Jul 25, 2025 · The Clean Air Act, or CAA, is the comprehensive federal law that regulates air emissions from stationary and mobile sources, using standards such as National Ambient Air Quality Standards …

The Clean Air Act (CAA) is the United States' primary federal air quality law, intended to reduce and control air pollution nationwide. Initially enacted in 1963 and amended many times since, it is one of …

Dec 9, 2025 · Clean Air Act (CAA), U.S. federal law, passed in 1970 and later amended, to prevent air pollution and thereby protect the ozone layer and promote public health.

Federal legislation addressing air pollution was first passed in 1955, prior to which air pollution was the exclusive responsibility of state and local levels of government. The federal role was strengthened in …

It was a declaration that clean air is not a luxury, but a fundamental right for every citizen. The Act created a comprehensive federal and state partnership to control air pollution, fundamentally …

that Federal financial assistance and leadership is es-sential for the development of cooperative Federal, State, re-gional, and local programs to prevent and control air pollution.

Oct 22, 2025 · These are the latest in a series of amendments made to the Clean Air Act (CAA). This legislation modified and extended federal legal authority provided by the earlier Clean Air Acts of …

Jun 19, 2025 · The Clean Air Act of 1970 (CAA) is a landmark United States federal law designed to protect public health and welfare by regulating air emissions from stationary and mobile sources. It …

The Clean Air Act Amendments of 1970 represent a pivotal moment in U.S. environmental policy, marking the federal government's first comprehensive effort to regulate air quality.

Jan 29, 2025 · Congress sought to improve the nation's air quality beginning in the late 1960s with the passage of the Air Quality Act in 1967. following this first foray into regulation of air pollutants came …