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 This website is no longer updated and links to external websites and some internal pages may not work.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 »

Navigable Waters Protection Rule

Federalism Consultation Materials

EPA, the Department of the Army, and the Army Corps of Engineers held an initial Federalism consultation briefing on April 19, 2017 for the Step 2 proposed rule to define "waters of the United States." That presentation is representative of the presentations the agencies gave during the federalism consultation period. 

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