This bill mandates the inclusion of passive radon mitigation methods in the construction of new single-family and two-family residential buildings in Iowa. The state building code commissioner is tasked with adopting this requirement as part of the state building code. Importantly, this requirement will only apply to residential construction that begins after the adoption of the new regulation.

The bill aims to enhance public health and safety by addressing radon exposure in homes, which is a known health risk. By implementing these passive mitigation methods, the legislation seeks to ensure that new residential buildings are better equipped to prevent radon accumulation, thereby protecting future occupants from potential health hazards associated with radon exposure.