Rule lifecycle · DOCKET:S2D2S SS08011000 SX064A000 25XS501520
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
The Interior Department is updating Montana's mining rules to require companies to restore the land and soil after they finish mining for coal, metals, or other resources. If your business owns a mine in Montana, works in mining, or provides services to mining operations, you need to follow these updated restoration rules starting September 24.
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