Clean Air Act Section 112

On Tuesday, September 10, the U.S. Environmental Protection Agency (EPA) issued a final rule establishing requirements for major sources of hazardous air pollutants — sources that emit or have the potential to emit 10 tons per year of a single hazardous air pollutant or 25 tons per year of a combination of hazardous air pollutants — that reclassify as area sources below these thresholds. Reversing a rule adopted during the Trump administration, the rule provides that sources emitting any of the seven persistent and bioaccumulative hazardous air pollutants listed under Section 112(c)(6) of the Clean Air Act must continue to comply with major source standards even if otherwise reclassified as area sources. As a result, reclassified sources will still be subject to maximum achievable control technology standards rather than less stringent standards applicable to area sources. In so doing, EPA maintains that at least 90% of the cumulative emissions of these pollutants will be subject to National Emission Standards for Hazardous Air Pollutants (NESHAP) regardless of future source reclassifications.

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17 States File Complaint Challenging Constitutionality of California’s Advanced Clean Fleets Regulation

On May 13, 2024, 17 states filed a complaint in the U.S. District Court for the Eastern District of California challenging California’s Advanced Clean Fleets (ACF) regulation.

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U.S. EPA Proposes Revisions to Project Emissions Accounting Under New Source Review

The U.S. Environmental Protection Agency (EPA) is proposing revisions to the New Source Review (NSR) permitting program that would make it more difficult to net out of NSR requirements by changing how to calculate the net emissions resulting from a facility modification. EPA also proposes to define the term “project” more narrowly to prevent sources from aggregating changes to net out of major NSR requirements. The proposal would revise reforms adopted only four years earlier during the Trump administration that had provided additional flexibility to sources making changes to their operations.

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EPA Chemical Safety Rule Raises Questions About Authority

For what appears to be the first time in its history, the U.S. Environmental Protection Agency has recently finalized a rule that requires board-level involvement in an EPA-administered program. Specifically, the EPA’s recent amendments to the Risk Management Program (RMP) require certain chemical plants and refineries to submit third-party audit reports on process safety directly to the audit committee of the company’s board of directors. In short, the EPA is seeking to get involved in corporate governance by dictating what information management must provide to the audit committee and when — regardless of management input. In this article, first published in Law360 on April 25, 2024, Sidley lawyers Justin Savage, Ike Adams, and Aaron Flyer dissect the recent RMP amendments, which are a follow up to the EPA’s Safer Communities by Chemical Accident Prevention rule, finalized March 11, 2024. The authors explore the EPA’s authority to regulate corporate governance requirements, the practical value in doing so, and the potential fallout for companies in terms of corporate governance. If the new RMP rule survives judicial review, it may embolden the EPA to issue other board reporting obligations in any number of its regulatory programs governing corporate operations.

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U.S. EPA Sets Stricter National Ambient Air Quality Standards for Particulate Matter

On February 7, 2024, the U.S. Environmental Protection Agency (EPA) issued a final rule under the Clean Air Act lowering the primary (health-based) annual National Ambient Air Quality Standard (NAAQS) for fine particulate matter 2.5 micrometers in diameter or smaller (PM2.5) from 12 to 9 micrograms per cubic meter (µg/m3). EPA asserts that the stricter standard is based on scientific evidence showing that the current PM2.5 standard (12 µg/m3), which was established in 2012 and retained in 2020, does not sufficiently protect human health. According to EPA, based on air monitoring data from 2020-22, 119 counties would not meet the new standard of 9 µg/m3.

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Louisiana Federal Court Enjoins EPA’s Use of Disparate Impact Requirements in State Permitting Actions

On Tuesday, January 23, 2024, the U.S. District Court for the Western District of Louisiana granted a preliminary injunction filed by the State of Louisiana seeking to halt the efforts of the Environmental Protection Agency (EPA) in imposing disparate impact-based mandates under Title VI of the Civil Rights Act in permitting decisions. The state contends that Title VI prohibits only intentional discrimination and, as a result, EPA’s disparate-impact regulations in 40 C.F.R. §§ 7.10-180 are an unlawful attempt by EPA to impose its environmental justice policy goals in official permitting decisions. According to Louisiana, EPA’s efforts to advance disparate impact-based mandates without explicit statutory authorization runs afoul of the major questions doctrine, which requires agencies to act in accordance with explicit congressional mandate for matters of major political or economic significance.

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U.S. Fifth Circuit Reverses EPA’s Denial of Fuel Program Hardship Exemption for Refineries

In Calumet Shreveport Refining LLC v. EPA, Case No. 22-60266 (5th Cir. Nov. 22, 2023), the U.S. Court of Appeals for the Fifth Circuit struck down Environmental Protection Agency (EPA) denials of six small refineries’ petitions for hardship relief under the Clean Air Act Renewable Fuel Standard (RFS) program, holding that EPA used an “impermissibly retroactive” standard to deny the refineries’ petitions in violation of the Administrative Procedure Act. This ruling could serve as a basis for other refineries to challenge EPA’s retroactive denial of their hardship petitions — and provides support for similar petitions pending before the U.S. Court of Appeals for the D.C. Circuit.

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U.S. EPA Publishes New Regulations Governing State Plans for Existing Sources of Emissions

On November 9, 2023, the U.S. Environmental Protection Agency (EPA) published implementing regulations that set timelines and other requirements for state plans to limit pollution from existing sources under Clean Air Act (CAA) Section 111. The amended provisions apply to all emissions guidelines published after July 8, 2019, and will affect the scope and pace of development of updated performance standards for existing facilities.

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