--- type: "Bill" title: "Revise Montana historical society laws" description: "Revise Montana historical society laws" jurisdiction: "us/states/mt" legislature: "Montana Legislature" session: "2025" identifier: "HB 166" citation: "Montana HB 166 (2025)" classification: ["bill"] subjects: ["Appropriations", "Arts", "State Finance", "State Government"] status: "enacted" primary_sponsors: ["Julie Darling"] version_count: 16 action_count: 40 vote_count: 6 first_action: "2024-11-12T01:50:44+00:00" last_action: "2025-05-06T03:05:51+00:00" source: "openstates" source_identifier: "ocd-bill/aba9277c-d103-4341-8a8c-ca74d44c2265" source_url: "https://bills.legmt.gov/#/laws/bill/2/LC1266?open_tab=sum" source_hash: "61057ff5b5386e8b77720176848cf0408f32689f7c57c092de90dcd30ec627b9" 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 166 (2025) — Revise Montana historical society laws ## Version chain The bill's text revisions, in order — the diff chain from filing to enrollment. 1. **HB0166_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=270692) 2. **HB0166_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=275178) 3. **HB0166_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=276245) 4. **HB0166_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277910) 5. **HB0166_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=278030) 6. **HB0166_1(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=286373) 7. **HB0166_1(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295667) 8. **HB0166_1(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305147) 9. **HB0166_1(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305148) 10. **HB0166_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=270557) 11. **HB0166_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=316691) 12. **HB0166_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=320273) 13. **HB0166_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=324608) 14. **HB0166_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=326120) 15. **HB0166_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310750) 16. **LC1266.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=269733) ## Votes - Do Concur — **46–3** (pass) · upper - Do Pass — **95–4** (pass) · lower - Do Pass — **97–3** (pass) · lower - do_pass — **19–0** (pass) · lower - Do Concur — **42–8** (pass) · upper - be_concurred_in — **9–0** (pass) · upper ## Sponsors - Julie Darling — primary (person) ## Timeline The legislative action history — every referral, reading, and vote. - **2024-11-12T01:50:44+00:00** (LC) Drafter Assigned - **2024-12-31T19:38:44+00:00** (LC) Draft in Legal Review - **2024-12-31T23:16:34+00:00** (LC) Draft in Edit - **2025-01-03T22:19:37+00:00** (LC) Draft in Input/Proofing - **2025-01-07T20:45:44+00:00** (LC) Draft in Final Drafter Review - **2025-01-09T16:14:03+00:00** (LC) Draft in Assembly - **2025-01-09T21:44:23+00:00** (LC) Draft Delivered to Requester - **2025-01-10T14:39:53+00:00** (H) Introduced - **2025-01-10T15:38:15+00:00** (H) Fiscal Note Requested - **2025-01-10T19:06:24+00:00** (H) Referred to Committee - (H) State Administration `referral-committee` - **2025-01-10T20:47:42+00:00** (H) First Reading `reading-1` - **2025-01-15T16:30:57+00:00** (H) Hearing - (H) State Administration - **2025-01-21T00:12:57+00:00** (H) Fiscal Note Received `receipt` - **2025-01-21T19:10:30+00:00** (H) Fiscal Note Signed - **2025-01-21T22:12:51+00:00** (H) Fiscal Note Printed - **2025-01-28T18:40:54+00:00** (H) Committee Executive Action--Bill Passed - (H) State Administration `committee-passage` - **2025-01-28T18:46:46+00:00** (H) Committee Executive Action--Bill Passed - (H) State Administration `committee-passage` - **2025-01-28T20:19:00+00:00** (H) Committee Report--Bill Passed - (H) State Administration `committee-passage` - **2025-01-30T20:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2` - **2025-01-30T20:27:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2` - **2025-01-31T20:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3` - **2025-01-31T21:33:00+00:00** (H) 3rd Reading Passed `passage, reading-3` - **2025-01-31T21:49:05+00:00** (H) Transmitted to Senate - **2025-02-03T20:19:28+00:00** (S) First Reading `reading-1` - **2025-02-18T19:01:34+00:00** (S) Referred to Committee - (S) State Administration `referral-committee` - **2025-02-22T01:39:25+00:00** (S) Hearing - (S) State Administration - **2025-03-19T23:53:12+00:00** (S) Committee Executive Action--Bill Concurred - (S) State Administration - **2025-03-20T21:44:00+00:00** (S) Committee Report--Bill Concurred - (S) State Administration - **2025-04-01T19:54:18+00:00** (S) 2nd Reading Pass Consideration `reading-2` - **2025-04-03T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2` - **2025-04-03T22:00:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2` - **2025-04-04T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3` - **2025-04-04T19:15:00+00:00** (S) 3rd Reading Concurred `passage, reading-3` - **2025-04-04T19:15:49+00:00** (H) Sent to Enrolling - **2025-04-05T12:49:39+00:00** (H) Returned from Enrolling - **2025-04-18T19:00:46+00:00** (H) Signed by Speaker `passage` - **2025-04-22T00:00:24+00:00** (S) Signed by President `passage` - **2025-04-22T18:10:24+00:00** (H) Transmitted to Governor `executive-receipt` - **2025-05-01T21:01:00+00:00** (H) Signed by Governor `executive-signature` - **2025-05-06T03:05:51+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/aba9277c-d103-4341-8a8c-ca74d44c2265`. Confidence: reported (aggregated from official Montana legislature records).