Buy your Hunting and Fishing license online today! We offer multi-year packages and combos for whatever you need to stay licensed.
Support conservation in Iowa by buying a natural resource plate for your vehicle.
Make your online reservation for state park cabins, camping sites and lodges.
Iowa DNR Customer Service
Mon - Fri, 8:00am - 4:30pm CST
Submit Online Inquiry
Information / Records Requests
Contact Information by County
The following fact sheets can help producers answer the three questions and determine if an NPDES permit is needed:
The DNR has updated several forms for livestock producers who need a permit for a combined operation. They include:
Owners and operators of small livestock truck washing businesses must apply for a land application permit. Look for the Livestock Truck Wash Land Application Permit Application (DNR form 542-0157) and example permit. Find more information on the DNR’s National Pollutant Discharge Elimination System (NPDES) permits pages.