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 ...

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

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

The Supreme Court on Wednesday issued two rulings on where certain challenges to actions taken by the Environmental Protection Agency under the Clean Air Act must be filed. In the […] ...

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 ...

According to the Environmental Defense Fund (EDF), this allows more than 500 facilities across the United States to bypass limits for hazardous air pollutants and other toxic substances.

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

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 ...

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 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 ...