The Clean Air Framework Under Attack

The Clean Air Framework Under Attack

Car smog

Car smog

In the 1970s, CLIPI brought the nation's first Clean Air Act cases. Mary Nichols, CLIPI's first legal hire, filed the suits that forced Southern California to begin the decades-long process of cleaning up its air.

That legal framework helped make California's air 1,000 times cleaner than it was in the 1960s.

This July, the EPA sent two of California's Clean Air Act waivers to Congress, seeking to overturn them through the Congressional Review Act. In February, the agency rescinded the greenhouse gas endangerment finding entirely, eliminating the legal basis for regulating vehicle emissions under the Clean Air Act.

The EPA called it the largest deregulatory action in U.S. history.
California has sued. The legal battle over these waivers will likely define the future of state-level environmental regulation in this country.

Fifty years ago, CLIPI established the principle that clean air is a legal right, not a political preference. The tools we built, the cases we won, and the legal frameworks we helped create are now being challenged at a fundamental level.

The work of public interest law is never finished. It has to be defended by each generation.

More on CLIPI's clean air cases at clipi.org.

In the 1970s, CLIPI brought the nation's first Clean Air Act cases. Mary Nichols, CLIPI's first legal hire, filed the suits that forced Southern California to begin the decades-long process of cleaning up its air.

That legal framework helped make California's air 1,000 times cleaner than it was in the 1960s.

This July, the EPA sent two of California's Clean Air Act waivers to Congress, seeking to overturn them through the Congressional Review Act. In February, the agency rescinded the greenhouse gas endangerment finding entirely, eliminating the legal basis for regulating vehicle emissions under the Clean Air Act.

The EPA called it the largest deregulatory action in U.S. history.
California has sued. The legal battle over these waivers will likely define the future of state-level environmental regulation in this country.

Fifty years ago, CLIPI established the principle that clean air is a legal right, not a political preference. The tools we built, the cases we won, and the legal frameworks we helped create are now being challenged at a fundamental level.

The work of public interest law is never finished. It has to be defended by each generation.

More on CLIPI's clean air cases at clipi.org.

Category

News

Written by

Carlyle W. Hall Jr.

Co-Founder, CLIPI

Published

Category

News

Written by

Carlyle W. Hall Jr.

Co-Founder, CLIPI

Published

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Blog and articles

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Invite Carlyle to speak or provide commentary

Carlyle Hall is a retired public interest lawyer, environmental law advocate, and speaker on law, leadership, and social justice.

© 2026 Carlyle W. Hall Jr., All rights reserved.

Invite Carlyle to speak or provide commentary

Carlyle Hall is a retired public interest lawyer, environmental law advocate, and speaker on law, leadership, and social justice.

© 2026 Carlyle W. Hall Jr., All rights reserved.

Invite Carlyle to speak or provide commentary

Carlyle Hall is a retired public interest lawyer, environmental law advocate, and speaker on law, leadership, and social justice.

© 2026 Carlyle W. Hall Jr., All rights reserved.