MontanaSB 12169th Legislature, Regular Session (2025)Senate

Revise the land use and planning act

Sponsored By: Forrest Mandeville (Republican)

Signed by Governor

CountiesLocal GovernmentPlanningPropertyCities and Towns

Personalized for You

How does this bill affect your finances?

Personalize government policy and PRIA will tell you what this bill means for your household, plus every other piece of legislation we track. PRIA reads each provision against your financial profile to show you exactly what matters to your wallet.

Bill Overview

Analyzed Economic Effects

8 provisions identified: 2 benefits, 0 costs, 6 mixed.

Stronger public voice in land use

Local governments must offer continuous public participation on land use plans and rules. They must share drafts, take written and spoken comments, hold noticed public meetings, post materials and comments online, and respond in writing. They must keep records of outreach following the Secretary of State’s retention schedule. The Department of Commerce provides a list of public‑participation methods and best practices. An agency meets notice rules if it adopts and uses the required public participation plan.

Faster permit reviews and decisions

After you file a complete application, the planning administrator checks for “substantial compliance” with local rules, looking at the whole plan. If it passes, the law requires a 15-business-day written public comment period and then a written decision. If comments show problems, the administrator can require more data and run a second 15-business-day comment period limited to those issues. Projects that meet all objective standards get a ministerial permit without discretion, issued by the administrator or designee. Decisions on development applications count as agency actions, and if your project does not comply, you can apply to amend the zoning.

Zoning limits building in hazard areas

Local zoning must mark places where building may be denied for unmitigable hazards, not enough water, bad drainage or access, weak services, or high public cost. Building is banned in those areas unless approved mitigation removes the hazard. Approved mitigation cannot rely on building rules unless listed by the Department of Labor and Industry under 50-60-901. Zoning must also address the 100-year floodway and other flood-prone areas by requiring mitigation or limiting or banning future building there. Existing lawful uses may continue unless the use changes or is later abandoned.

Planning commissions get clear roles

Local governments can form or join regional planning commissions, and some existing boards can count as commissions. City‑county board participation may continue. Commissions must have an odd number of voting members (at least three), meet at least every six months, keep open meetings and records, and follow quorum and voting rules. They review plans, maps, and rules and serve as the local appeal body. Commissions may be funded under 76-1-403, 76-1-404, and 76-1-406.

Clearer subdivision exemptions and utilities proof

The law clarifies which land splits are exempt from subdivision review and bars using exemptions to evade review. Before final plat approval, the certifying authority must confirm stormwater and needed municipal facilities will be provided. Required facilities must be provided on the timetable the governing body sets. A municipality may act as the reviewing authority and may self‑approve its exemption.

Two-step local appeals before court

You can appeal a final administrative land use decision to the planning commission within 15 business days. You can then appeal the commission’s final decision to the governing body within 15 business days. You must finish these appeals before going to district court. You must file in district court within 30 calendar days, and decisions are upheld unless arbitrary, capricious, or unlawful.

Immediate effect and special procedures

The law takes effect on passage and approval. Title 2, chapter 4 procedures do not apply to this land use chapter. Agencies must follow the procedures set in this act instead.

Cities plan annexation and edge rules

Cities must zone areas they expect to annex in the next 20 years. Those outside-city zoning rules are not enforced until annexation unless jurisdictions agree. Annexations must match an adopted growth policy or land use plan. Cities can extend zoning and subdivision rules outside city limits if they have an adopted plan, but that power ends when the county adopts its own rules. Sections that set certain extraterritorial limits end June 30, 2027.

Sponsors & Cosponsors

Sponsor

  • Forrest Mandeville

    Republican • Senate

Cosponsors

There are no cosponsors for this bill.

Roll Call Votes

All Roll Calls

Yes: 392 • No: 5

Senate vote • 4/15/2025

Do Pass

Yes: 50 • No: 0

Senate vote • 4/14/2025

Do Pass

Yes: 44 • No: 4

House vote • 4/11/2025

Do Concur

Yes: 99 • No: 1

House vote • 4/11/2025

Do Concur

Yes: 99 • No: 0

Senate vote • 2/14/2025

Do Pass

Yes: 50 • No: 0

Senate vote • 2/13/2025

Do Pass

Yes: 50 • No: 0

Actions Timeline

  1. Chapter Number Assigned

    5/13/2025Senate
  2. Signed by Governor

    5/8/2025Senate
  3. Transmitted to Governor

    5/1/2025Senate
  4. Signed by Speaker

    5/1/2025House
  5. Signed by President

    4/22/2025Senate
  6. Returned from Enrolling

    4/16/2025Senate
  7. Sent to Enrolling

    4/15/2025Senate
  8. 3rd Reading House Amendments

    4/15/2025Senate
  9. 2nd Reading House Amendments

    4/14/2025Senate
  10. Returned to Senate with Amendments

    4/11/2025House
  11. 3rd Reading

    4/11/2025House
  12. 2nd Reading

    4/11/2025House
  13. Committee Report

    4/9/2025House
  14. Committee Executive Action

    4/8/2025House
  15. Hearing

    3/7/2025House
  16. 1st Reading

    2/17/2025House
  17. Referred to Committee

    2/17/2025House
  18. Transmitted to House

    2/14/2025Senate
  19. 3rd Reading

    2/14/2025Senate
  20. 2nd Reading

    2/13/2025Senate
  21. Committee Report

    2/11/2025Senate
  22. Committee Executive Action

    2/10/2025Senate
  23. Hearing

    1/15/2025Senate
  24. Referred to Committee

    1/13/2025Senate
  25. 1st Reading

    1/10/2025Senate

Bill Text

  • Enrolled

    4/15/2025

  • As Amended (Version 3)

    4/9/2025

  • As Amended (Version 2)

    2/11/2025

  • Introduced

    1/10/2025

Related Bills

Back to State Legislation