Regulation of greenhouse gases under the Clean Air Act

Regulation under 1963 US federal law

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Climate Policy (2)
Environmental Protection (1)
Legal Action (1)
Government Regulation (1)
Environmental Regulation (1)
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Government Rollbacks (1)

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EPA (1) · Endangerment Finding (1) · Greenhouse Gas Emissions (1) · Environmental Lawsuit (1) · Climate Change (1) · Regulatory Rollback (1) · Public Health Organizations (1) · Trump administration (1) · Climate lawsuit (1) · Emissions deregulation (1) · Scientific finding (1) · Environmental protection (1) · Climate policy (1) · Legal challenge (1) · Environmental groups (1)

📖 Key Information

The Endangerment Finding is the 2009 United States Environmental Protection Agency (EPA) finding that six key greenhouse gases (GHGs) constitute "air pollution" under Section 202(a)(1) of the Clean Air Act ("CAA" or "Act"), as they threaten both the public health and the public welfare of current and future generations. Accordingly, Section 202(a)(1) of the Clean Air Act requires the EPA Administrator to establish standards for emissions of these gasses from mobile and stationary sources of air pollution, including new motor vehicles or new motor vehicle engines. The finding came 12 years after an initial petition to so classify GHGs and a denial from EPA under the George W. Bush Administration, only after the United States Supreme Court required it to regulate it in 2007's Massachusetts v.

📰 Related News (2)

🇺🇸 Environmental, health groups sue EPA over repealing endangerment finding (2026-02-18)
A coalition of environmental and public health organizations filed a lawsuit Wednesday against the Environmental Protection Agency to stop it from rep...
🇺🇸 Trump administration sued over reversal of key climate finding (2026-02-18)
The Trump administration is facing a new lawsuit over its decision to deregulate emissions and repeal a landmark scientific finding on climate polluti...

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People and organizations frequently mentioned alongside Regulation of greenhouse gases under the Clean Air Act:

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