Key Takeaways -
What Happened? On July 29, 2025, the U.S. Environmental Protection Agency (EPA) published a proposed rule to rescind the 2009 Greenhouse Gas (GHG) Endangerment Finding (“Endangerment and Cause or Contribute...more
In a pair of closely watched decisions issued on June 18, 2025, the U.S. Supreme Court answered a critical procedural question under the Clean Air Act (CAA): is the proper venue for judicial review of U.S. Environmental...more
This alert was originally published on September 19, 2024, and has been revised based on recent developments.
Update: On April 29, 2025, US EPA and the Texas Railroad Commission (RRC) signed a memorandum of agreement...more
On March 12, U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin announced that EPA would soon undertake efforts to roll back 31 environmental regulations that cut across industry sectors. EPA’s deregulatory...more
Overview -
Following our post-election Alert outlining major anticipated themes for environmental and natural resource law and policy in the second Trump administration, leaders from a number of our practices – many of...more
The U.S. Environmental Protection Agency (EPA) Region 6 recently issued the first draft Class VI permits in Texas under the Safe Drinking Water Act (SDWA) Underground Injection Control (UIC) program. These draft permits would...more
Key Takeaways -
• What Is Happening? On January 12, 2024, the U.S. Environmental Protection Agency (EPA) announced a proposed rule to implement the Inflation Reduction Act’s (IRA) Methane Waste Emissions Charge (WEC). The...more
Key Takeaways -
• What Is Happening? On January 12, 2024, the U.S. Environmental Protection Agency (EPA) announced a proposed rule to implement the Inflation Reduction Act’s (IRA) Methane Waste Emissions Charge (WEC)....more
Key Takeaways -
• What Is Happening? On December 2, 2023, during the United Nations Climate Change Conference (COP28), the U.S. Environmental Protection Agency (EPA) announced a final Clean Air Act (Act) rule designed to...more
On September 15, 2023, the U.S. Environmental Protection Agency (EPA) issued its final rule governing water quality certifications under Section 401 of the Clean Water Act (CWA). Section 401 requires the applicant for a...more
On May 25, the U.S. Supreme Court issued its long-awaited decision in Sackett v. EPA, No. 21-454, holding that Clean Water Act (CWA) jurisdiction extends to wetlands only if they have a continuous surface connection to...more
On May 23, 2023, after months of anticipation, the U.S. Environmental Protection Agency (EPA) published its proposal for sweeping greenhouse gas (GHG) emissions standards (GHG Rules) in the Federal Register that will, if...more
Under the Biden Administration, the U.S. Environmental Protection Agency (EPA) continues to aggressively combat climate change. According to major media outlets, EPA will soon release a rule requiring power plants to...more
On February 21, 2023, the U.S. Court of Appeals for the Ninth Circuit (Ninth Circuit) issued the latest in a series of opinions involving the Trump Administration’s rule interpreting Section 401 of the Clean Water Act (CWA)....more
Key Takeaways -
• What Happened? The U.S. Environmental Protection Agency (EPA) is seeking to increase the protection of tribal treaty rights through water quality standards. First, EPA issued a final rule re-establishing...more
Key Takeaways & Analysis -
During the COP27 meeting of the UN Climate Change Convention, President Biden unveiled significant proposed enhancements to the Administration’s existing methane regulation program, including a...more
On June 30, 2022, the U.S. Supreme Court issued its decision in West Virginia v. EPA, 597 U.S. __, 2022 WL 2347278 (June 30, 2022), a case involving the Obama Administration’s Clean Power Plan (CPP) and the Trump...more
On November 2, 2021, President Biden released the U.S. Methane Emissions Reduction Action Plan (the “Plan”). The Plan, calling for substantial reductions in U.S. methane emissions, was announced in tandem with an...more
On October 29, 2021, the U.S. Supreme Court agreed to hear an appeal of the D.C. Circuit’s decision vacating the Affordable Clean Energy (ACE) rule, the Trump Administration’s action to address CO2 emissions from existing...more
On January 19, 2021, the D.C. Circuit vacated the Affordable Clean Energy (ACE) rule, the Trump Administration’s action to address CO2 emissions from existing coal-fired power plants. The ACE rule repealed an Obama-era rule...more
On December 20, 2019, the U.S. Court of Appeals for the Ninth Circuit ordered the Environmental Protection Agency (EPA) to issue “long overdue” total maximum daily loads (TMDLs) for water temperature for the Columbia and...more