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A program of the American Lung Association of the Southeast

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What governs air pollution?


The Clean Air Act (CAA) is the federal law that governs air pollution and efforts to improve air quality. The CAA requires EPA to set standards for how much of certain pollutants can be in the air.

The primary standard is health-based, set at a level designed to protect public health. Because of the Clean Air Act, we breathe cleaner, healthier air.

To learn more about this critical public health law and to help defend it, click here.