Radon in Illinois Law

Illinois Radon Awareness Act

Tenants Radon Protection Act
Summary: Effective January 1, 2012,

Provides that before a lease is signed, a landlord shall provide to each tenant in a dwelling unit, on or below the third floor, any records or reports pertaining to radon concentrations within the dwelling unit that present a radon hazard. Provides that before a lease is signed, a landlord shall furnish each prospective tenant with an Illinois Emergency Management Agency radon guide for tenants, a prescribed form of disclosure of information on radon hazards, and any test results. Provides that a landlord has up to 30 days to obtain a radon test after receipt of a tenant's notification of a test revealing radon. Provides that a measurement by a radon contractor is valid for 5 years. Provides that nothing implies an obligation on a landlord or a tenant to conduct any radon testing. 

In Real Estate Transactions
Summary: Effective January 1, 2008,

The majority of residential real estate sales will have a new separate disclosure document for radon. This disclosure requires:  

  1. A Radon Warning Statement advising the buyer that the property may present exposure to dangerous levels of indoor radon gas and may place the occupants at risk of developing radon-induced lung cancer.
  2. Signed acknowlegment by the real estate agents that they have informed the seller of the seller’s obligations under Illinois law.
  3. The Seller provide an IEMA approved Radon Disclosure Pamphlet to the buyer.
  4. The Seller disclose any knowledge and provide any available documentation of radon test results from the home.
  5. All parties in the transaction, including all real estate agents, sign the document acknowledging the transfer of the required information.

Read the full text of the Illinois Radon Awareness Act here.

Two (pdf) versions of the IEMA Disclosure Pamphlet are here: Pamphlet or Sheet

If you received a disclosure, but you are unsure how to evaluate the information provided, please see our Radon Disclosure Assessment.

For Radon Service Providers

Illinois regulates the radon industry. This guarantees our consumers the highest quality control protections.

In Illinois, anyone providing radon measurement services (paid or unpaid) must be licensed by the state. 
  • Only licensed radon measurement personnel can set up or pick up a test.
  • Anyone setting a measurement device outside their own home must be licensed. 
  • If your measurement provider asks you or someone else to seal a test kit and mail it back to a lab, that person is violating state law, compromising your test and our industry, and should immediately be reported to the state of Illinois. 
When contracting for mitigation services to reduce known radon levels in a home, the contractor must be licensed by the state of Illinois to perform radon mitigation.  So, in short: 
  • A homeowner may attempt to mitigate his own home (which we cannot discourage enough), but if he pays someone, that person must be licensed. 
  • A builder may use radon reduction techniques and devices in a pre-emptive attempt to keep radon levels low, but once a test is performed and the radon levels in the house are known, any further mitigation work must be performed by a licensed radon mitigator.
We sincerely appreciate any effort on your behalf to help us keep our industry standards as high as possible.  If you are concerned about a radon measurement or mitigation, please don't hesitate to call the state radon program for guidance at 217-782-1325 or to file a  non-conformance report.