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 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
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
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
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In another example of business-friendly regulatory agency actions, the U.S. Environmental Protection Agency has just rescinded the “Seitz Memo” associated with the “Once In, Always In” policy affecting the...more