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
[WEBINAR] Update on the California Environmental Quality Act: What’s New for 2018
The EPA’s Office of Air and Radiation (“OAR”), responsible for most of the EPA’s major air regulatory and policy efforts, will be restructured in the months to come. This shakeup comes on the heels of the EPA’s announcement...more
The Conservation Law Foundation (“CLF”) and Twin Rivers Technologies (“TRT”) entered into a March 30th Consent Decree (“CD”) addressing alleged violations of the Clean Air Act and the Clean Water Act. See No....more
The White House Council on Environmental Quality (CEQ) circulated a draft template, dated April 8, 2025, to assist federal agencies in updating their procedures for implementing the National Environmental Policy Act (NEPA)....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
Port Arthur Community Action Network (PACAN) v. Texas Commission on Environmental Quality et al. (Tex. Feb. 14, 2025) presented the Texas Supreme Court with a unique opportunity to provide defined guideposts to understand...more
The National Association of Clean Air Agencies (“NACAA”) transmitted a December 18, 2024, letter to Lee Zeldin. Mr. Zeldin is President Trump’s nominee for Administrator of the United States Environmental Protection...more
The Commonwealth of Kentucky, Energy and Environment Cabinet and Louisville Metro Air and Pollution Control District (collectively, “Kentucky”) filed a Complaint in the United States District Court for the Western District of...more
Nitrogen Oxide (NOx) is a very reactive, brown-hued gas commonly produced when fuels are burned at high temperature by motor vehicles, chemical plants, etc. Industries will often intentionally oxidize NOx to produce lacquers,...more
The United States Environmental Protection Agency (“EPA”) and the Center for Biological Diversity (“CBD”) entered into an October 28th Consent Decree addressing an issue arising out of Section 108 and 109 of the Clean Air Act...more
On September 11, the US Environmental Protection Agency (EPA) took final action approving a revision to California’s State Implementation Plan (SIP) to include the South Coast Air Quality Management District’s (SCAQMD)...more
The week of June 23, 2024, in Ohio v. Environmental Protection Agency, the U.S. Supreme Court clarified in a 5-4 decision that if a federal agency fails to provide a reasoned response to comments raised during the rulemaking...more
The Arkansas Department of Energy and Environment – Division of Environmental Quality (“DEQ”) submitted on July 1st to the United States Environmental Protection Agency (“EPA”) a document titled: Arkansas Ambient Air...more
The Clean Air Act (“CAA”) envisions states and the federal government working together to improve air quality. Under the CAA, states must develop State Implementation Plans (“SIPs”) to implement National Ambient Air Quality...more
The Sierra Club filed a May 13th Title V Petition to Object (“Petition”) before the United States Environmental Protection Agency (“EPA”) related to the Salt River Project Agricultural Improvement and Power District (“SRP”). ...more
The Biden-Harris Administration recently issued a suite of new rules aimed at addressing water and air quality, reducing methane emissions, protecting environmental justice communities, and accelerating the nation’s...more
As one of the nation’s largest hubs of industrial production, Louisiana is no stranger to federal emissions regulations. Recently, the Louisiana Department of Environmental Quality (LDEQ) faced off against the Sierra Club...more
On Tuesday, in Ohio v. EPA, the D.C. Circuit Court of Appeals denied several challenges to EPA’s decision to restore California’s authority under § 209(b) of the Clean Air Act to regulate emissions from motor vehicles. It’s...more
The United States House of Representatives passed by partisan vote legislation denominated H.R. 7650 that would amend the Clean Air Act titled: “Air Quality Standards Implementation Act of 2024” (“Act”). The Act...more
The Environmental Protection Agency announced March 20 final national pollution standards applicable to cars, light-duty trucks, and medium-duty vehicles. These standards apply to vehicles manufactured beginning in 2027. The...more
The United States Court of Appeals for the D.C. Circuit (“Court”) addressed in a March 1st Opinion an issue addressing start up, shut down and malfunction (“SSM”) provisions. See Environmental Committee of the Florida...more
On March 6, 2024, EPA published its final rule lowering the primary annual National Ambient Air Quality Standards (“NAAQS”) for fine particulate matter (“PM2.5”) to 9.0 micrograms per cubic meter (“µg/m3”). The new, more...more
On March 6, 2024, the United States Environmental Protection Agency (EPA) published in the Federal Register its long-awaited reconsideration of the National Ambient Air Quality Standard (NAAQS) for particulate matter (PM). In...more
Twenty-four State Attorneys General filed a Petition for Review (“Petition for Review”) in the United States Court of Appeals for the District of Columbia Circuit challenging a United States Environmental Protection Agency...more
Exercising one of its most important and far-reaching powers under the Clean Air Act, the Environmental Protection Agency (EPA) has lowered the primary annual National Ambient Air Quality Standard (NAAQS) for fine particulate...more