News & Analysis as of

Environmental Policies Supreme Court of the United States California

ArentFox Schiff

Supreme Court Allows Fuel Producers to Contest California’s Emissions Rules

ArentFox Schiff on

For decades, California has been granted unique deference in setting Clean Air Act (CAA) emissions limitations for California-sold vehicles through use of a state-specific waiver....more

Allen Matkins

California Environmental Law & Policy Update 6.6.25

Allen Matkins on

On May 29, 2025, the Supreme Court held that the National Environmental Policy Act (NEPA) — which requires federal agencies to analyze the environmental impacts of projects that they perform, fund, or approve — does not...more

Allen Matkins

Renewable Energy Update 6.6.25

Allen Matkins on

On May 29, 2025, the Supreme Court held that the National Environmental Policy Act (NEPA) — which requires federal agencies to analyze the environmental impacts of projects that they carry out, fund, or approve — does not...more

Allen Matkins

California Environmental Law & Policy Update 5.2.25

Allen Matkins on

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

Sheppard Mullin Richter & Hampton LLP

Environmental YIR: 2024 Regulatory Legacies and Impacts

This report provides an overview of major federal environmental regulations and court decisions of 2024. Landmark U.S. Supreme Court decisions with lasting consequences for environmental policy include Loper Bright...more

Jones Day

U.S. Supreme Court Limits EPA Clean Water Act Permitting Authority

Jones Day on

On March 4, 2025, the Supreme Court of the United States issued its decision in City & County of San Francisco v. Environmental Protection Agency and clarified the U.S. Environmental Protection Agency's ("EPA") and state...more

Kelley Drye & Warren LLP

Supreme Court Strikes Down ​“End-Result” Requirements in NPDES Permits

On March 4, 2025, the U.S. Supreme Court issued a ruling that prohibits the U.S. Environmental Protection Agency (“EPA” or ​“the Agency”) from setting qualitative limits based on the condition of the ​“receiving waters” that...more

Allen Matkins

California Environmental Law & Policy Update 3.7.25

Allen Matkins on

On Tuesday, in a 5-4 opinion authored by Justice Samuel Alioto, the U.S. Supreme Court issued a pivotal ruling that the Clean Water Act (CWA) provisions authorizing the U.S. Environmental Protection Agency (EPA) to impose...more

Allen Matkins

Supreme Court Says EPA has no Authority to Impose “End-Result” Requirements in Clean Water Act Permits

Allen Matkins on

On Tuesday, March 4, 2025, the Supreme Court issued an opinion in City and County of San Francisco, California v. Environmental Protection Agency, U.S. No. 23-753 in which the City and County of San Francisco (San Francisco)...more

Tonkon Torp LLP

U.S. Supreme Court Ruling Will Make it Easier to Comply with NPDES Permits

Tonkon Torp LLP on

On March 4, 2025 the Supreme Court overturned the 9th Circuit to rule in favor of the City of San Francisco in a landmark Clean Water Act case. The EPA authorizes states to issue National Pollutant Discharge Elimination...more

Allen Matkins

California Environmental Law & Policy Update 2.7.25

Allen Matkins on

Newly-appointed U.S. Attorney General Pam Bondi wrote in a memo this Wednesday that the Justice Department will reverse a Biden-era directive to prioritize enforcement of environmental laws in disadvantaged and low-income...more

Allen Matkins

California Environmental Law & Policy Update 1.17.25

Allen Matkins on

On Monday, January 13, 2025, California withdrew requests for Clean Air Act waivers from the U.S. Environmental Protection Agency (EPA) needed to support four recently adopted vehicle emissions regulations: 1) the Advanced...more

Goldberg Segalla

SCOTUS Declines to Review EPA’s Authority on California’s Vehicle Emission Standards

Goldberg Segalla on

In a significant development for environmental law and state autonomy, the Supreme Court of the United States (SCOTUS) recently declined to review whether the U.S. Environmental Protection Agency (EPA) has the authority to...more

Allen Matkins

California Environmental Law & Policy Update 10.18.24

Allen Matkins on

California officials have been working on a plan to preserve the state’s leading edge environmental and climate policies, in the event that former President Donald J. Trump returns to the White House and follows through on...more

Allen Matkins

California Environmental Law & Policy Update 6.28.24

Allen Matkins on

The U.S. Supreme Court today upended a 40-year-old decision that made it easier for the federal government to regulate the environment, public health, workplace safety, and consumer protections, delivering a far-reaching and...more

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