This legislation aims to establish two new offices within the Environmental Protection Agency (EPA) focused on managing cleanup efforts at abandoned mine sites, particularly those contaminated by uranium mining on the Navajo Nation. The primary goal is to enhance coordination among federal agencies, state governments, local communities, and tribal authorities to ensure effective cleanup and management of these hazardous sites. Key provisions include the creation of the Office of Mountains, Deserts, and Plains, which will be led by a director appointed by the EPA Administrator.