2026-17821RuleWallet

Montana Mining Regs Get Oopsie Correction from Feds

Published Date: 9/1/2026

Rule

Summary

The Office of Surface Mining Reclamation and Enforcement (OSM) published a document in the Federal Register on August 21, 2026, not approving, with one exception, an amendment to the Montana regulatory program under the Surface Mining Control and Reclamation Act of 1977 (SMCRA). OSM made an error in the document by adding an entry to 30 CFR 926.12 at paragraph (c), a paragraph that already existed. This document corrects the final regulation.

Analyzed Economic Effects

2 provisions identified: 0 benefits, 2 costs, 0 mixed.

Bond release and operator-responsibility changes blocked

OSM did not approve several proposed changes to MCA Sec. 82-4-232 submitted in the February 16, 2023 amendment (Administrative Record No. MT-041-01). The specific items not approved include: striking the words "if it is satisfied" from MCA Sec. 82-4-232(6)(k); proposed revisions to MCA Sec. 82-4-232(6)(k)(ii) and (k)(iii); addition of subpart "C" language in MCA Sec. 82-4-232(6)(k)(iv) that could have allowed final bond release via the phased bond release process; and changes to MCA Sec. 82-4-232(6)(k)(v) that would have removed the period specified for operator responsibility. The correction to the final rule is effective September 21, 2026.

Montana mining definitions not adopted

You are affected if you operate or plan mining activity in Montana: OSM did not approve Montana's proposed definition of "affected drainage basin" in MCA Sec. 82-4-203(3) and did not approve the package of proposed definition recodifications in MCA Sec. 82-4-203 (including entries numbered (4)(a) through (59)) that were submitted in the program amendment letter dated February 16, 2023 (Administrative Record No. MT-041-01). Those proposed definition changes will not take effect under the Montana program.

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Key Dates

Published Date
Rule Effective
9/1/2026
9/21/2026

Department and Agencies

Department
Independent Agency
Agency
Interior Department
Surface Mining Reclamation and Enforcement Office
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