Iowa Release Notification: What you need to know

Governing Law and Regulations

Hazardous substance releases: Iowa Administrative Code (IAC) 567-131.1(455B) and IAC 567-131.2(455B)

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Underground storage tank (UST) and aboveground storage (AST) releases:

Release detection: IAC 567-135.5(455B)

Reporting of suspected releases: IAC 567-135.5(455B)

Reportable releases: IAC 567-135.7(455B) and IAC 567-135.8(455B)

Nonreportable releases: IAC 567-135.6(4)(b)(455B)

Excess air emissions: IAC 567-24.1(455B)

Regulatory Agencies

Iowa Department of Natural Resources (DNR) Environmental Services Division (ESD)

Iowa Department of Public Defense Homeland Security and Emergency Management Division

U.S. Environmental Protection Agency (EPA) Region 7

Local emergency planning committees (LEPCs)

Local fire and police departments

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Generally, Iowa follows the federal requirements for release notification. Iowa has some additional state requirements.

Administration and enforcement. ESD and LEPCs, along with local fire and police departments, enforce Iowa's release notification rules.

The Iowa Homeland Security and Emergency Management Division is the central source for information on the state's homeland security and emergency management efforts and initiatives. It was formed in October 2001, and its mission is to lead, coordinate, and support homeland security and emergency management functions in Iowa. For more information, see the state section SECURITY.

State Requirements


A spill should be reported immediately if:

  • The hazardous substance has the potential to leave the property by flowing over the surface or ...

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State Requirements

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Iowa Release Notification Resources

Release Notification Products

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This special report contains a recordkeeping checklist to help you keep track of your records for major environmental laws and OSHA’s Hazard Communication Standard.

Also included are 3 useful tables which provide:
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