A discussion of the Clean Air Act (CAA), its amendments, and significant caselaw pertaining to clean air regulation in the US.

Because of its highly polluted air, Congress gave California the power to set its own, more stringent vehicle standards in the 1967 Clean Air Act.

The party-line vote marked the first time in the 55-year history of the Clean Air Act that Congress has moved to weaken the power of the landmark environmental law.

Congress is expected to undo a Clean Air Act regulation that strictly controls the amount of toxic air pollutants emitted by many industrial facilities like oil refineries, chemical plants and ...

I am alarmed that California's clean-air standards face threats from Senate Republicans, risking American innovation in electric vehicles and global market competitiveness.

Congress has voted to undo a Clean Air Act regulation that strictly controls the amount of toxic air pollutants emitted by many industrial facilities like oil refineries, chemical plants, and ...

EPA proposes rolling back clean air rules for power plants: What to know The changes would reverse two landmark power plant emission regulations.

It also marks the first time in the Clean Air Act’s 55-year history that Congress has scaled back protections under the landmark environmental law.

The U.S. Senate on Thursday passed two joint resolutions that revoke two Clean Air Act waivers granted to the California Air Resources Board that allowed strict, state-level emissions standards ...

Since its inception, when President Richard Nixon signed the Clean Air Act in 1970, the landmark legislation has had overwhelming bipartisan support.

The Supreme Court on Wednesday will hear a challenge to the state’s long-standing Clean Air Act waiver that allows it to establish pollution limits for cars and trucks that are stricter than the ...

Northwest Indiana residents and environmentalists are disappointed by possible air pollution exemptions, but they’re not surprised.