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MontanaHB 31269th Legislature, Regular Session (2025)HouseWALLET

Revise speed limit laws

Sponsored By: Jedediah Hinkle (Republican)

Signed by Governor

Motor VehiclesTraffic Regulations

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Bill Overview

Analyzed Economic Effects

3 provisions identified: 1 benefits, 1 costs, 1 mixed.

New Montana highway speed limits

The law sets clear speed limits by road and time of day. Interstates are 80 mph outside urbanized areas and 65 mph inside urbanized areas of 50,000 people or more. On national highways that are four lanes and at least 10 miles long, the limit is 75 mph in daytime and 70 mph at night. These higher four‑lane limits do not apply in permanent special speed zones. On other public highways, the limit is 70 mph in daytime and 65 mph at night. In urban districts, the limit is 25 mph. Daytime is from one‑half hour before sunrise to one‑half hour after sunset. Nighttime is all other hours.

Minor speeding not on your record

Small overages under this speed‑limit law are not crimes. If you are no more than 10 mph over in daytime or 5 mph at night, the ticket generally is not recorded and cannot be used to raise your insurance. This does not apply if you were going 90+ mph on an interstate, hold a commercial driver’s license, got the ticket in another state, or were in a special speed zone. No extra state surcharge applies to these violations.

Speeding ticket fines by mph over

Fines rise with how many mph you are over the limit. On interstates, 1–10 mph over is $40. On other highways and special‑speed zones, 1–10 mph over is $20. For all categories, 11–20 mph over is $70, 21–30 is $120, and 31+ is $200. These are one‑time fines per ticket.

Sponsors & Cosponsors

Sponsor

  • Jedediah Hinkle

    Republican • House

Cosponsors

  • Mary Ann Dunwell

    Democrat • Senate

Roll Call Votes

All Roll Calls

Yes: 241 • No: 57

Senate vote • 4/10/2025

Do Concur

Yes: 44 • No: 4

Senate vote • 4/8/2025

Do Concur

Yes: 43 • No: 7

House vote • 2/12/2025

Do Pass

Yes: 78 • No: 22

House vote • 2/11/2025

Do Pass

Yes: 76 • No: 24

Actions Timeline

  1. Chapter Number Assigned

    5/5/2025House

  2. Signed by Governor

    5/1/2025House

  3. Transmitted to Governor

    4/22/2025House

  4. Signed by President

    4/22/2025Senate

  5. Signed by Speaker

    4/18/2025House

  6. Returned from Enrolling

    4/11/2025House

  7. Sent to Enrolling

    4/10/2025House

  8. 3rd Reading

    4/10/2025Senate

  9. 2nd Reading

    4/8/2025Senate

  10. Committee Report

    3/20/2025Senate

  11. Committee Executive Action

    3/19/2025Senate

  12. Hearing

    2/20/2025Senate

  13. Referred to Committee

    2/18/2025Senate

  14. 1st Reading

    2/13/2025Senate

  15. Transmitted to Senate

    2/12/2025House

  16. 3rd Reading

    2/12/2025House

  17. 2nd Reading

    2/11/2025House

  18. Committee Report

    2/6/2025House

  19. Committee Executive Action

    2/5/2025House

  20. Committee Executive Action

    2/5/2025House

  21. Fiscal Note Printed

    2/3/2025House

  22. Fiscal Note Unsigned

    2/3/2025House

  23. Fiscal Note Received

    1/31/2025House

  24. Hearing

    1/30/2025House

  25. 1st Reading

    1/27/2025House

Bill Text

  • Enrolled

    4/15/2025

    PDF

  • As Amended (Version 2)

    2/6/2025

    PDF

  • Introduced

    1/24/2025

    PDF

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