Revise review panel for tailings plans

This bill revises Montana laws governing the independent review panel for metal mine tailings impoundment plans, directly affecting mining companies and the state Department of Environmental Quality. It updates definitions related to mining operations, tailings storage facilities, and engineering roles, while establishing clearer criteria for panel members who must be recognized experts in tailings facility design, construction, operation, and closure. The legislation also mandates written reports from review panels and grants rulemaking authority to ensure consistent oversight of tailings storage facility safety and compliance.