♻️ap environmental science review

Clean Air Act

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

The Clean Air Act is a federal law in the United States that aims to control air pollution and improve air quality. It sets standards for emissions from industries, vehicles, and other sources, and establishes programs to reduce pollutants such as sulfur dioxide, nitrogen oxides, and particulate matter.