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Wetlands, Lakes and Streams Regulation

Wetlands, Lakes & Streams > Application Materials Application Materials

Which application form do I need to submit to IDEM for Section 401 Water Quality Certification?

Please read IDEM's Frequently Asked Questions for specific information to assist you in determining which application form you need to use for your project.

If your project proposes minimal impacts to Waters of the U.S., your project may be eligible to use IDEM's Regional General Permit (RGP) Notification Form (available on the IDEM Forms page).  If your project meets the Terms and Conditions of the Regional General Permit Notification form, you can apply for Section 401 Water Quality Certification by submitting this IDEM RGP Notification Form.  The Regional General Permit Notification may now be submitted online via the Regulatory Services Portal (RSP).

If your project does NOT meet all of the Terms and Conditions of the RGP Notification form, you must apply for a site-specific Individual Section 401 Water Quality Certification.  To apply for a site-specific Individual Section 401 Water Quality Certification, you must use the Application for Authorization to Discharge Dredged or Fill Material to Isolated Wetlands and/or Waters of the State (available on the IDEM Forms page).  It is likely that mitigation will be required for site-specific Individual Section 401 Water Quality Certifications.

How do I obtain IDEM application forms?

There are several ways to obtain copies of the two IDEM Section 401 Water Quality Certification application forms:

  • Download a copy (see below)
  • E-mail an IDEM project manager and request a copy via e-mail.
  • Call the Section 401 Water Quality Certification Program at (317) 233-8488 and request a copy of the application.
  • Write to us at the following address:

Indiana Department of Environmental Management
Section 401 WQC Program
100 N. Senate Avenue
MC 65-42 WQS IGCN 1255
Indianapolis, IN 46204

How do I download an IDEM application form for Section 401 Water Quality Certification?

The following state forms are now available on the IDEM Forms page:

  • Application for Authorization to Discharge Dredged or Fill Material to Isolated Wetlands and/or Waters of the State
  • Regional General Permit Notification Form

Where do I get applications from the U.S. Army Corps of Engineers or the IDNR?

Information on how to fill out the permit and additional information is available on the U.S. Army Corps of Engineers Website.

U.S. Army Corps of Engineers
Detroit District
P.O. Box 1027
Detroit, MI 48231
Phone: (313) 226-2218
Detroit District

U.S. Army Corps of Engineers
Louisville District
P.O. Box 59
Louisville, KY 40201-0059
Phone: (502) 315-6733
Louisville District

U.S. Army Corps of Engineers
Regulatory Branch
231 LaSalle Street Suite 1500
Chicago, IL 60604
Phone: (312) 846-5530
FAX: (312)353-4110
E-Mail: lrcregweb@usace.army.mil

Application forms from the Indiana Department of Natural Resources (IDNR) are available on the IDNR Division of Water website, or you may apply directly to the department using their on-line application form.

Indiana Department of Natural Resources
Division of Water
402 West Washington Street
Room W264
Indianapolis, IN 46204-2748
Phone:  (317) 232-4160 or Toll Free at (877) 928-3755
Division of Water

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