Rule lifecycle · DOCKET:S1D1S SS08011000 SX064A000 256S180110
Montana Regulatory Program
Interior Department, Surface Mining Reclamation and Enforcement Office — observed across 4 documents over 110 days. Use the source documents below before deciding whether this affects your business.
In plain English
Montana's regulatory program for surface mining operations is now finalized, establishing requirements for how mining companies must operate and restore mined land throughout the state. Mining businesses in Montana should review these new standards carefully and make sure their operations comply with all requirements before the September 24, 2026 effective date.
First seen
May 7, 2026
Last seen
Aug 25, 2026
Latest stage
Rule
PRORULE → RULE
69d
Effective on
Thursday, September 24, 2026
Stage timeline
Proposed·May 7, 2026·91 FR 24761
Utah Regulatory Program
comments close Jun 8, 2026#2026-09024
Final·Jul 15, 2026·91 FR 43328
Montana Regulatory Program
effective Aug 14, 2026#2026-14245
Final·Jul 15, 2026·91 FR 43323
Montana Regulatory Program
effective Aug 14, 2026#2026-14244
Final·Aug 25, 2026·91 FR 54803
Montana Regulatory Program
effective Sep 24, 2026#2026-17333