Podcast - Diamond Alternative Energy, LLC v. EPA: The Intersection of Constitutional and Environmental Law
SCOTUS Clean Air Act Cases: What’s New?
Rewriting the Rules: The Supreme Court's Landmark Decision on Clean Water Act Permits
Compliance into the Weeds: More Compliance Challenges in the Trump Era
Environmental and Sustainability Regulations & the New Administration
No Password Required: USF Cybercrime Professor, Former Federal Agent, and Vintage Computer Archivist
Georgia on My Mind: On the Frontlines of Federal Rulemaking With AG Carr — Regulatory Oversight Podcast
Small Refinery Exemption Litigation Update
[Podcast] Keith Matthews and Chris Wozniak: Talking Ag Biotech Episode 5
[Podcast] Keith Matthews and Chris Wozniak: Talking Ag Biotech Episode 4
Consumer Finance Monitor Podcast Episode: A Look at the Current Challenge to Judicial Deference to Federal Agencies and What it Means for the Consumer Financial Services Industry, With Special Guest, Craig Green, Professor, Temple University
What to Expect in Chemicals Policy and Regulation and on Capitol Hill in 2023
H2-OWOW! – A Reflective Conversation with John Goodin, Former Director of EPA’s Office of Wetlands, Oceans, and Watersheds – Reflections on Water Podcast
Reflections on Sackett - Reflections on Water Podcast
PFAS in Focus: Wastewater Utility Perspectives From Jay Hoskins, Metropolitan St. Louis Sewer District - Reflections on Water Podcast
[Podcast] Keith Matthews and Chris Wozniak: Talking Ag Biotech
Environmental Agencies, Superfund Cleanups, and Managing Enforcement Actions
West Virginia vs. EPA Part II: U.S. Supreme Court Applies the Major Questions Doctrine to limit EPA Regulatory Authority
#WorkforceWednesday: Employers Respond to Dobbs, Implications of the Supreme Court's EPA Ruling, and Pay Increases for CA Health Care Workers - Employment Law This Week®
PFAS Regulatory Update: EPA Issues Updated Drinking Water Health Advisories
Welcome to Horizon, DLA Piper’s monthly bulletin reporting on late-breaking legislative and policy developments in ESG. Our aim is to scan the litigation, enforcement, and regulatory horizon to help inform business decisions....more
Earlier this month, the Regional Greenhouse Gas Initiative (RGGI) announced the completion of the RGGI Third Program Review, which resulted in several major changes to the RGGI Model Rule that will shape the program through...more
On July 3, 2025, the Regional Greenhouse Gas Initiative (RGGI) completed and released its Third Program Review and an updated CO2 Budget Trading Program Model Rule. RGGI evaluated numerous scenarios during the multi-year...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
EPA announces details of its reorganization. On May 2, the EPA announced a major reorganization that will eliminate several key offices, including the Office of Atmospheric Protection (OAP), Office of Air Quality Planning and...more
Vehicle manufacturers and operators in California are no stranger to complex regulations, with the California Air Resources Board’s (CARB) history of pioneering mobile emission regulations. ...more
The United States Pipeline and Hazardous Materials Safety Administration (“PHMSA”) addressed in a January 3rd Interpretive Letter the applicability of the federal Hazardous Materials Regulations (“HMR”) to a device designed...more
In the face of the Trump administration’s hostility toward California’s Clean Air Act waivers in general, CARB withdrew its request to EPA for a waiver for the Advanced Clean Fleets (ACF) regulation on January 13, 2025....more
In 2015, EPA proposed a rule requiring states to develop plans to cut CO2 emissions from the power sector—the Clean Power Plan (“CPP”). EPA explained the rule would result in “significant emission reductions” for that sector,...more
California’s Air Resources Board (CARB) on Jan. 13 sent a letter to withdraw its request to the Environmental Protection Agency pursuant to Sections 209(b) of the Clean Air Act (CAA) for a federal waiver that would require...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 new emission limits apply to new passenger cars, light trucks and large pickups and vans, and set increasingly stringent fleet-wide emission limits covering carbon dioxide and other pollutants for Model Years 2027-2032....more
On March 20, 2024, EPA announced new emissions standards for light-duty and medium-duty vehicles, starting with model year (“MY”) 2027 and phasing in through MY 2032. The new standards require reductions in emissions of...more
Action May Have Far-Reaching Impacts - Today, the Environmental Protection Agency (“EPA”) and the National Highway Traffic Safety Administration (“NHTSA”) announced a joint rule intended to substantially affect...more
As President Trump’s nominee to head the Environmental Protection Agency, Andrew Wheeler, cleared a key committee vote this week, a conflict between EPA and the State of California over tailpipe greenhouse gas emissions shows...more
The National Highway Traffic Safety Administration (NHTSA) and the U.S. Environmental Protection Agency (EPA) issued a joint notice of proposed rulemaking today, called the "Safer Affordable Fuel-Efficient (SAFE) Vehicles...more