Supreme Court Hears Arguments Related to California’s Clean Air Protections
Statement of EDF General Counsel Vickie Patton
The Supreme Court will hear arguments today in Diamond Alternative Energy LLC v. EPA, a case about whether fuel industry groups have legal standing to challenge EPA’s preemption waiver for California’s Advanced Clean Car I standards. Environmental Defense Fund is a party to the case.
“California’s clean car protections have saved hundreds of lives, have provided enormous health benefits, and have saved families money. They are vital safeguards for Californians and for people in the 17 other states who have adopted the program – people who are suffering from severe smog and soot and from the deadly wildfires, heatwaves and storms caused by climate change.
“California’s authority to protect people from vehicle tailpipe pollution is enshrined in our country’s foundational environmental laws and has been working successfully for more than half a century. The U.S. Court of Appeals for the D.C. Circuit has already unanimously rejected challenges to EPA’s preemption waiver for California’s Advanced Clean Car I program, and today the Supreme Court will only consider one part of those challenges – a narrow question about who has grounds to bring a challenge to court. California’s bedrock legal authority to adopt pollution safeguards, and the life-saving Advanced Clean Car I program created under it, will remain in effect and will continue to protect the lives and health of millions of people.”
- Vickie Patton, General Counsel, Environmental Defense Fund
With more than 3 million members, Environmental Defense Fund creates transformational solutions to the most serious environmental problems. To do so, EDF links science, economics, law, and innovative private-sector partnerships to turn solutions into action. edf.org
Latest press releases
-
EDF, Allies File Comments Urging the Trump EPA to Continue the Greenhouse Gas Reporting Program
November 3, 2025 -
Cost of Trump Administration’s Mandates to Keep Michigan Coal Plant Open Balloons to $80 Million
October 31, 2025 -
EDF Strengthens Role in Ocean-Climate Governance with New Consultative Status at the IMO’s London Convention and Protocol
October 31, 2025 -
New analysis finds Indigenous lands and protected areas are key in slowing deforestation
October 28, 2025 -
New Poll: Republicans, Democrats and Independents Strongly Oppose Weakening Chemical Safety Law
October 27, 2025 -
Court Rules New York Must Implement State Climate Law and Deliver Swift Action
October 24, 2025