Section 401 Water Quality Certification

401 Certification Process Flowchart

401 Certification Process Flowchart (81.43 KB) .pdf is a coordinated roadmap for Section 401, Sovereign Lands, Flood Plains, and USACE Section 10/404 authorizations for projects proposing to discharge fill (e.g. rock, soil, rip rap) into a Water of the United States (WOTUS).

Pre-filing Meeting Request

DNR Chapter 61 rule requires a minimum of 30 days after submitting the Pre-Filing Meeting Request (1.55 MB) .pdf before submitting the certification request.

Send the pre-filing meeting request to [email protected]

Certification Request

Only submit the certification request when you are certain that the project will not change due to comments received during all required public notice periods.

• Section 401 Water Quality Pre-Filing Meeting and Certification Request Form and Instruction (1.55 MB) .pdf

Send the certification request to [email protected]

DNR 401 Public Notices

Public comments may be submitted via email to [email protected] or by mail to:

Iowa DNR
Attn: Section 401 Water Quality Certification
6200 Park Ave Ste. 200
Des Moines, IA 50321

Additional Resources

• Iowa Administrative Code Chapter 61 Water Quality Standards
• Permit and Environmental Review Management Tool (PERMT) Joint Application for Iowa DNR Flood Plain Management and Sovereign Lands/Environmental Review
• Antidegradation/Outstanding Iowa Waters and the Outstanding Iowa Waters Map (988.3 KB) .pdf
• Rock Island District Corps of Engineers - Nationwide Permits and Regional Permits
• Omaha District Corps of Engineers - Nationwide Permits and Regional Permits
• Corps of Engineers public notices
  • Regulatory public notices Rock Island District Corps of Engineers
  • Regulatory public notices Omaha District Corps of Engineers
• Iowa Department of Transportation 401 and 404 FAQs
• Natural Resources Conservation Service - Iowa
• Iowa's River Restoration Toolbox

Contact Information

Iowa Department of Natural Resources
Attn: Section 401 Water Quality Certification
6200 Park Ave Ste. 200
Des Moines, IA 50321
Email: [email protected]

U.S. Department of the Army Corps of Engineers, Rock Island District
Clock Tower Building – PO BOX 2004
Rock Island, IL 61204-2004
Phone: 309-794-5057
Email: [email protected]

U.S. Department of the Army Corps of Engineers, Omaha District
8901 South 154th Street
Omaha, NE 68138-3611
Phone: 402-896-0896
Email: [email protected]