Legacy Mine Cleanup Act of 2025

The Legacy Mine Cleanup Act of 2025 establishes a new Office of Mountains, Deserts, and Plains within the EPA to coordinate cleanup efforts at abandoned hardrock mine sites across federal, tribal, state, and private lands. It requires the EPA to annually prioritize mine sites for cleanup, develop interagency plans for Navajo Nation uranium mine sites by 2028 (including funding targets and agency roles), and coordinate with Tribal governments on government-to-government consultations. The bill mandates sharing best practices for cleanup technologies, waste solutions, and small business contracting opportunities, while ensuring coordination with agencies like the Department of Energy and Interior. It uses existing EPA authorities without creating new regulations or standards, focusing on improving coordination rather than altering cleanup requirements.