The Legal and Practical Challenges of California's Advanced Clean Fleets Regulation
Nota Bene Episode 101: Catching up with Global Climate Regulation with Nico van Aelstyn
Schoenbrod: SCOTUS Ruling Helps EPA Deal With a "Stupid Statute"
On June 11, 2025, the U.S. Environmental Protection Agency ("EPA") announced a proposed rule to repeal key amendments to the 2024 Mercury and Air Toxics Standards ("MATS") for coal- and oil-fired electric utility steam...more
On June 17, 2025, the U.S. Environmental Protection Agency (“EPA”) published a proposed rule to repeal the amendments to the Mercury and Air Toxics Standards (“MATS”) adopted by the Biden administration in 2024. These...more
The Colstrip Power Plant in Montana is now one of the early applicants to the new EPA exemption application process which we have previously discussed here. Specifically, the Colstrip plant has requested a two-year exemption...more
In what it called “the greatest and most consequential day of deregulation in U.S. history,” the Environmental Protection Agency (EPA) announced its most expansive deregulatory initiative to date on March 12, 2025. Through a...more
The Trump Administration announced a long-awaited proposal to roll back the Obama-era Clean Power Plan late last month. (Chicago Tribune). The action had been promised by the President and his appointees at EPA, who pursued...more
Irony abounds as the new Acting Administrator at EPA last Tuesday announced historic progress under the Clean Air Act even while the Administration works to roll back a number of Clean Air Act rules. ...more
Through a combination of memoranda and a recently proposed rulemaking, EPA Administrator Scott Pruitt is moving to affect longstanding and fundamental components of EPA programs. The merits (or lack thereof) may be lost as...more
U.S. Environmental Protection Agency (EPA) Administrator, Scott Pruitt, announced Monday that the agency is withdrawing the Obama-era Final Determination of the Mid-term Evaluation (MTE) of greenhouse gas (GHG) emission...more
EPA Administrator Pruitt announced on Monday that the Agency has completed a midterm evaluation of greenhouse gas emissions standards for cars and light-duty trucks for the model years 2022-2025. He has determined that the...more
Since 1995, EPA has followed a policy that any air emissions source that emits one or more hazardous air pollutants (“HAPs”) above major source emissions thresholds is always considered a major source of HAPs. This is so even...more
2017 was an unusual year for environmental regulation, particularly under the Clean Air Act. A new President and new EPA Administrator have brought about significant changes to the environmental policies of their...more
On January 25, 2018, the Environmental Protection Agency (EPA) withdrew its longstanding but controversial “once in, always in” policy that a “major source” of hazardous air pollutants (HAP) was forever locked into “major...more
Seyfarth Synopsis: In another example of business-friendly regulatory agency actions, the U.S. Environmental Protection Agency has just rescinded the “Seitz Memo” associated with the “Once In, Always In” policy affecting the...more
On January 25, 2018, EPA announced that it was withdrawing its “once in, always in” policy for the classification of major sources of hazardous air pollutants (HAPs) under Section 112 of the Clean Air Act. Under its new...more