Modifies financial requirements of the radioactive waste investigation fund

HB 290 creates the "Radioactive Waste Investigation Fund" in Missouri's state treasury, managed by the state treasurer. The fund allows the Department of Natural Resources to investigate local concerns about radioactive waste contamination, using scientific methods, after receiving written requests from local governments with specific area details and supporting documentation. It limits annual spending to $150,000 per fiscal year, with unused funds reverting to the hazardous waste fund, and requires the department to report results publicly within 45 days of completing investigations. This directly affects local governments seeking to address potential radioactive contamination and the Department of Natural Resources, which administers the fund and conducts investigations.