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Waters of the United States
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Federalism and Tribal Update Materials

EPA is archiving material relevant to the Navigable Waters Protection Rule, including this page, to avoid confusion during the upcoming rulemaking efforts.

On December 12, 2017, the U.S. EPA and the U.S. Department of the Army held a webinar to update governmental partners, including tribes, states and local governments, their associations, and other federal agencies, on the agencies’ progress towards revising the definition of “Waters of the United States." This presentation was used at that meeting.

  • Definition of "Waters of the United States" Update Webinar for Governmental Partners - December 12, 2017 (pdf)
  • Waters of the United States Home
  • About Waters of the United States
    • Current Definition of Waters of the United States
    • Programs Utilizing the Definition of Waters of the United States
  • Current Implementation of Waters of the United States
    • Training and Implementation Memos
    • Implementation Tools and Methods
  • Revising the Definition of Waters of the United States
    • Public Outreach and Stakeholder Engagement Activities
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on December 2, 2021
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