Nov 25, 2025 · Clean Air Act (CAA) is a U.S. federal law, passed in 1970 and later amended, to prevent air pollution and thereby protect the ozone layer and promote public health.

Oct 22, 2025 · Clean Air Act of 1970 The enactment of the Clean Air Act of 1970 (1970 CAA) resulted in a major shift in the federal government's role in air pollution control.

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 …

Jul 1, 2025 · The Clean Air Act (CAA) was enacted primarily in response to mounting public health concerns and devastating environmental damage caused by unchecked air pollution.

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 …

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.

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 …

Jan 29, 2025 · The CAA was intended " to protect and enhance the quality of the Nation's air resources so as to promote the public health and welfare and the productive capacity of its population." The …

The 1970 CAA amendments required EPA to determine which air pollutants posed the greatest threat to public health and welfare and promulgate NAAQS and air quality criteria for them.

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 …