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.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • 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

Breadcrumb

  1. Home
  2. CWA Section 401 Certification

Resources for Neighboring Jurisdiction Process

On this page:

  • Overview
  • Federal Agency Notice to EPA
  • EPA's May Affect Analysis
  • Neighboring Jurisdiction Evaluation
  • Public Hearing Process

Overview

CWA Section 401(a)(2), more commonly known as the neighboring jurisdiction process, provides notified neighboring jurisdictions the opportunity to evaluate and object to the issuance of the federal license or permit if a discharge originating in another jurisdiction will violate its water quality requirements. EPA provides notification to a neighboring jurisdiction in circumstances where the agency has determined, following appropriate notification from the Federal licensing or permitting agency, that discharge from a project may affect the neighboring jurisdiction's water quality. A federal license or permit may not be issued until the CWA Section 401(a)(2) process is complete.

New to CWA Section 401(a)(2)? 

This presentation provides an overview of CWA Section 401(a)(2). Additional resources about CWA Section 401 regulations, treatment in a similar manner as a State (TAS), and for when EPA is the certifying authority are available.


Federal Agency Notice to EPA

CWA Section 401(a)(2) provides that the Federal licensing or permitting agency must immediately notify the EPA Administrator upon receipt of a federal license or permit application and certification. 33 U.S.C. 1341(a)(2). In accordance with 40 CFR 121.12(a), the Federal licensing or permitting agency must provide EPA with written notification within five days of receiving both the federal license or permit application and either a certification or waiver.

This applies to ALL certifications and waivers on federal licenses or permits subject to CWA Section 401 certification (e.g., EPA-issued section 402 permits, general permits).

What if there is no application (e.g., general permits)?

The Federal agency must determine how best to comply with all Section 401 requirements (e.g., include a copy of the draft license or permit or project study). The following information must be included in the Federal agency notice to EPA:

  • Copy of the certification or waiver;
  • Copy of the application for the federal license or permit;
  • General description of the project (including but not limited to the federal license or permit identifier, project location (e.g., latitude and longitude), a project summary including the nature of any discharge and size or scope of activity, and whether the Federal agency is aware of any neighboring jurisdiction providing comment about the project); and
  • Copy of comments from neighboring jurisdictions.

Federal Agency Notification Form

Submit a 401(a)(2) notice to EPA using the Federal Agency Notification form.

EPA's May Affect Analysis

Upon receiving appropriate notification from the Federal agency, EPA has 30 days to determine whether the discharge from a federally licensed or permitted activity may affect the water quality of a neighboring jurisdiction.  A neighboring jurisdiction is "any state, or Tribe with treatment in a similar manner as a state for Clean Water Act section 401 in its entirety or only for Clean Water Act section 401(a)(2), other than the jurisdiction in which the discharge originates or will originate."

If EPA determines that the discharge from the project may affect water quality in a neighboring jurisdiction, EPA must notify the neighboring jurisdiction, the Federal agency, and the project proponent.


Neighboring Jurisdiction Evaluation  

The neighboring jurisdiction has 60 days upon notification from EPA to determine whether a discharge from the project will violate such water quality requirements, and if so, to notify the Federal agency and EPA to object to the issuance of the federal license or permit and request a public hearing from the Federal licensing or permitting agency.

Notifications from the notified neighboring jurisdiction to the Federal agency and EPA must be in writing and include the following components:

  • A statement that the notified neighboring jurisdiction objects to the issuance of the federal license or permit
  • An explanation of the reasons supporting the notified neighboring jurisdiction’s determination that the discharge from the project will violate its water quality requirements (e.g., an identification of those water quality requirements that will be violated)
  • A request for a public hearing from the Federal agency on the notified neighboring jurisdiction’s objection

The neighboring jurisdiction may withdraw its objection prior to the public hearing and shall notify both the Federal agency and the EPA, in writing, of such withdrawal.


Public Hearing Process

If a notified neighboring jurisdiction notifies the Federal agency and the EPA in writing of its objection to the issuance of the license or permit and requests a public hearing on such objection, the licensing or permitting agency shall hold such a hearing.

The Federal agency shall provide public notice at least 30 days in advance of the hearing to interested parties, including but not limited to the notified neighboring jurisdiction, the certifying authority, the project proponent, and EPA.

During the public hearing process, EPA objectively and neutrally evaluates the notified neighboring jurisdiction’s objection and provides recommendations to the Federal agency based on its expert, technical analysis of the record before it at the public hearing.

Related Information

CWA Section 401 Overview | Section 401 Regulatory Requirements | Outreach & Engagement Efforts | Technical Assistance Resources | Resources for when EPA serves as the Certifying Authority

CWA Section 401 Certification

  • CWA Section 401 Certification Overview
  • CWA Section 401 Regulatory Requirements
  • Outreach and Engagement
  • Technical Assistance
  • Resources for when EPA acts as the Certifying Authority
  • Resources for Neighboring Jurisdiction Process
Contact Us about CWA Section 401 Certification
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on June 9, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • 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
  • Site Feedback

Follow.