Iowa DNR's Twitter Iowa DNR's Flicker Iowa DNR's YouTube Iowa DNR's Pinterest Iowa DNR's Facebook | Iowa Outdoors Magazine | News | Contact Us

Site Search  search button

Section 304, Emergency Release Notification


The State of Iowa requires any person manufacturing, storing, handling, transporting, or disposing of a hazardous substance to notify the department and local law enforcement of the occurrence of a hazardous condition. The notification should be made as soon as possible but not later than six hours after the onset or discovery of the hazardous condition. Local law enforcement is also required by Iowa Code to report a "Hazardous Condition" to the department within 6 hours.

If In Doubt…Report It!


If the hazardous condition involves the release of an EPA regulated material or an oil as defined by the EPA, the release may also need to be reported to the National Response Center at (800) 424-8802. Federal Reporting is required within 15 minutes of event occurrence or discovery.  

Hazardous Incident Tracking Database 

The Iowa Department of Natural Resources' Hazardous Incident Tracking database tracks chemical spills and releases, manure spills, and continuous release of hazardous substance reports.


Forms, Guides, and Resources
Forms and Guides Useful Resources
Spill Reporting Guide Iowa Hazmat Teams
Written Report Submittal Guide Hazmat Cleanup Contractors
30 Day Written Report Form | Federal Reportable Quantities
Electronic Report Submission Guide National Response Center
Hazardous Incident Tracking Database Manual DNR Field Offices