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EPA Proposes to Rescind Landmark Greenhouse Gas Endangerment Finding and Eliminate Mobile Source Emissions Standards for GHGs

Today, August 1, 2025, the US Environmental Protection Agency (EPA) published a controversial proposed rule that, if finalized, would rescind the agency’s landmark 2009 determination that greenhouse gas (GHG) emissions from...more

New White House AI Action Plan and EO Aim to Streamline Environmental Review and Data Center Permitting

DLA Piper’s Artificial Intelligence (AI) and Data Analytics legal and policy team previously issued a client alert analyzing the White House’s unveiling of “Winning the Race: America’s AI Action Plan” (the Action Plan) and...more

Seven County Infrastructure Coalition v. Eagle County: Top Points

Supreme Court aims to provide predictability by narrowing the scope of NEPA review - The Supreme Court’s latest ruling in Seven County Infrastructure Coalition v. Eagle County marks a significant “course correction” in how...more

EPA Announces Vision for PFAS Policy and Commences Rulemaking Activity

In late April, US Environmental Protection Agency (EPA) Administrator Lee Zeldin issued a press release announcing EPA’s anticipated policy platform for addressing per- and polyfluoroalkyl substances (PFAS) in the...more

Maine DEP Extends CUU Designations by Two Years Under PFAS in Products Law

As discussed in our prior alert, Maine’s Department of Environmental Protection (DEP) published a proposed rule prescribing procedures and criteria for determining Currently Unavoidable Uses (CUU) of intentionally added per-...more

Supreme Court Limits EPA's Permitting Authority Under the Clean Water Act

The Supreme Court recently ruled that the Clean Water Act (CWA) does not authorize the Environmental Protection Agency (EPA) to impose “generic” or “end-result” prohibitions in National Pollutant Discharge Elimination System...more

Trump Transition: Updates and Impacts on the Environmental and Regulatory Landscapes

The first month of President Donald Trump’s second term has seen a flurry of Executive Orders (EOs) impacting a swath of agencies, departments, and legislation. The environmental sector has been a particular focus of these...more

Maine DEP Proposes Currently Unavoidable Use Procedures for PFAS in Products Law

Maine’s Department of Environmental Protection (DEP) recently published a proposed rule prescribing procedures and criteria for determining Currently Unavoidable Uses (CUU) of intentionally added per- and polyfluoroalkyl...more

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