# Montana SB 61: Revise laws related to considerations for measuring of streamflow

Montana SB 61, Revise laws related to considerations for measuring of streamflow, is a 69th Legislature, Regular Session (2025) Senate bill sponsored by Bruce "Butch" Gillespie (Republican); status signed, last action 2025-02-27 (Chapter Number Assigned) (as of 2026-10-12).

- Canonical: https://policyrisk.com/state-bill/MT-SB61-2025
- As of: 2026-10-12
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Montana SB 61
- State: Montana
- Session: 69th Legislature, Regular Session (2025)
- Title: Revise laws related to considerations for measuring of streamflow
- Status: signed
- Chamber: Senate
- Introduced: 2024-12-16
- Last action: 2025-02-27, Chapter Number Assigned
- Sponsor: Bruce "Butch" Gillespie (Republican)
- Cosponsors: 1
- Subjects: Water
- Touches household money: no
- Roll calls: 4 (242 yes, 55 no in all)
- Economic provisions PRIA read: 0

## Summary

No summary available.

## Bill overview

No economic impacts identified for this bill.

## Sponsors and cosponsors

- Sponsor: Bruce "Butch" Gillespie (Republican), Senate
- Cosponsor: Jill Cohenour (Democrat), House

## Roll call votes

| Date | Chamber | Motion | Result | Yes | No | Other |
| --- | --- | --- | --- | --- | --- | --- |
| 2025-02-18 | House | Do Concur | pass | 88 | 11 |   |
| 2025-02-14 | House | Do Concur | pass | 92 | 7 |   |
| 2025-01-20 | Senate | Do Pass | pass | 28 | 21 |   |
| 2025-01-17 | Senate | Do Pass | pass | 34 | 16 |   |

## Actions (23)

- 2025-02-27: Chapter Number Assigned (Senate)
- 2025-02-27: Signed by Governor (Senate)
- 2025-02-21: Transmitted to Governor (Senate)
- 2025-02-20: Signed by Speaker (House)
- 2025-02-20: Signed by President (Senate)
- 2025-02-20: Returned from Enrolling (Senate)
- 2025-02-18: Sent to Enrolling (Senate)
- 2025-02-18: 3rd Reading (House)
- 2025-02-14: 2nd Reading (House)
- 2025-02-03: Committee Report (House)
- 2025-01-31: Committee Executive Action (House)
- 2025-01-24: Hearing (House)
- 2025-01-21: 1st Reading (House)
- 2025-01-21: Referred to Committee (House)
- 2025-01-21: Transmitted to House (Senate)
- 2025-01-20: 3rd Reading (Senate)
- 2025-01-17: 2nd Reading (Senate)
- 2025-01-16: Committee Report (Senate)
- 2025-01-15: Committee Executive Action (Senate)
- 2025-01-10: Hearing (Senate)
- 2025-01-07: Referred to Committee (Senate)
- 2025-01-06: 1st Reading (Senate)
- 2024-12-16: Introduced (Senate)

## Bill text

- Enrolled, 2025-03-14: [PDF](https://docs.legmt.gov/download-ticket?ticketId=d3e5b49f-7cfc-466a-93b3-d2316ffea3bf)
- As Amended (Version 2), 2025-02-19: [PDF](https://docs.legmt.gov/download-ticket?ticketId=06640190-359e-43ad-adbe-5d35bebc5a50)
- Introduced, 2024-12-16: [PDF](https://docs.legmt.gov/download-ticket?ticketId=c7ed8cce-7c05-45dd-943d-4e69e0634c0b)

## Related bills

- SB 437: Revise definition of sex in Montana law (signed)
- HB 831: Increase elderly homeowner and renter income tax credit (vetoed)
- HB 628: Revise early literacy targeted intervention laws (vetoed)
- SB 410: Provide for Montana genomic security act (vetoed)
- SB 424: Revising the disabled veteran property tax assistance program (vetoed)
- SB 422: Generally revise laws relating to insurance coverage relating to cancer (vetoed)

## Sources
- [Enrolled (PDF)](https://docs.legmt.gov/download-ticket?ticketId=d3e5b49f-7cfc-466a-93b3-d2316ffea3bf)
- [As Amended (Version 2) (PDF)](https://docs.legmt.gov/download-ticket?ticketId=06640190-359e-43ad-adbe-5d35bebc5a50)
- [Introduced (PDF)](https://docs.legmt.gov/download-ticket?ticketId=c7ed8cce-7c05-45dd-943d-4e69e0634c0b)

## Related
- [SB 437: Revise definition of sex in Montana law](https://policyrisk.com/state-bill/MT-SB437-2025)
- [HB 831: Increase elderly homeowner and renter income tax credit](https://policyrisk.com/state-bill/MT-HB831-2025)
- [HB 628: Revise early literacy targeted intervention laws](https://policyrisk.com/state-bill/MT-HB628-2025)
- [SB 410: Provide for Montana genomic security act](https://policyrisk.com/state-bill/MT-SB410-2025)
- [SB 424: Revising the disabled veteran property tax assistance program](https://policyrisk.com/state-bill/MT-SB424-2025)
- [SB 422: Generally revise laws relating to insurance coverage relating to cancer](https://policyrisk.com/state-bill/MT-SB422-2025)
- [Montana bills](https://policyrisk.com/states/montana/bills)
- [Montana state hub](https://policyrisk.com/states/montana)
- [All state legislation](https://policyrisk.com/state-bills)

Source: PRIA, https://policyrisk.com/state-bill/MT-SB61-2025 (as of 2026-10-12).