An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

EPA National Library Network

Notice:  EPA Libraries are suspending in-person visits by the public until further notice. MORE

The EPA National Library Network provides information resources and services to EPA staff and the public to support the mission of the EPA.