HB 1231

This bill modifies Missouri's property disclosure requirements to strengthen protections for tenants and buyers regarding radioactive or hazardous material contamination. The legislation expands the definition of "knowledge" that triggers mandatory disclosure from requiring an affirmative report to including any written or electronic communication from a government agency about contamination, making it harder for property owners to claim ignorance. Additionally, the bill introduces new requirements for owners to disclose when government agencies request property testing for hazardous materials, and mandates that government agencies notify current residents within 30 days when contamination is discovered. Failure to disclose known contamination remains a Class A misdemeanor, and tenants can terminate leases without penalty if landlords fail to disclose such information.