IL HB2217

Requires lessors to provide prospective and current tenants with the IEMA "Radon Guide for Tenants" pamphlet, copies of any radon test records indicating a radon hazard, and a standardized disclosure form before or during lease execution.

Allows tenants 90 days from lease commencement to conduct their own radon test at no cost to the lessor; if results exceed the IEMA recommended Radon Action Level and the lessor declines to mitigate, the tenant may terminate the lease.

Permits lessors to hire a licensed radon contractor to conduct an additional test within 30 days if they dispute tenant test results; radon test results remain valid for 2 years unless building renovations or modifications occur.

Allows tenants who discover radon hazards after the initial 90-day period to hire a radon contractor for mitigation at tenant expense with lessor consent, or terminate the lease within 60 days if the lessor does not mitigate.

Permits tenants to deduct radon mitigation system installation costs from rent in equal portions over the remainder of the lease term if lessor consents; prohibits lessors from withholding security deposits as compensation for radon testing or mitigation activities.