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  2. National Pollutant Discharge Elimination System (NPDES)

Submitting a Notice of Intent (NOI), Notice of Termination (NOT), or Low Erosivity Waiver (LEW) under the Construction General Permit

Construction Stormwater Permitting Topics
  • Overview
  • 2022 CGP
  • Lands of Exclusive Federal Jurisdiction
  • Threatened and Endangered Species
  • Turbidity Benchmark Monitoring (Dewatering)
  • Getting Permit Coverage / NeT CGP Waivers
  • Submitting CGP Forms
  • CGP Inspector Training
  • Resources, Tools, and Templates
  • Report Non-Compliance or Violations
On this page:
  • How to Submit an NOI, NOT or LEW via CGP-NeT
  • How to Modify and Terminate Permit Coverage
  • User Guides and Trainings
  • eNOI Helpdesk Contacts
  • eNOI Search
  • How to Submit Paper Forms

How to Submit an NOI, NOT or LEW via CGP-NeT

Submit your NOI, NOT or LEW through the electronic CGP submission system, the NPDES eReporting Tool or “CGP-NeT”.

Go to CGP-Net to submit your NOI, NOT, or LEW.


How to Modify and Terminate Permit Coverage

Modifying your NOI 

Use the CGP-NeT system to modify your NOI. The following modifications to an NOI form will result in a 14-day review process:

  • Name of the operator
  • Project or site name
  • Estimated area to be disturbed
  • Name of the receiving water or additions to the applicable receiving waters
  • Endangered Species Protection or Historic Preservation eligibility information
  • Information provided on the use of Chemical Treatment at your site
  • Answers provided regarding the demolition of structures over 10,000 square feet of floor space built or renovated before January 1, 1980

During the 14-day review process, you may continue to operate based on the information provided in your original NOI, but you must wait until the review period has ended before you can commence or continue activities on any portion of your site that would be affected by any of the above modifications, unless EPA notifies you that the authorization is delayed or denied.

Terminating Coverage

Use the CGP-NeT system to submit a Notice of Termination (NOT) to terminate your permit coverage. You can submit an NOT once your site is permanently stabilized or when control of the site has been transferred to another operator.


User Guides and Trainings

Many of the CGP-NeT training materials you will need can be found on EPA's Knowledge Search website. You will also find the following specific materials helpful in using and accessing CGP-NeT:

  • Updated version coming soon! CGP-NeT Quick Start Guide – Quickly learn how to set up an account and prepare and submit forms.
  • Updated version coming soon! CGP-NeT Training Schedule - Includes schedule for upcoming CGP-NeT trainings. Note: The CGP-NeT training has not yet been scheduled. Once the training occurs, a recorded version and the PowerPoint presentation materials will be made available here.
  • More CGP-NeT training resources can be found on EPA's NeT ServiceNow website
  • EPA has created an email subscription service for CGP stakeholders on NeT announcements. To register for this service, visit GovDelivery Email Subscription for CGP

eNOI Helpdesk Contacts

CDX Registration Questions
helpdesk@epacdx.net
Domestic Callers: (888) 890-1995 [8:00 a.m. - 6:00 p.m. (Eastern Time)]
International Callers: (970) 494-5500

NeT-CGP Questions
NPDESeReporting@epa.gov
Domestic Callers: (877) 227-8965 [8:00 a.m. - 5:00 p.m. (Eastern Time)]
Submit a question using the Ask a Question Form  - or -
Visit the NeT Support Portal


eNOI Search

  • View NOIs and LEWs submitted under the 2017 and 2022 CGPs.
  • View NOIs and LEWs submitted under the 2008 and 2012 CGPs.

How to Submit Paper Forms

Waivers from electronic reporting may be granted based on one of the following conditions:

  1. If your operational headquarters is physically located in a geographic area (i.e., ZIP code or census tract) that is identified as under-served for broadband Internet access in the most recent report from the Federal Communications Commission; or
  2. If you have limitations regarding available computer access or computer capability.

If your EPA Regional Office grants you a waiver to use a paper NOI form, and you elect to use it, you may complete and submit information on paper. Use the links below for more information on what must be submitted:

  • 2022 CGP – Appendix H - Notice of Intent (NOI) Form (pdf) (317.89 KB)
  • 2022 CGP – Appendix I - Notice of Termination (NOT) Form (pdf) (164.5 KB)
  • 2022 CGP – Appendix C - Waivers (pdf) (82.07 KB)
  • 2022 CGP – Appendix K - Turbidity Monitoring Report Form (pdf) (385.95 KB)

Mail your signed paper form to one of the following addresses:

For Regular U.S. Mail Delivery:
Stormwater Notice Processing Center
Mail Code 4203M
ATTN: 2022 CGP
U.S. EPA
1200 Pennsylvania Avenue, NW
Washington, DC 20460

For Overnight/Express U.S. Mail Delivery:
Stormwater Notice Processing Center
William Jefferson Clinton East Building - Room 7420
ATTN: 2022 CGP
U.S. EPA
1201 Constitution Avenue, NW
Washington, DC 20004

National Pollutant Discharge Elimination System (NPDES)

  • About NPDES
    • Permit Basics
    • State Program Information
    • Permit Limits
    • Program Management and Oversight
    • NPDES Regulations
    • Other Federal Laws that Apply to the NPDES Permit Program
  • All NPDES Program Areas
    • Animal Feeding Operations
    • Aquaculture
    • Forest Roads
    • Industrial Wastewater
    • Municipal Wastewater
      • Combined Sewer Overflows (CSOs)
      • Sanitary Sewer Overflows (SSOs)
      • Peak Flows
      • Integrated Planning
    • National Pretreatment Program
      • Standards and Requirements
      • Roles and Responsibilities
      • Events, Training and Webinars, and Publications
    • Pesticide Permitting
    • Stormwater
      • Construction Activities
      • Industrial Activities
      • Municipal Sources
      • Transportation Sources
      • Oil and Gas Permitting
      • Stormwater Planning
      • EPA's Residual Designation Authority
      • Rules and Notices
    • Water Quality Trading
  • NPDES Technical Resources
    • Resources for Permit Writers
    • NPDES Permit Writers' Manual
    • NPDES Training
    • Tools
    • Electronic Notice of Intent (eNOI)
    • NPDES Applications and Forms
Contact Us About NPDES
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 8, 2025
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