Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Emergency

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, 2025. This website is no longer updated and links to external websites and some internal pages may not work. More information »

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Climate Change
    • Emergency Response
    • Environmental Information by Location
    • Environmental Justice
    • Greener Living
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History
    • Staff Directory

Breadcrumb

  1. Home
  2. CWA Section 401 Certification

Resources for When EPA Acts as the Certifying Authority under Section 401

water and trees during autumn

The EPA acts as the certifying authority on behalf of states or Tribes that do not have ‘‘authority to give such certification.’’ 33 U.S.C. 1341(a)(1). The EPA acts as the certifying authority in two scenarios: (1) on behalf of Tribes without ‘‘treatment in a similar manner as a state’’ (TAS) and (2) on lands of exclusive Federal jurisdiction.

The EPA has developed the resources described below to help with the implementation of the 2023 Rule, when the EPA acts as the certifying authority. In instances where the EPA is the certifying authority, project proponents should refer to the templates below for more information on how to request a pre-filing meeting and submit a request for certification to the EPA. Submissions should be made to the EPA Region where the project is located. EPA Regional points of contact may be found on the Section 401 Contact Us webpage.

These materials are not regulations, nor do they change or substitute for any applicable regulations. Thus, they do not impose legally binding requirements on the EPA, states, Tribes, other federal agencies or the regulated community. These documents neither alters legal rights or obligations nor change or create law. In the event of a conflict between the discussion in this document and any statute or regulation, these documents would not be controlling.

Pre-Filing Meeting Requests

  Template and Process for CWA Section 401 Certification Pre-Filing Meeting Request (docx) (68.43 KB)

Pre-filing meeting requests ensure that certifying authorities have an opportunity to receive early notification of and discuss the project and potential information needs with the project proponent. Certifying authorities may determine appropriate submission procedures for pre-filing meeting requests. For clarity when EPA acts as the certifying authority, the EPA recommends that project proponents submit a pre-filing meeting request to the Agency in writing and has provided a list of recommended components of a pre-filing meeting request. These components are not required by the EPA, but the EPA views these components as good practices for any pre-filing meeting requests to any certifying authority.

Requests for Certification

Template and Process for a CWA Section 401 Request for Certification when the EPA is the Certifying Authority (docx) (73.36 KB)

The EPA has required that all requests for certification be in writing, signed, and dated and include defined minimum contents (40 CFR 121.5(a)). To provide certainty and transparency, the EPA has also defined additional contents of a “request for certification” when EPA acts as a certifying authority or for when a state or authorized Tribe does not define additional contents (40 CFR 121.5(b) and 40 CFR 121.5(d)).

Certification Decisions

Section 401 Certification Actions - Best Practices when the EPA is the Certifying Authority (docx) (57.96 KB)

When a certifying authority receives a request for certification, it may take one of four actions on the request for certification:

  • Grant certification (40 CFR 121.7(c))
  • Grant certification with conditions (40 CFR 121.7(d))
  • Deny certification (40 CFR 121.7(e))
  • Expressly waive certification (40 CFR 121.7(f))

While the EPA is not requiring certifying authorities to include decision-specific contents in each of the four certification decisions, the EPA strongly encourages certifying authorities to include the recommended contents located at final rule sections 121.7(c) through (f) for transparency and clarity.

CWA Section 401 Certification

  • Section 401 Certification Home
    • Basic Information on Section 401 Certification
    • Read Section 401
  • Final 2023 Clean Water Act Section 401 Water Quality Certification Improvement Rule
    • Treatment in a Similar Manner as a State (TAS) for Clean Water Act Section 401
    • Treatment in a Similar Manner as a State (TAS) for Clean Water Act Section 401(a)(2)
  • Outreach and Engagement on CWA Section 401 Certification
  • Resources when EPA acts as the Certifying Authority
  • Contact Us
Contact Us about CWA Section 401 Certification
Contact Us about CWA Section 401 Certification to ask a question, provide feedback, or report a problem.
Last updated on December 6, 2024
  • Assistance
  • Ayuda
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • Aide
  • Asistans
  • Korean
  • Assistência
  • Russian
  • Tulong
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions

Follow.