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Montana law

Administrative Laws in Montana.

Montana administrative law is governed by the Montana Administrative Procedure Act (Mont. Code Ann. § 2-4-101 et seq.), which governs rulemaking, contested cases, and judicial review of state agency action. Agencies must publish proposed rules in the Montana Administrative Register and follow notice-and-comment procedures. Contested cases are heard by agency hearing officers or the Office of Administrative Hearings. Final agency decisions are reviewable in District Court under substantial-evidence and authorized-by-law standards.

Last verified: 2026-04-17

State law

Key Montana Statutes

Montana Administrative Procedure ActMont. Code Ann. § 2-4-101 et seq.

Governs agency rulemaking and contested cases. Requires notice of proposed rule, comment period, and fiscal note.

Judicial ReviewMont. Code Ann. § 2-4-701 et seq.

Final agency decisions are reviewable in District Court. Standard: whether the decision is supported by substantial evidence, within the agency's authority, and not arbitrary or capricious.

Montana Administrative RegisterMont. Code Ann. § 2-4-313

Official publication of proposed and adopted agency rules. All state agency rules must be filed with the Secretary of State and published in the Register.

State law

Official Sources

Not Legal Advice

This page summarizes publicly available statutes and rules for informational purposes only. It does not constitute legal advice, and no attorney-client relationship is created by viewing this content. Laws change — always verify with the primary source or consult a licensed attorney in Montana.

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