Final rule · 2026-17055

Montana Regulatory Program

The Office of Surface Mining Reclamation and Enforcement (OSM) is not approving, with one exception, an amendment to the Montana regulatory program under the Surface Mining Control and Reclamation Act of 1977 (SMCRA or the Act). The Montana legislature, specifically Montana House Bill 328, proposes to add a definition of affected drainage basin to the Montana Code Annotated (MCA). Additionally, House Bill 328 proposes changes to the Montana Code Annotated, pertaining to bond release application requirements.