Answer :
Final answer:
The EPA enforces the Clean Air Act to reduce air pollution, regulates ozone-depleting substances, and oversees unfunded mandates.
Explanation:
The Environmental Protection Agency (EPA) plays a crucial role in enforcing the Clean Air Act, a federal law aimed at reducing air pollution nationwide. EPA sets limits on air pollutants, limits emissions from sources like chemical plants, utilities, and steel mills, and works with states, tribes, and local governments to ensure compliance.
As part of the Clean Air Act amendments, EPA regulates ozone-depleting substances, like requiring the gradual phase-out of chemicals affecting the ozone layer. They provide funding, research, and support to achieve clean air goals.
The Clean Air Act exemplifies an unfunded mandate, with EPA setting federal standards that states must implement independently to meet air quality regulations.
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