---
type: "Bill"
title: "Revise laws related to legislative rules"
description: "Revise laws related to legislative rules"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2025"
identifier: "HB 531"
citation: "Montana HB 531 (2025)"
classification: ["bill"]
subjects: ["Legislature"]
status: "enacted"
primary_sponsors: ["Steve Fitzpatrick"]
version_count: 38
action_count: 35
vote_count: 6
first_action: "2024-10-21T14:23:09+00:00"
last_action: "2025-05-05T16:47:39+00:00"
source: "openstates"
source_identifier: "ocd-bill/67552d0d-4d8a-42df-aed5-1eca3513b3b7"
source_url: "https://bills.legmt.gov/#/laws/bill/2/LC0596?open_tab=sum"
source_hash: "c52bb9ccb125d02b585f62ce578ff5060015ba17df17b734017c798f7b12bb2f"
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 531 (2025) — Revise laws related to legislative rules

## Version chain

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

1. **HB0531.001.001._Amendments-in-Context_final-not condensedpdf(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287025)
2. **HB0531.001.001._Amendments-in-Context_final-not condensedpdf.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287024)
3. **HB0531.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287023)
4. **HB0531_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=283714)
5. **HB0531_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287636)
6. **HB0531_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287637)
7. **HB0531_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287638)
8. **HB0531_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287639)
9. **HB0531_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=283469)
10. **HB0531_2(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287642)
11. **HB0531_2(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297471)
12. **HB0531_2(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=308319)
13. **HB0531_2(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=308322)
14. **HB0531_2(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287643)
15. **HB0531_2(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287644)
16. **HB0531_2(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287691)
17. **HB0531_2(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287700)
18. **HB0531_2(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287701)
19. **HB0531_2(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287718)
20. **HB0531_2(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293830)
21. **HB0531_2(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293973)
22. **HB0531_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287640)
23. **HB0531_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=308324)
24. **HB0531_X(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321581)
25. **HB0531_X(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321582)
26. **HB0531_X(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=324689)
27. **HB0531_X(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325892)
28. **HB0531_X(14).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=327029)
29. **HB0531_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=308325)
30. **HB0531_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=308627)
31. **HB0531_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=308638)
32. **HB0531_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=308639)
33. **HB0531_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310878)
34. **HB0531_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=316818)
35. **HB0531_X(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=320394)
36. **HB0531_X(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321580)
37. **HB0531_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=308323)
38. **LC0596.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=282049)

## Votes

- be_concurred_in — **5–3** (pass) · upper
- do_pass_as_amended — **12–8** (pass) · lower
- Do Pass — **59–40** (pass) · lower
- Do Pass — **57–42** (pass) · lower
- Do Concur — **31–19** (pass) · upper
- Do Concur — **29–19** (pass) · upper

## Sponsors

- Steve Fitzpatrick — primary (person)

## Timeline

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

- **2024-10-21T14:23:09+00:00** (LC) Drafter Assigned
- **2025-02-11T23:15:22+00:00** (LC) Draft in Legal Review
- **2025-02-11T23:20:41+00:00** (LC) Draft in Edit
- **2025-02-13T19:44:26+00:00** (LC) Draft in Input/Proofing
- **2025-02-13T21:22:19+00:00** (LC) Draft in Final Drafter Review
- **2025-02-14T00:08:10+00:00** (LC) Draft in Assembly
- **2025-02-15T19:51:24+00:00** (LC) Draft Ready for Delivery
- **2025-02-17T23:17:37+00:00** (LC) Draft Delivered to Requester
- **2025-02-18T14:39:30+00:00** (H) Introduced
- **2025-02-18T18:14:36+00:00** (H) Referred to Committee - (H) Judiciary `referral-committee`
- **2025-02-18T19:39:53+00:00** (H) First Reading `reading-1`
- **2025-02-20T18:38:15+00:00** (H) Hearing - (H) Judiciary
- **2025-02-25T18:48:51+00:00** (H) Committee Executive Action--Bill Passed as Amended - (H) Judiciary `committee-passage`
- **2025-02-25T21:02:00+00:00** (H) Committee Report--Bill Passed as Amended - (H) Judiciary `committee-passage`
- **2025-03-05T15:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2025-03-05T18:15:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2025-03-07T15:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2025-03-07T16:34:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2025-03-07T18:00:00+00:00** (H) Transmitted to Senate
- **2025-03-14T23:06:17+00:00** (S) First Reading `reading-1`
- **2025-03-14T23:24:00+00:00** (S) Referred to Committee - (S) Judiciary `referral-committee`
- **2025-03-24T09:33:04+00:00** (S) Hearing - (S) Judiciary
- **2025-03-24T16:45:51+00:00** (S) Committee Executive Action--Bill Concurred - (S) Judiciary
- **2025-03-24T22:30:00+00:00** (S) Committee Report--Bill Concurred - (S) Judiciary
- **2025-04-09T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2025-04-09T20:57:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2025-04-10T14:30:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-04-10T18:23:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2025-04-10T18:23:24+00:00** (H) Sent to Enrolling
- **2025-04-11T15:22:23+00:00** (H) Returned from Enrolling
- **2025-04-18T21:00:00+00:00** (H) Signed by Speaker `passage`
- **2025-04-22T13:30:24+00:00** (S) Signed by President `passage`
- **2025-04-22T18:10:24+00:00** (H) Transmitted to Governor `executive-receipt`
- **2025-05-01T21:14:29+00:00** (H) Signed by Governor `executive-signature`
- **2025-05-05T16:47:39+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/67552d0d-4d8a-42df-aed5-1eca3513b3b7`. Confidence: reported (aggregated from official Montana legislature records).