---
type: "Bill"
title: "Revise campaign finance laws"
description: "Revise campaign finance laws"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2025"
identifier: "HB 917"
citation: "Montana HB 917 (2025)"
classification: ["bill"]
subjects: ["Appropriations", "Elections"]
status: "enacted"
primary_sponsors: ["Eric Tilleman"]
version_count: 18
action_count: 45
vote_count: 6
first_action: "2024-12-08T02:06:16+00:00"
last_action: "2025-05-19T13:39:16+00:00"
source: "openstates"
source_identifier: "ocd-bill/48b95247-c89a-41e7-b72a-46834615f1e1"
source_url: "https://bills.legmt.gov/#/laws/bill/2/LC2335?open_tab=sum"
source_hash: "ba8f617b9779ddbdbb9216c4381db52f9c9254cea87f12ea30a25b203c175458"
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 917 (2025) — Revise campaign finance laws

## Version chain

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

1. **HB0917_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=306575)
2. **HB0917_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315385)
3. **HB0917_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318728)
4. **HB0917_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318729)
5. **HB0917_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=300451)
6. **HB0917_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318732)
7. **HB0917_X(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=326563)
8. **HB0917_X(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=327691)
9. **HB0917_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318733)
10. **HB0917_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319037)
11. **HB0917_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319038)
12. **HB0917_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321012)
13. **HB0917_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=324447)
14. **HB0917_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325323)
15. **HB0917_X(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325324)
16. **HB0917_X(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325325)
17. **HB0917_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318730)
18. **LC2335.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297396)

## Votes

- Do Pass — **57–43** (pass) · lower
- be_concurred_in — **9–0** (pass) · upper
- do_pass — **16–3** (pass) · lower
- Do Pass — **59–38** (pass) · lower
- Do Concur — **49–0** (pass) · upper
- Do Concur — **49–0** (pass) · upper

## Sponsors

- Eric Tilleman — primary (person)

## Timeline

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

- **2024-12-08T02:06:16+00:00** (LC) Drafter Assigned
- **2025-02-19T18:41:10+00:00** (LC) Draft On Hold
- **2025-03-19T16:07:00+00:00** (LC) Draft Taken Off Hold
- **2025-03-21T19:09:43+00:00** (LC) Draft in Legal Review
- **2025-03-21T22:05:35+00:00** (LC) Draft in Edit
- **2025-03-24T15:45:46+00:00** (LC) Draft in Input/Proofing
- **2025-03-24T19:33:34+00:00** (LC) Draft in Final Drafter Review
- **2025-03-24T20:34:54+00:00** (LC) Draft in Assembly
- **2025-03-25T14:40:51+00:00** (LC) Draft Ready for Delivery
- **2025-03-25T19:53:11+00:00** (LC) Drafter Assigned
- **2025-03-25T19:58:35+00:00** (LC) Draft in Legal Review
- **2025-03-25T20:24:08+00:00** (LC) Draft in Edit
- **2025-03-26T14:07:19+00:00** (LC) Draft in Input/Proofing
- **2025-03-26T19:17:34+00:00** (LC) Draft in Final Drafter Review
- **2025-03-26T20:03:21+00:00** (LC) Draft in Assembly
- **2025-03-26T21:04:12+00:00** (LC) Draft Ready for Delivery
- **2025-03-27T22:51:22+00:00** (LC) Draft Delivered to Requester
- **2025-03-28T21:32:02+00:00** (H) Introduced
- **2025-03-29T14:16:41+00:00** (H) Referred to Committee - (H) State Administration `referral-committee`
- **2025-03-29T15:06:03+00:00** (H) First Reading `reading-1`
- **2025-03-29T17:21:17+00:00** (H) Hearing - (H) State Administration
- **2025-03-31T19:36:24+00:00** (H) Hearing - (H) State Administration
- **2025-04-01T18:09:25+00:00** (H) Committee Executive Action--Bill Passed - (H) State Administration `committee-passage`
- **2025-04-01T20:45:00+00:00** (H) Committee Report--Bill Passed - (H) State Administration `committee-passage`
- **2025-04-07T19:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2025-04-07T22:36:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2025-04-08T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2025-04-08T19:38:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2025-04-08T20:44:11+00:00** (H) Transmitted to Senate
- **2025-04-09T19:59:33+00:00** (S) First Reading `reading-1`
- **2025-04-10T16:21:11+00:00** (S) Referred to Committee - (S) State Administration `referral-committee`
- **2025-04-17T17:10:00+00:00** (S) Hearing - (S) State Administration
- **2025-04-23T22:48:58+00:00** (S) Committee Executive Action--Bill Concurred - (S) State Administration
- **2025-04-24T19:18:00+00:00** (S) Committee Report--Bill Concurred - (S) State Administration
- **2025-04-25T15:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2025-04-25T15:41:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2025-04-28T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-04-28T21:42:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2025-04-28T21:42:55+00:00** (H) Sent to Enrolling
- **2025-04-29T22:53:16+00:00** (H) Returned from Enrolling
- **2025-05-02T16:15:20+00:00** (H) Signed by Speaker `passage`
- **2025-05-06T20:00:07+00:00** (S) Signed by President `passage`
- **2025-05-07T15:03:52+00:00** (H) Transmitted to Governor `executive-receipt`
- **2025-05-13T19:41:00+00:00** (H) Signed by Governor `executive-signature`
- **2025-05-19T13:39:16+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/48b95247-c89a-41e7-b72a-46834615f1e1`. Confidence: reported (aggregated from official Montana legislature records).