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ConceptClean Air Act / CAA

Clean Air Act

A foundational U.S. federal law governing air quality management. It authorizes the EPA to establish national ambient air quality standards and to regulate emissions from stationary pollution sources. The Act includes a citizen suit provision that allows private parties to bring enforcement actions against violators. It serves as the primary legal framework for air pollution control in the United States.

Timeline (last 90 days)

Oct 27

Environmental organizations and some states can sue regulators under the Clean Air Act's "citizen suit" provisions, arguing that they have failed to fulfill their statutory emission-reduction obligations.

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Oct 27

States such as California hold Clean Air Act waivers allowing them to implement stricter vehicle and stationary-source emission standards on their own.

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