---
type: "Bill"
title: "Allow fossils found on state lands to be housed in local museums"
description: "Allow fossils found on state lands to be housed in local museums"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2023"
identifier: "HB 586"
citation: "Montana HB 586 (2023)"
classification: ["bill"]
subjects: ["Arts and Antiquities", "State Lands"]
status: "enacted"
primary_sponsors: ["Greg Oblander"]
version_count: 5
action_count: 51
vote_count: 6
first_action: "2022-11-13T18:26:42+00:00"
last_action: "2023-04-27T18:08:28+00:00"
source: "openstates"
source_identifier: "ocd-bill/9f2e0cae-9732-4542-9293-6eeb013611b0"
source_url: "https://bills.legmt.gov/#/bill/20231/LC1108"
source_hash: "764fcb79284307a01b962ddb844c7d7d0a38af49e2c55288d5848767c87e01d0"
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 586 (2023) — Allow fossils found on state lands to be housed in local museums

## Version chain

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

1. **HB0586.001.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9107)
2. **HB0586.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9106)
3. **HB0586_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9109)
4. **HB0586_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9110)
5. **HB0586_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9111)

## Votes

- (S) 2nd Reading Concurred — **50–0** (pass) · upper
- (S) 3rd Reading Concurred — **49–0** (pass) · upper
- (H) 2nd Reading Passed — **99–0** (pass) · lower
- (H) 3rd Reading Passed — **98–0** (pass) · lower
- (S) Committee Executive Action--Bill Concurred — **11–0** (pass) · upper
- (H) Committee Executive Action--Bill Passed as Amended — **15–0** (pass) · lower

## Sponsors

- Greg Oblander — primary (person)

## Timeline

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

- **2023-04-27T18:08:28+00:00** Chapter Number Assigned `became-law`
- **2023-04-26T15:51:00+00:00** (H) Signed by Governor `executive-signature`
- **2023-04-21T16:40:00+00:00** (H) Transmitted to Governor `executive-receipt`
- **2023-04-20T17:01:00+00:00** (S) Signed by President `passage`
- **2023-04-19T15:51:00+00:00** (H) Signed by Speaker `passage`
- **2023-04-13T22:53:07+00:00** (C) Printed - Enrolled Version Available `enrolled`
- **2023-04-13T22:53:06+00:00** (H) Returned from Enrolling
- **2023-04-04T02:02:37+00:00** (H) Sent to Enrolling
- **2023-04-03T23:40:59+00:00** (S) Returned to House
- **2023-03-31T19:25:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2023-03-31T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2023-03-30T19:28:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2023-03-30T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-03-28T19:10:00+00:00** (S) Committee Report--Bill Concurred
- **2023-03-27T21:00:00+00:00** (S) Committee Executive Action--Bill Concurred
- **2023-03-22T21:00:00+00:00** (S) Hearing
- **2023-03-13T23:04:49+00:00** (S) Referred to Committee `referral-committee`
- **2023-03-10T00:13:11+00:00** (S) First Reading `reading-1`
- **2023-03-03T21:34:45+00:00** (H) Transmitted to Senate
- **2023-03-03T16:55:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2023-03-03T16:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2023-03-02T21:39:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2023-03-02T20:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2023-03-02T15:41:34+00:00** (H) Fiscal Note Printed
- **2023-03-01T00:01:06+00:00** (H) Sponsor Rebuttal to Fiscal Note Requested
- **2023-03-01T00:00:38+00:00** (H) Fiscal Note Signed
- **2023-02-28T20:51:00+00:00** (H) Committee Report--Bill Passed as Amended `committee-passage`
- **2023-02-28T17:37:44+00:00** (H) Fiscal Note Received `receipt`
- **2023-02-27T20:28:07+00:00** (C) Printed - New Version Available
- **2023-02-24T22:00:00+00:00** (H) Committee Executive Action--Bill Passed as Amended `committee-passage`
- **2023-02-24T21:28:14+00:00** (C) Amendments Available
- **2023-02-23T22:32:22+00:00** (H) Sponsor List Modified
- **2023-02-22T22:00:33+00:00** (H) Hearing
- **2023-02-21T18:04:49+00:00** (H) Fiscal Note Requested
- **2023-02-16T20:31:48+00:00** (H) First Reading `reading-1`
- **2023-02-16T17:55:14+00:00** (H) Referred to Committee `referral-committee`
- **2023-02-16T05:12:16+00:00** (C) Introduced Bill Text Available Electronically
- **2023-02-16T01:52:36+00:00** (H) Introduced
- **2023-02-01T23:56:58+00:00** (C) Draft Ready for Delivery
- **2023-02-01T16:40:37+00:00** (C) Executive Director Final Review
- **2023-02-01T16:40:33+00:00** (C) Draft Ready for Delivery
- **2023-01-31T22:25:30+00:00** (C) Draft in Assembly
- **2023-01-31T17:31:02+00:00** (C) Executive Director Review
- **2023-01-30T23:16:27+00:00** (C) Bill Draft Text Available Electronically
- **2023-01-30T23:16:26+00:00** (C) Draft in Final Drafter Review
- **2023-01-30T20:52:52+00:00** (C) Draft in Input/Proofing
- **2023-01-29T03:14:03+00:00** (C) Draft to Drafter - Edit Review
- **2023-01-27T21:12:11+00:00** (C) Draft in Edit
- **2023-01-26T22:51:24+00:00** (C) Draft in Legal Review
- **2023-01-23T17:14:52+00:00** (C) Draft to Requester for Review
- **2022-11-13T18:26:42+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/9f2e0cae-9732-4542-9293-6eeb013611b0`. Confidence: reported (aggregated from official Montana legislature records).