This bill directs the Environmental Protection Agency (EPA) to revise its regulations regarding the distribution and use of phosphogypsum. Congress finds that the EPA has prohibited phosphogypsum in road construction since 1992 due to its radioactive content, which poses an unacceptable risk of cancer and environmental contamination through leaching into water and resuspension into air. The EPA previously determined that any alternative use must meet a protective threshold of 9.1 in 100,000 for lifetime cancer risk, and that categorical approvals are not permissible. The legislation mandates that within two years, the EPA Administrator must finalize a rule requiring comprehensive assessments for any new proposed uses of phosphogypsum not already specified in existing regulations. These assessments must detail the maximum individual risk , measures to minimize exposure for workers and residents, and a monitoring program for potential surface and groundwater contamination. Any approval for new uses must be determined on a case-by-case basis , adhere to a maximum individual risk limit of 9.1 in 100,000, and all request details and testing results must be made publicly available on the EPA's website.