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MontanaSB 36569th Legislature, Regular Session (2025)Senate

Revise siltation structure capacity at mines

Sponsored By: Barry Usher (Republican)

Became Law

Mining and MineralsWaterRule Making

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Bill Overview

Analyzed Economic Effects

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

Stronger mine cleanup to protect homes

The law strengthens cleanup rules at permitted mines. Operators must reclaim and replant disturbed land; tunnels and shafts are excluded. Each permit or major change must include a detailed reclamation plan. Plans must cover grading, backfilling, subsidence and water control, and topsoiling, and prevent damage to landowners and streams. The Department of Environmental Quality checks plans for completeness and for meeting air, water, health, and safety laws.

Sponsors & Cosponsors

Sponsor

  • Barry Usher

    Republican • Senate

Cosponsors

  • Jedediah Hinkle

    Republican • House

Roll Call Votes

All Roll Calls

Yes: 291 • No: 5

Senate vote • 3/31/2025

Do Concur

Yes: 99 • No: 0

Senate vote • 3/29/2025

Do Concur

Yes: 97 • No: 0

Senate vote • 3/6/2025

Do Pass

Yes: 47 • No: 3

Senate vote • 3/5/2025

Do Pass

Yes: 48 • No: 2

Actions Timeline

  1. Chapter Number Assigned

    4/18/2025Senate

  2. Signed by Governor

    4/17/2025Senate

  3. Transmitted to Governor

    4/8/2025Senate

  4. Signed by Speaker

    4/8/2025House

  5. Signed by President

    4/7/2025Senate

  6. Returned from Enrolling

    4/2/2025Senate

  7. Sent to Enrolling

    3/31/2025Senate

  8. 3rd Reading Concurred

    3/31/2025House

  9. 2nd Reading Concurred

    3/29/2025House

  10. Committee Report--Bill Concurred

    3/24/2025House

  11. Committee Executive Action--Bill Concurred

    3/21/2025House

  12. Hearing

    3/19/2025House

  13. First Reading

    3/17/2025House

  14. Referred to Committee

    3/7/2025House

  15. Transmitted to House

    3/6/2025Senate

  16. 3rd Reading Passed

    3/6/2025Senate

  17. 2nd Reading Passed

    3/5/2025Senate

  18. Committee Report--Bill Passed as Amended

    3/1/2025Senate

  19. Committee Executive Action--Bill Passed as Amended

    2/28/2025Senate

  20. Hearing

    2/21/2025Senate

  21. Referred to Committee

    2/21/2025Senate

  22. First Reading

    2/19/2025Senate

  23. Introduced

    2/19/2025Senate

Bill Text

  • Enrolled

    4/1/2025

    PDF

  • As Amended (Version 2)

    3/1/2025

    PDF

  • Introduced

    2/19/2025

    PDF

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