---
type: "Bill"
title: "Revise laws relating to wind turbine generators"
description: "Revise laws relating to wind turbine generators"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2025"
identifier: "HB 939"
citation: "Montana HB 939 (2025)"
classification: ["bill"]
subjects: ["Energy", "Revenue", "State", "Utilities"]
status: "enacted"
primary_sponsors: ["Katie Zolnikov"]
version_count: 48
action_count: 48
vote_count: 11
first_action: "2024-11-04T14:03:14+00:00"
last_action: "2025-05-19T14:12:34+00:00"
source: "openstates"
source_identifier: "ocd-bill/123d0ed8-9cdc-41e8-9ef5-4f0ef480b166"
source_url: "https://bills.legmt.gov/#/laws/bill/2/LC0739?open_tab=sum"
source_hash: "d7c94c2a950178b4f0bc16c92d5ce7ba5c18b39a194d1ffbd3b9c82185bd65cf"
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 HB 939 (2025) — Revise laws relating to wind turbine generators

## Version chain

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

1. **HB0939.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311163)
2. **HB0939.001.001_Amendments-in-Context_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311369)
3. **HB0939.002.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313303)
4. **HB0939.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313302)
5. **HB0939_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=301412)
6. **HB0939_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305329)
7. **HB0939_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311364)
8. **HB0939_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312031)
9. **HB0939_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312034)
10. **HB0939_1(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312035)
11. **HB0939_1(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312036)
12. **HB0939_1(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312037)
13. **HB0939_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=301392)
14. **HB0939_2(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313547)
15. **HB0939_2(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313548)
16. **HB0939_2(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313549)
17. **HB0939_2(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313550)
18. **HB0939_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312072)
19. **HB0939_3(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313552)
20. **HB0939_3(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318395)
21. **HB0939_3(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318403)
22. **HB0939_3(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313553)
23. **HB0939_3(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313554)
24. **HB0939_3(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313559)
25. **HB0939_3(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313562)
26. **HB0939_3(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313567)
27. **HB0939_3(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313569)
28. **HB0939_3(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315361)
29. **HB0939_3(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318393)
30. **HB0939_3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313551)
31. **HB0939_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318397)
32. **HB0939_X(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319013)
33. **HB0939_X(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321008)
34. **HB0939_X(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=324445)
35. **HB0939_X(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325347)
36. **HB0939_X(14).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325348)
37. **HB0939_X(15).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325349)
38. **HB0939_X(16).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325978)
39. **HB0939_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318398)
40. **HB0939_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318404)
41. **HB0939_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318405)
42. **HB0939_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318999)
43. **HB0939_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319003)
44. **HB0939_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319004)
45. **HB0939_X(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319005)
46. **HB0939_X(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319012)
47. **HB0939_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318396)
48. **LC0739.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=301002)

## Votes

- ReconsAction -Zolnikov — **45–2** (pass) · upper
- Do Concur — **38–12** (pass) · upper
- do_pass — **13–1** (pass) · lower
- Do Concur — **100–0** (pass) · lower
- AMD-HB0939.002.001 Zolnikov D/PASS — **46–4** (pass) · upper
- Do Concur — **98–2** (pass) · lower
- be_concurred_in_as_amended — **13–0** (pass) · upper
- Do Pass — **98–2** (pass) · lower
- Do Pass — **97–1** (pass) · lower
- Do Concur — **41–8** (pass) · upper
- Do Concur As Amended — **39–11** (pass) · upper

## Sponsors

- Katie Zolnikov — primary (person)

## Timeline

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

- **2024-11-04T14:03:14+00:00** (LC) Drafter Assigned
- **2024-11-04T14:03:14+00:00** (LC) Draft On Hold
- **2025-03-28T19:52:29+00:00** (LC) Draft Taken Off Hold
- **2025-03-30T02:07:46+00:00** (LC) Draft in Legal Review
- **2025-03-30T12:27:28+00:00** (LC) Draft in Edit
- **2025-03-30T19:09:58+00:00** (LC) Draft in Input/Proofing
- **2025-03-30T19:26:48+00:00** (LC) Draft in Final Drafter Review
- **2025-03-30T19:43:05+00:00** (LC) Draft in Assembly
- **2025-03-31T15:06:15+00:00** (LC) Draft Ready for Delivery
- **2025-03-31T16:58:08+00:00** (LC) Draft Delivered to Requester
- **2025-03-31T17:16:20+00:00** (H) Introduced
- **2025-03-31T17:18:37+00:00** (H) Fiscal Note Requested
- **2025-03-31T17:18:46+00:00** (H) Referred to Committee - (H) Energy, Technology and Federal Relations `referral-committee`
- **2025-03-31T17:48:29+00:00** (H) Hearing - (H) Energy, Technology and Federal Relations
- **2025-03-31T19:11:39+00:00** (H) First Reading `reading-1`
- **2025-03-31T23:46:47+00:00** (H) Committee Executive Action--Bill Passed - (H) Energy, Technology and Federal Relations `committee-passage`
- **2025-04-02T23:37:00+00:00** (H) Committee Report--Bill Passed - (H) Energy, Technology and Federal Relations `committee-passage`
- **2025-04-04T15:54:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2025-04-05T14:55:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2025-04-05T15:45:59+00:00** (H) Transmitted to Senate
- **2025-04-07T15:07:01+00:00** (S) Referred to Committee - (S) Energy, Technology & Federal Relations `referral-committee`
- **2025-04-07T15:24:18+00:00** (H) Fiscal Note Received `receipt`
- **2025-04-07T19:13:37+00:00** (S) First Reading `reading-1`
- **2025-04-07T19:30:42+00:00** (S) Hearing Canceled - (S) Energy, Technology & Federal Relations
- **2025-04-07T19:32:05+00:00** (S) Hearing Canceled - (S) Energy, Technology & Federal Relations
- **2025-04-07T19:35:49+00:00** (S) Hearing - (S) Energy, Technology & Federal Relations
- **2025-04-08T17:34:41+00:00** (H) Fiscal Note Signed
- **2025-04-15T23:12:28+00:00** (S) Committee Executive Action--Bill Concurred as Amended - (S) Energy, Technology & Federal Relations
- **2025-04-16T19:24:00+00:00** (S) Committee Report--Bill Concurred as Amended - (S) Energy, Technology & Federal Relations
- **2025-04-17T23:30:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2025-04-18T01:26:00+00:00** (S) Reconsidered Previous Action; Placed on 2nd Reading `reading-2, reading-2`
- **2025-04-18T15:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2025-04-18T21:49:00+00:00** (S) 2nd Reading Motion to Amend Carried `reading-2`
- **2025-04-18T21:50:00+00:00** (S) 2nd Reading Concurred as Amended `reading-2, reading-2`
- **2025-04-23T15:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-04-23T21:04:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2025-04-23T23:15:49+00:00** (S) Returned to House with Amendments
- **2025-04-25T15:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2025-04-25T15:48:00+00:00** (H) 2nd Reading Senate Amendments Concurred `amendment-amendment, amendment-passage, reading-2, reading-2`
- **2025-04-28T17:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2025-04-28T17:50:00+00:00** (H) 3rd Reading Passed as Amended by Senate `passage, passage, reading-3, reading-3`
- **2025-04-28T19:01:52+00:00** (H) Sent to Enrolling
- **2025-04-29T21:54:15+00:00** (H) Returned from Enrolling
- **2025-05-02T16:15:20+00:00** (H) Signed by Speaker `passage`
- **2025-05-06T20:00:00+00:00** (S) Signed by President `passage`
- **2025-05-07T15:03:52+00:00** (H) Transmitted to Governor `executive-receipt`
- **2025-05-13T19:44:00+00:00** (H) Signed by Governor `executive-signature`
- **2025-05-19T14:12:34+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/123d0ed8-9cdc-41e8-9ef5-4f0ef480b166`. Confidence: reported (aggregated from official Montana legislature records).