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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 This website is no longer updated and links to external websites and some internal pages may not work.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 »
On August 8, 2019, the EPA signed a proposed rule to implement Clean Water Act section 401. On August 20, 2019, the EPA hosted a public webinar to help explain the key elements of the proposed “Updating Regulations on Water Quality Certifications” rule.