An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Clean Air Act Overview

The Plain English Guide to the Clean Air Act

The Plain English Guide to the Clean Air Act provides a brief introduction to the 1990 Clean Air Act. The 1990 Clean Air Act is the most recent version of a law first passed in 1970 to clean up air pollution. This summary covers some of the important provisions of the 1990 Clean Air Act and may help you understand what is in the law and how it may affect you.

Related information in Spanish

Información relacionada en español  

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.