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Radon Publications

Both IEMA and USEPA publish informative documents on the control of indoor radon that are available to the general public. However, there are variations between Illinois measurement, mitigation laws and regulations, and USEPA reference or guidance documents. Yet both agree that radon poses health risks and both recommend taking action to reduce those risks when the Radon level is 4.0 pCi/L or more.

To obtain copies of USEPA radon documents, visit their website at or phone 1-800-438-4318.

You may request a copy of Illinois radon documents by emailing  Indicate the publication(s) you want and your postal address in the text of the message.

​​​​The ABC’s of Radon in Illinois - This document offers general information about what radon is, information about testing, and what to do if you have a problem.  The document is easy to read and understand.  This is the ​most requested document mailed out by the IEMA Radon Program.
Guidelines for Home Environment Radon Measurements - This fact sheet summarizes radon-testing protocols for individuals wanting to test their home environment for radon. Because of the unique nature of real estate transactions, IEMA has designed special protocols for radon testing in real estate transactions. If you expect to be selling your house in the near future, we recommend that you request the IEMA fact sheet "Radon Testing Guidelines for Real Estate Transactions."
Radon Testing Guidelines for Real Estate Transactions – This fact sheet and pamphlet summarize radon-testing protocols for individuals involved in a real estate transaction. Either format of this document is the pamphlet approved by IEMA in accordance with the requirements of the Radon Awareness Act.​
IEMA Guide to Radon Mitigation - This fact sheet summarizes radon reduction techniques followed by licensed radon mitigation professionals and offers the homeowner a guide to a quality radon mitigation system.​
Radon Mitigation System Checklist This checklist is provided for use by licensed home inspectors in Illinois as a simple tool to verify mitigation systems installations comply with the requirements of 32 Illinois Administrative Code 422.  This checklist is not a substitute for a compliance inspection performed by IEMA Radon Program Staff.​
32 Illinois Administrative Code 422 - This rule implements the Radon Industry Licensing Act.
Radon Industry Licensing Act - This is the legislation that required those providing radon testing and mitigation to be licensed with this Agency.  The 32 Illinois Administrative Code 422 outlines the details of how this licensing is implemented at IEMA.​
Illinois Real Property Disclosure Act - An Act relating to the disclosure of knowledge of radon in a home by the seller of residential real property​
Illinois Radon Awareness Act - This is the legislation that requires the seller to provide to the buyer of any interest in residential real property the IEMA pamphlet entitled "Radon Testing Guidelines for Real Estate Transactions" and the Illinois Disclosure of Information on Radon Hazards.​
Disclosure of Information on Radon Hazards – This form has been reviewed by the Illinois Department of Financial and Professional Regulation (IDFPR). This form may be used to satisfy the requirements of the Radon Awareness Act.​

Radon Contacts

For radon information by telephone call (800) 325-1245 (Information Line) or to speak to an IEMA Radon Program staff member call (217) 782-1325.​​​​​​​​​​