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 This website is no longer updated and links to external websites and some internal pages may not work.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

Tribal Consultation Materials

On April 20, 2017, the U.S. Environmental Protection Agency initiated consultation and coordination with federally recognized Indian tribes on the forthcoming Step 2 proposal to revise the definition of "waters of the United States." The consultation period concluded on June 20, 2017. This presentation is from EPA and the Department of Army's informational webinar on May 18, 2017 for tribes and is representative of the presentations the agencies gave during the formal tribal 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.