republic-os/legislation/us/states/mt/2023/hb-584.md

---
type: "Bill"
title: "Revise government lawsuit laws relating to firearms and ammunition"
description: "Revise government lawsuit laws relating to firearms and ammunition"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2023"
identifier: "HB 584"
citation: "Montana HB 584 (2023)"
classification: ["bill"]
subjects: ["Cities and Towns (see also: Local Government)", "Liability (see also: Remedies; Torts)", "Local Government (see also: City Subjects; County Subjects)", "State Government"]
status: "enacted"
primary_sponsors: ["George Nikolakakos"]
version_count: 11
action_count: 48
vote_count: 8
first_action: "2022-12-04T00:05:50+00:00"
last_action: "2023-04-20T23:19:06+00:00"
source: "openstates"
source_identifier: "ocd-bill/490a740a-2e8f-423d-8be6-c525c8d7f74f"
source_url: "https://bills.legmt.gov/#/bill/20231/LC2702"
source_hash: "9ead22143a42edaa5f142ac82ae21ceb3849b76b3f3dd875ed93c02df58fcf5f"
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 584 (2023) — Revise government lawsuit laws relating to firearms and ammunition

## Version chain

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

1. **HB0584.001.001.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9096)
2. **HB0584.001.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9090)
3. **HB0584.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9091)
4. **HB0584.002.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9089)
5. **HB0584.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9093)
6. **HB0584.002.002.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9095)
7. **HB0584.002.002_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9092)
8. **HB0584.002.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9094)
9. **HB0584_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9099)
10. **HB0584_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9098)
11. **HB0584_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9097)

## Votes

- (H) Committee Executive Action--Bill Passed — **12–7** (pass) · lower
- (H) 2nd Reading Passed as Amended — **76–24** (pass) · lower
- (H) 2nd Reading Motion to Amend Carried — **74–26** (pass) · lower
- (H) 3rd Reading Passed — **78–21** (pass) · lower
- (S) Committee Executive Action--Bill Concurred — **7–4** (pass) · upper
- (S) 2nd Reading Motion to Amend Failed — **16–33** (fail) · upper
- (S) 3rd Reading Concurred — **35–14** (pass) · upper
- (S) 2nd Reading Concurred — **35–15** (pass) · upper

## Sponsors

- George Nikolakakos — primary (person)

## Timeline

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

- **2023-04-20T23:19:06+00:00** Chapter Number Assigned `became-law`
- **2023-04-20T16:33:00+00:00** (H) Signed by Governor `executive-signature`
- **2023-04-13T16:45:00+00:00** (H) Transmitted to Governor `executive-receipt`
- **2023-04-12T18:00:00+00:00** (S) Signed by President `passage`
- **2023-04-07T20:00:00+00:00** (H) Signed by Speaker `passage`
- **2023-04-06T20:38:46+00:00** (C) Printed - Enrolled Version Available `enrolled`
- **2023-04-06T20:38:02+00:00** (H) Returned from Enrolling
- **2023-04-04T23:04:04+00:00** (H) Sent to Enrolling
- **2023-04-04T21:31:54+00:00** (S) Returned to House
- **2023-04-03T17:16:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2023-04-03T16:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2023-03-31T20:39:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2023-03-31T20:37:00+00:00** (S) 2nd Reading Motion to Amend Failed `amendment-failure, failure, reading-2`
- **2023-03-31T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-03-29T19:16:00+00:00** (S) Committee Report--Bill Concurred
- **2023-03-28T14:00:00+00:00** (S) Committee Executive Action--Bill Concurred
- **2023-03-22T14:00:00+00:00** (S) Hearing
- **2023-03-14T15:11:04+00:00** (S) Referred to Committee `referral-committee`
- **2023-03-10T00:13:57+00:00** (S) First Reading `reading-1`
- **2023-03-03T17:19:53+00:00** (H) Transmitted to Senate
- **2023-03-03T04:21:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2023-03-02T20:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2023-03-02T01:05:30+00:00** (C) Printed - New Version Available
- **2023-03-01T19:01:00+00:00** (H) 2nd Reading Passed as Amended `reading-2, reading-2`
- **2023-03-01T18:59:00+00:00** (H) 2nd Reading Motion to Amend Carried `reading-2`
- **2023-03-01T15:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2023-02-24T23:32:00+00:00** (H) Committee Report--Bill Passed `committee-passage`
- **2023-02-24T14:00:00+00:00** (H) Committee Executive Action--Bill Passed `committee-passage`
- **2023-02-24T13:24:00+00:00** (C) Amendments Available
- **2023-02-23T22:15:28+00:00** (H) Hearing
- **2023-02-16T20:31:46+00:00** (H) First Reading `reading-1`
- **2023-02-16T17:54:52+00:00** (H) Referred to Committee `referral-committee`
- **2023-02-16T05:10:58+00:00** (C) Introduced Bill Text Available Electronically
- **2023-02-16T01:49:10+00:00** (H) Introduced
- **2023-02-14T22:03:08+00:00** (C) Draft Delivered to Requester
- **2023-02-09T00:31:43+00:00** (C) Draft Ready for Delivery
- **2023-02-08T22:52:34+00:00** (C) Executive Director Final Review
- **2023-02-08T22:52:31+00:00** (C) Draft Ready for Delivery
- **2023-02-08T21:49:58+00:00** (C) Draft in Assembly
- **2023-02-08T18:15:28+00:00** (C) Executive Director Review
- **2023-02-08T15:38:09+00:00** (C) Bill Draft Text Available Electronically
- **2023-02-08T15:38:08+00:00** (C) Draft in Final Drafter Review
- **2023-02-08T01:26:37+00:00** (C) Draft in Input/Proofing
- **2023-02-04T23:09:54+00:00** (C) Draft to Drafter - Edit Review
- **2023-02-02T21:36:32+00:00** (C) Draft in Edit
- **2023-02-01T00:35:55+00:00** (C) Draft in Legal Review
- **2023-01-29T22:51:01+00:00** (C) Draft to Requester for Review
- **2022-12-04T00:05:50+00:00** (C) Draft Request Received `receipt`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/490a740a-2e8f-423d-8be6-c525c8d7f74f`. Confidence: reported (aggregated from official Montana legislature records).