A bill for an act authorizing cities to require radon testing for single family residences used as rental property.

This bill (SF 43) authorizes Iowa cities to require radon testing for single-family rental homes when owners apply for or renew a rental permit after July 1, 2021. It directly affects rental property owners in cities that adopt such ordinances. Key provisions include requiring certified testing for radon levels, mandating radon mitigation systems if levels reach 4 picocuries per liter or higher (with retesting within 90 days), and setting retesting schedules of 4-8 years based on results. The law specifies that tests and mitigation must be performed by certified professionals under Chapter 136B.