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MontanaSB 50869th Legislature, Regular Session (2025)Senate

Generally revise driving under the influence laws for THC levels in drivers under 21

Sponsored By: Willis Curdy (Democrat)

Signed by Governor

AlcoholLaw EnforcementMotor Vehicles

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Bill Overview

Analyzed Economic Effects

1 provisions identified: 0 benefits, 1 costs, 0 mixed.

Under-21 drivers: any THC equals DUI

In Montana, if you are under 21, any detectable THC means you are driving under the influence. Inactive THC metabolites do not count. Testing can be by blood or another bodily substance. This applies when you drive or are in actual physical control of a vehicle.

Sponsors & Cosponsors

Sponsor

  • Willis Curdy

    Democrat • Senate

Cosponsors

  • Steven Kelly

    Republican • House

Roll Call Votes

All Roll Calls

Yes: 209 • No: 89

House vote • 4/11/2025

Do Concur

Yes: 61 • No: 39

House vote • 4/11/2025

Do Concur

Yes: 62 • No: 37

Senate vote • 3/6/2025

Do Pass

Yes: 44 • No: 6

Senate vote • 3/6/2025

Do Pass

Yes: 42 • No: 7

Actions Timeline

  1. Chapter Number Assigned

    5/8/2025Senate

  2. Signed by Governor

    5/5/2025Senate

  3. Transmitted to Governor

    4/25/2025Senate

  4. Signed by Speaker

    4/25/2025House

  5. Signed by President

    4/21/2025Senate

  6. Returned from Enrolling

    4/14/2025Senate

  7. Sent to Enrolling

    4/11/2025Senate

  8. 3rd Reading

    4/11/2025House

  9. 2nd Reading

    4/11/2025House

  10. Committee Report

    4/9/2025House

  11. Committee Executive Action

    4/9/2025House

  12. Hearing

    4/7/2025House

  13. 1st Reading

    3/17/2025House

  14. Referred to Committee

    3/17/2025House

  15. Transmitted to House

    3/7/2025Senate

  16. 3rd Reading

    3/6/2025Senate

  17. 2nd Reading

    3/6/2025Senate

  18. Committee Report

    3/4/2025Senate

  19. Committee Executive Action

    3/3/2025Senate

  20. Hearing

    3/3/2025Senate

  21. Referred to Committee

    2/26/2025Senate

  22. 1st Reading

    2/26/2025Senate

  23. Introduced

    2/25/2025Senate

Bill Text

  • Enrolled

    4/15/2025

    PDF

  • Introduced

    2/25/2025

    PDF

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