---
type: "Bill"
title: "Enhance legislative understanding of state-tribal relations"
description: "Enhance legislative understanding of state-tribal relations"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2025"
identifier: "SB 311"
citation: "Montana SB 311 (2025)"
classification: ["bill"]
subjects: ["Indians", "Legislature"]
status: "enacted"
primary_sponsors: ["Shane Morigeau"]
version_count: 29
action_count: 43
vote_count: 7
first_action: "2024-09-04T18:32:45+00:00"
last_action: "2025-05-13T13:29:17+00:00"
source: "openstates"
source_identifier: "ocd-bill/5aa60159-415f-48cc-b916-0b58ff43534e"
source_url: "https://bills.legmt.gov/#/laws/bill/2/LC0130?open_tab=sum"
source_hash: "68eed269a7c4bdc298d623cf8066ba7af3993bbf9ca723b439ba82045d92e073"
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 311 (2025) — Enhance legislative understanding of state-tribal relations

## Version chain

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

1. **LC0130.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=269364)
2. **SB0311.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=291444)
3. **SB0311_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=282595)
4. **SB0311_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292633)
5. **SB0311_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292634)
6. **SB0311_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292635)
7. **SB0311_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292636)
8. **SB0311_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=281909)
9. **SB0311_2(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292638)
10. **SB0311_2(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=300058)
11. **SB0311_2(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309197)
12. **SB0311_2(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309198)
13. **SB0311_2(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292650)
14. **SB0311_2(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292651)
15. **SB0311_2(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292654)
16. **SB0311_2(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292657)
17. **SB0311_2(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292658)
18. **SB0311_2(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292659)
19. **SB0311_2(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292661)
20. **SB0311_2(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293371)
21. **SB0311_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292637)
22. **SB0311_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=316907)
23. **SB0311_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=320482)
24. **SB0311_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=322659)
25. **SB0311_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=322660)
26. **SB0311_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=322661)
27. **SB0311_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=324946)
28. **SB0311_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325615)
29. **SB0311_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310970)

## Votes

- Do Pass — **45–5** (pass) · upper
- Do Concur — **86–13** (pass) · lower
- Do Pass — **46–4** (pass) · upper
- Do Concur — **81–19** (pass) · lower
- do_pass_as_amended — **6–0** (pass) · upper
- be_concurred_in — **16–3** (pass) · lower
- be_concurred_in — **21–0** (pass) · lower

## Sponsors

- Shane Morigeau — primary (person)

## Timeline

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

- **2024-09-04T18:32:45+00:00** (LC) Drafter Assigned
- **2024-12-16T15:28:03+00:00** (LC) Draft in Legal Review
- **2024-12-16T20:11:16+00:00** (LC) Draft in Edit
- **2024-12-20T16:57:50+00:00** (LC) Draft in Input/Proofing
- **2024-12-22T22:30:29+00:00** (LC) Draft in Final Drafter Review
- **2024-12-23T20:08:31+00:00** (LC) Draft in Assembly
- **2024-12-24T15:34:10+00:00** (LC) Draft Ready for Delivery
- **2025-02-11T19:38:48+00:00** (LC) Draft Delivered to Requester
- **2025-02-13T17:38:54+00:00** (S) Introduced
- **2025-02-13T20:19:15+00:00** (S) First Reading `reading-1`
- **2025-02-14T17:26:30+00:00** (S) Fiscal Note Requested
- **2025-02-14T18:37:42+00:00** (S) Referred to Committee - (S) Legislative Administration `referral-committee`
- **2025-02-28T00:43:13+00:00** (S) Hearing - (S) Legislative Administration
- **2025-03-03T16:07:13+00:00** (S) Fiscal Note Received `receipt`
- **2025-03-03T16:07:20+00:00** (S) Fiscal Note Unsigned
- **2025-03-03T19:21:05+00:00** (S) Fiscal Note Printed
- **2025-03-04T19:12:55+00:00** (S) Committee Executive Action--Bill Passed as Amended - (S) Legislative Administration `committee-passage`
- **2025-03-05T15:56:00+00:00** (S) Committee Report--Bill Passed as Amended - (S) Legislative Administration `committee-passage`
- **2025-03-05T20:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2025-03-06T02:53:00+00:00** (S) 2nd Reading Passed `reading-2, reading-2`
- **2025-03-06T15:30:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-03-06T19:29:00+00:00** (S) 3rd Reading Passed `passage, reading-3`
- **2025-03-06T20:25:21+00:00** (S) Transmitted to House
- **2025-03-07T17:20:11+00:00** (H) Referred to Committee - (H) State Administration `referral-committee`
- **2025-03-17T19:15:00+00:00** (H) First Reading `reading-1`
- **2025-03-18T14:14:01+00:00** (H) Hearing - (H) State Administration
- **2025-03-28T16:31:56+00:00** (H) Committee Executive Action--Bill Concurred - (H) State Administration
- **2025-03-28T20:01:00+00:00** (H) Committee Report--Bill Concurred - (H) State Administration
- **2025-04-09T21:52:30+00:00** (H) Rereferred to Committee - (H) Appropriations `referral-committee, referral-committee`
- **2025-04-10T00:00:34+00:00** (H) Hearing - (H) Appropriations
- **2025-04-10T00:12:46+00:00** (H) Committee Executive Action--Bill Concurred - (H) Appropriations
- **2025-04-10T15:04:00+00:00** (H) Committee Report--Bill Concurred - (H) Appropriations
- **2025-04-11T14:30:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2025-04-11T16:19:00+00:00** (H) 2nd Reading Concurred `reading-2, reading-2`
- **2025-04-11T21:01:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2025-04-11T23:57:00+00:00** (H) 3rd Reading Concurred `passage, reading-3`
- **2025-04-11T23:57:47+00:00** (S) Sent to Enrolling
- **2025-04-13T15:20:43+00:00** (S) Returned from Enrolling
- **2025-04-21T22:00:00+00:00** (S) Signed by President `passage`
- **2025-04-29T22:15:14+00:00** (H) Signed by Speaker `passage`
- **2025-04-30T16:55:55+00:00** (S) Transmitted to Governor `executive-receipt`
- **2025-05-09T02:41:00+00:00** (S) Signed by Governor `executive-signature`
- **2025-05-13T13:29:17+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/5aa60159-415f-48cc-b916-0b58ff43534e`. Confidence: reported (aggregated from official Montana legislature records).