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 residential settings, which is a known health risk. By implementing these passive mitigation methods, the legislation seeks to reduce the potential for radon accumulation in homes, thereby protecting residents from its harmful effects.