Unpacking California's 2024 Zero Emission Fleet Mandate
West Virginia vs. EPA Part II: U.S. Supreme Court Applies the Major Questions Doctrine to limit EPA Regulatory Authority
[Webinar] Growing Greener: Navigating Environmental Laws in the Cannabis Industry
Nota Bene Episode 101: Catching up with Global Climate Regulation with Nico van Aelstyn
Schoenbrod: SCOTUS Ruling Helps EPA Deal With a "Stupid Statute"
Law Prof: The Clean Air Act Needs a Reboot
Over the course of the last 15 years, the U.S. Environmental Protection Agency (EPA) has developed a suite of regulations under the Clean Air Act (CAA) built upon EPA’s finding – originally made in 2009 – that greenhouse gas...more
Welcome to Industrials Regulatory News and Trends. In this regular bulletin, DLA Piper lawyers provide concise updates on key developments in the industrials sector to help you navigate the ever-changing business, legal, and...more
We look forward to Earth Day 2025 today, the Corporate Environmental Lawyer is once again kicking off its weekly series of blogs which focus on this year’s Earth Day theme — “Our Power, Our Planet”. This year marks the 55th...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
When evaluating legal risk relating to per- and polyfluoroalkyl substances (“PFAS”), most businesses typically consider wastewater, groundwater, or soil impacts, not air emissions. However, state and federal regulatory...more
The Arkansas Department of Energy and Environment - Division of Environmental Quality (“DEQ”) and Nucor-Yamato Steel Company (“Nucor”) entered into a March 24th Consent Administrative Order (“CAO”) addressing an alleged...more
The National Association of Clean Air Agencies (“NACAA”) issued a document titled: Recommendations for FY 2026 Federal Grant Funding for State and Local Clean Air Agencies (“Recommendations”)....more
The American Chemistry Council (“ACC”) and American Fuel & Petrochemical Manufacturers (“AFPM”) sent a March 31st letter to the United States Environmental Agency (“EPA”) requesting: …a two-year exemption from the...more
In a significant development for Arizona’s business community and environmental policymakers, the U.S. Environmental Protection Agency (EPA) has paused its planned reclassification of Maricopa County from “Moderate” to...more
On April 9, the White House issued a memorandum directing federal executive departments and agencies to repeal regulations deemed unlawful pursuant to certain U.S. Supreme Court decisions. This directive aims to address...more
On April 9, 2025, President Trump issued a Presidential Memorandum titled “Directing the Repeal of Unlawful Regulations,” marking a significant step in the Administration’s push to deregulate under the broader DOGE...more
The Mississippi Commission on Environmental Quality (“MCEQ”) and USG Interiors, LLC (“USG”) entered into a March 14th Agreed Order (“AO”) addressing an alleged violation of an air permit. See Order No. 7466 25....more
President Trump has issued a flurry of new Executive Orders and Presidential Memoranda aimed at advancing the Administration’s deregulatory agenda, particularly in the energy and environmental sectors. This advisory provides...more
President Donald Trump's April 8, 2025, proclamation extends the compliance deadline for the EPA's Mercury and Air Toxics Standards (MATS) by two years, from July 8, 2027 to July 8, 2029, asserting national security concerns...more
President Donald Trump’s second inaugural address identified making America “energy dominant again” as one of four America First Priorities. Having issued several statements and executive orders in January that focused on...more
The president’s actions aim to bolster coal production and exports and coal-fired power generation, highlighting the importance of coal to US economic and national security....more
The Arkansas Department of Energy and Environment - Division of Environmental Quality (“DEQ”) and Industrial Iron Works, Inc. - Adams Fertilizer Equipment (“IIW”) entered into a February 27th Consent Administrative Order...more
The Center for Biological Diversity (“CBD”) filed an April 3rd Clean Air Act Title V Petition to Object (“Petition”) before the United States Environmental Protection Agency (“EPA”) related to DC Operating Company, LP for the...more
The U.S. 5th Circuit Court of Appeals gave a big win to the EPA when it upheld a Biden-era ozone ruling affecting Louisiana and Texas, but there was also a set-back for the EPA when the Court both upheld the ability of such...more
Effective May 2024, EPA tightened the annual health-based National Ambient Air Quality Standard (NAAQS) for fine particulate matter (PM2.5) from 12.0 µg/m3 to 9.0 µg/m3. This change was made after a review of the available...more
Under the Clean Air Act, sources frequently must undergo “New Source Review” (NSR) permitting, which is a pre-construction permitting program. NSR establishes requirements for new or modified sources prior to initiating...more
States are increasingly turning to “Climate Superfund” laws as a potential mechanism to offset the growing costs of climate-related disaster recovery and the construction of more climate change-resilient infrastructure. 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
Every law student learns that the Administrative Procedure Act (APA) outlines the default rules for how federal agencies propose and finalize regulations and how courts review them. But for many significant actions under the...more