---
type: "Bill"
title: "Provide for legislative intent regarding streamflow information"
description: "Provide for legislative intent regarding streamflow information"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2025"
identifier: "SB 55"
citation: "Montana SB 55 (2025)"
classification: ["bill"]
subjects: ["Water"]
status: "enacted"
primary_sponsors: ["Willis Curdy"]
version_count: 29
action_count: 36
vote_count: 6
first_action: "2024-10-08T20:00:31+00:00"
last_action: "2025-04-04T00:45:32+00:00"
source: "openstates"
source_identifier: "ocd-bill/8f810268-f229-4547-86d5-c7ebd3b48588"
source_url: "https://bills.legmt.gov/#/laws/bill/2/LC0551?open_tab=sum"
source_hash: "1e3597221e11686feeeea39421135f111b595ebad9d975093e04657f2ae35ec4"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-mt"]
---

# Montana SB 55 (2025) — Provide for legislative intent regarding streamflow information

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **LC0551.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=266627)
2. **SB0055_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=273947)
3. **SB0055_1(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284900)
4. **SB0055_1(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=296491)
5. **SB0055_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=275491)
6. **SB0055_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=276537)
7. **SB0055_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=282637)
8. **SB0055_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284804)
9. **SB0055_1(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284805)
10. **SB0055_1(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284807)
11. **SB0055_1(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284808)
12. **SB0055_1(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284899)
13. **SB0055_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=269330)
14. **SB0055_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=296490)
15. **SB0055_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=296493)
16. **SB0055_X(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=316671)
17. **SB0055_X(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=320256)
18. **SB0055_X(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=324122)
19. **SB0055_X(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325860)
20. **SB0055_X(14).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=327363)
21. **SB0055_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=296494)
22. **SB0055_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=296535)
23. **SB0055_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=296539)
24. **SB0055_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=296540)
25. **SB0055_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305187)
26. **SB0055_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305188)
27. **SB0055_X(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305189)
28. **SB0055_X(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310733)
29. **SB0055_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=296492)

## Votes

- Do Concur — **85–13** (pass) · lower
- Do Pass — **29–21** (pass) · upper
- Do Concur — **89–11** (pass) · lower
- be_concurred_in — **12–2** (pass) · lower
- do_pass — **11–0** (pass) · upper
- Do Pass — **30–20** (pass) · upper

## Sponsors

- Willis Curdy — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2024-10-08T20:00:31+00:00** (LC) Drafter Assigned
- **2024-11-25T21:57:52+00:00** (LC) Draft in Legal Review
- **2024-11-25T22:20:01+00:00** (LC) Draft in Edit
- **2024-12-02T16:30:44+00:00** (LC) Draft in Input/Proofing
- **2024-12-03T15:58:09+00:00** (LC) Draft in Final Drafter Review
- **2024-12-04T18:54:26+00:00** (LC) Draft in Assembly
- **2024-12-05T17:09:09+00:00** (LC) Draft Ready for Delivery
- **2024-12-16T18:13:44+00:00** (LC) Draft Delivered to Requester
- **2024-12-18T23:49:00+00:00** (S) Introduced
- **2025-01-06T21:45:00+00:00** (S) First Reading `reading-1`
- **2025-01-07T21:49:00+00:00** (S) Referred to Committee - (S) Natural Resources `referral-committee`
- **2025-01-10T17:48:03+00:00** (S) Hearing - (S) Natural Resources
- **2025-01-15T23:06:39+00:00** (S) Committee Executive Action--Bill Passed - (S) Natural Resources `committee-passage`
- **2025-01-16T20:11:00+00:00** (S) Committee Report--Bill Passed - (S) Natural Resources `committee-passage`
- **2025-01-22T20:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2025-01-22T20:50:00+00:00** (S) 2nd Reading Passed `reading-2, reading-2`
- **2025-01-23T20:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-01-23T21:19:00+00:00** (S) 3rd Reading Passed `passage, reading-3`
- **2025-01-23T22:10:48+00:00** (S) Transmitted to House
- **2025-01-24T18:26:17+00:00** (H) Referred to Committee - (H) Natural Resources `referral-committee`
- **2025-01-24T20:13:01+00:00** (H) First Reading `reading-1`
- **2025-02-05T22:59:13+00:00** (H) Hearing Canceled - (H) Natural Resources
- **2025-02-10T20:05:52+00:00** (H) Hearing - (H) Natural Resources
- **2025-02-14T21:43:00+00:00** (H) Committee Executive Action--Bill Concurred - (H) Natural Resources
- **2025-02-17T20:31:00+00:00** (H) Committee Report--Bill Concurred - (H) Natural Resources
- **2025-03-19T19:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2025-03-19T20:14:00+00:00** (H) 2nd Reading Concurred `reading-2, reading-2`
- **2025-03-20T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2025-03-20T21:57:00+00:00** (H) 3rd Reading Concurred `passage, reading-3`
- **2025-03-20T21:58:28+00:00** (S) Sent to Enrolling
- **2025-03-21T16:37:19+00:00** (S) Returned from Enrolling
- **2025-03-26T15:15:42+00:00** (S) Signed by President `passage`
- **2025-03-27T18:20:37+00:00** (H) Signed by Speaker `passage`
- **2025-03-27T21:34:54+00:00** (S) Transmitted to Governor `executive-receipt`
- **2025-04-03T18:00:42+00:00** (S) Signed by Governor `executive-signature`
- **2025-04-04T00:45:32+00:00** Chapter Number Assigned `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/8f810268-f229-4547-86d5-c7ebd3b48588`. Confidence: reported (aggregated from official Montana legislature records).