---
type: "Bill"
title: "Revise laws related to involuntary commitment of people with dementia or TBI"
description: "Revise laws related to involuntary commitment of people with dementia or TBI"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2023"
identifier: "HB 29"
citation: "Montana HB 29 (2023)"
classification: ["bill"]
subjects: ["Aging and Senior Citizens (same as: Senior Citizens)", "Appropriations (see also: State Finance)", "Institutions (see also: Dev. Dis.", "Persons With; Mental Illness)", "Mental Illness or Incapacity (see also: Institutions)", "Social Services"]
status: "enacted"
primary_sponsors: ["Jennifer Carlson"]
version_count: 8
action_count: 63
vote_count: 9
first_action: "2022-07-26T19:59:52+00:00"
last_action: "2023-06-21T19:42:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/3bab7d8a-aadf-41e4-9ed7-55a0c2b319d1"
source_url: "https://bills.legmt.gov/#/bill/20231/LC0158"
source_hash: "9f377af5bb65698f90228cdcd508dae32d2b69640aed55bf542748d457cb4657"
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 29 (2023) — Revise laws related to involuntary commitment of people with dementia or TBI

## Version chain

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

1. **HB0029.002.001(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=2718)
2. **HB0029.002.001.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=2719)
3. **HB0029.002.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=2720)
4. **HB0029.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=2721)
5. **HB0029GovVeto.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=2723)
6. **HB0029VetoPoll.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=2724)
7. **HB0029_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=2725)
8. **HB0029_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=2726)

## Votes

- (S) 2nd Reading Concurred — **49–0** (pass) · upper
- (S) 3rd Reading Concurred — **49–0** (pass) · upper
- (H) 3rd Reading Passed — **91–6** (pass) · lower
- (H) Committee Executive Action--Bill Passed — **21–2** (pass) · lower
- (H) 2nd Reading Passed — **90–9** (pass) · lower
- (S) Committee Executive Action--Bill Concurred — **9–0** (pass) · upper
- (H) Committee Executive Action--Bill Passed — **20–1** (pass) · lower
- (H) Veto Overridden by Legislature — **106–33** (pass) · lower
- (S) Committee Executive Action--Bill Concurred — **19–0** (pass) · upper

## Sponsors

- Jennifer Carlson — primary (person)

## Timeline

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

- **2023-06-21T19:42:00+00:00** Chapter Number Assigned `became-law`
- **2023-06-09T16:20:47+00:00** (H) Veto Overridden by Legislature
- **2023-06-05T22:37:49+00:00** (H) Veto Override Vote Mail Poll in Progress
- **2023-05-11T18:26:05+00:00** (H) Vetoed by Governor `executive-veto`
- **2023-05-04T17:39:01+00:00** (H) Transmitted to Governor `executive-receipt`
- **2023-05-02T22:35:00+00:00** (H) Returned with Governor's Proposed Amendments
- **2023-04-27T16:30:00+00:00** (H) Transmitted to Governor `executive-receipt`
- **2023-04-27T15:00:00+00:00** (S) Signed by President `passage`
- **2023-04-22T22:00:00+00:00** (H) Signed by Speaker `passage`
- **2023-04-20T16:23:47+00:00** (C) Printed - Enrolled Version Available `enrolled`
- **2023-04-20T16:23:46+00:00** (H) Returned from Enrolling
- **2023-04-20T15:14:54+00:00** (H) Sent to Enrolling
- **2023-04-19T02:39:00+00:00** (S) Returned to House
- **2023-04-18T21:40:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2023-04-18T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2023-04-14T20:09:00+00:00** (S) Committee Report--Bill Concurred
- **2023-04-14T14:00:01+00:00** (S) Committee Executive Action--Bill Concurred
- **2023-04-14T14:00:00+00:00** (S) Hearing
- **2023-04-12T20:00:00+00:00** (S) Rereferred to Committee `referral-committee, referral-committee`
- **2023-04-12T19:57:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2023-04-12T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-04-06T19:27:00+00:00** (S) Committee Report--Bill Concurred
- **2023-04-05T21:00:00+00:00** (S) Committee Executive Action--Bill Concurred
- **2023-03-31T20:00:00+00:00** (S) Hearing
- **2023-03-22T20:56:00+00:00** (S) Rereferred to Committee `referral-committee, referral-committee`
- **2023-03-20T15:03:43+00:00** (S) Referred to Committee `referral-committee`
- **2023-02-15T20:21:00+00:00** (S) First Reading `reading-1`
- **2023-02-14T23:28:00+00:00** (H) Transmitted to Senate
- **2023-02-14T21:05:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2023-02-14T20:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2023-02-13T20:15:00+00:00** (H) Committee Report--Bill Passed `committee-passage`
- **2023-02-09T22:00:00+00:00** (H) Committee Executive Action--Bill Passed `committee-passage`
- **2023-01-26T22:00:36+00:00** (H) Hearing
- **2023-01-26T15:18:41+00:00** (H) Sponsor Rebuttal to Fiscal Note Printed
- **2023-01-21T14:55:37+00:00** (H) Hearing Canceled
- **2023-01-19T22:20:00+00:00** (H) Rereferred to Committee `referral-committee, referral-committee`
- **2023-01-19T20:46:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2023-01-19T20:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2023-01-18T14:55:00+00:00** (H) Sponsor Rebuttal to Fiscal Note Signed
- **2023-01-18T14:50:00+00:00** (H) Sponsor Rebuttal to Fiscal Note Received `receipt`
- **2023-01-17T20:12:00+00:00** (H) Committee Report--Bill Passed `committee-passage`
- **2023-01-17T02:31:00+00:00** (H) Committee Executive Action--Bill Passed `committee-passage`
- **2023-01-13T22:00:38+00:00** (H) Hearing
- **2023-01-12T19:48:13+00:00** (H) Sponsor Rebuttal to Fiscal Note Requested
- **2023-01-09T21:37:47+00:00** (H) Fiscal Note Printed
- **2023-01-09T17:53:48+00:00** (H) Fiscal Note Unsigned
- **2023-01-06T14:43:44+00:00** (H) Fiscal Note Received `receipt`
- **2023-01-02T20:23:11+00:00** (H) First Reading `reading-1`
- **2022-12-19T23:28:36+00:00** (H) Referred to Committee `referral-committee`
- **2022-12-05T21:42:59+00:00** (H) Fiscal Note Requested
- **2022-12-01T21:20:29+00:00** (C) Introduced Bill Text Available Electronically
- **2022-12-01T19:36:07+00:00** (C) Introduced Bill Text Available Electronically
- **2022-12-01T16:36:04+00:00** (H) Introduced
- **2022-12-01T16:36:03+00:00** (C) Fiscal Note Probable
- **2022-11-20T16:52:54+00:00** (C) Draft in Assembly
- **2022-11-19T03:49:03+00:00** (C) Executive Director Review
- **2022-11-17T17:48:21+00:00** (C) Bill Draft Text Available Electronically
- **2022-11-17T17:48:20+00:00** (C) Draft in Final Drafter Review
- **2022-10-06T12:38:21+00:00** (C) Draft in Input/Proofing
- **2022-09-27T00:57:48+00:00** (C) Draft to Drafter - Edit Review
- **2022-09-14T16:20:00+00:00** (C) Draft in Edit
- **2022-09-09T15:17:58+00:00** (C) Draft in Legal Review
- **2022-07-26T19:59:52+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/3bab7d8a-aadf-41e4-9ed7-55a0c2b319d1`. Confidence: reported (aggregated from official Montana legislature records).