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State Attorneys General › Constitutional Challenges › Environmental Policies

Troutman Pepper Locke

Fifteen States Sue the Trump Administration Over “Energy Emergency” Executive Order

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On May 9, 2025, fifteen democratic states (“Plaintiff States”) sued the Trump Administration in Washington District Court, claiming that President Trump’s executive order “Declaring a National Energy Emergency” (“Executive...more

Cozen O'Connor

Vermont’s Climate Superfund Law Draws Heated Challenge from GOP AGs

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A group of 24 Republican AGs, along with several trade associations, sued Vermont over the state’s Climate Superfund Act, which authorizes the state to levy billions of dollars in fines on fossil fuel companies for alleged...more

Morgan Lewis

Executive Order Seeks to Limit State Role in Energy Regulation

Morgan Lewis on

The US administration issued the executive order “Protecting American Energy from State Overreach” on April 8, 2025, directing the US Attorney General to identify and challenge state- and local-level energy and climate...more

Cozen O'Connor

The State AG Report – 03.27.2025

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Here are curated AG and federal regulatory news stories highlighting key areas in which state and federal regulators’ decisions are having an impact across the US: •Republican AGs Pen Fiery Letter About Coal to Interior...more

Troutman Pepper Locke

22 AGs Challenge New York’s Climate Superfund Law

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A coalition of industry associations and 22 state attorneys general (AG), led by West Virginia AG JB McCuskey, filed a lawsuit against the State of New York in the U.S. District Court for the Northern District of New York...more

Mintz

Red State AGs Sue New York State in Challenge to Climate Change Superfund Act

Mintz on

In December 2024, the State of New York enacted the “Climate Change Superfund Act,” which would impose retroactive fines on fossil fuel producers for greenhouse gas emissions that contribute to climate change. (New York was...more

Cozen O'Connor

New York Climate Superfund Law Faces Heated Opposition from Republican AGs

Cozen O'Connor on

A group of 22 Republican AGs, along with several coal, oil, and gas companies and industry trade associations, sued New York over the state’s Climate Superfund Act, which authorizes the state to levy billions of dollars in...more

Cozen O'Connor

Housing Energy Efficiency Standards Face GOP Challenge

Cozen O'Connor on

A coalition of 15 Republican AGs, joined by the National Association of Home Builders, has filed a lawsuit challenging new minimum energy standards for federally funded housing issued by the Department of Housing and Urban...more

Troutman Pepper Locke

Nebraska Attorney General Leads Multi-State Coalitions to Challenge Electric Truck Mandates

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Nebraska Attorney General (AG) Mike Hilgers is leading multi-state coalitions in two lawsuits aimed at challenging the Biden Administration and the State of California’s electric vehicle mandates on truck owners and operators...more

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