republic-os/legislation/us/states/mt/2023/hb-450.md

---
type: "Bill"
title: "Protect physical self-defense in K-12 schools"
description: "Protect physical self-defense in K-12 schools"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2023"
identifier: "HB 450"
citation: "Montana HB 450 (2023)"
classification: ["bill"]
subjects: ["Schools and Education"]
status: "enacted"
primary_sponsors: ["Jedediah Hinkle"]
version_count: 11
action_count: 58
vote_count: 9
first_action: "2022-11-30T22:03:46+00:00"
last_action: "2023-04-26T19:37:01+00:00"
source: "openstates"
source_identifier: "ocd-bill/e1bf435d-fce1-45c4-a971-f93777e032b9"
source_url: "https://bills.legmt.gov/#/bill/20231/LC1886"
source_hash: "b6b0b4c59152b1a504c444b0492be6e45b5fdcab73d07994dab03019fdcd2971"
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 450 (2023) — Protect physical self-defense in K-12 schools

## Version chain

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

1. **HB0450.001.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9935)
2. **HB0450.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9931)
3. **HB0450.002.001.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9934)
4. **HB0450.002.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9933)
5. **HB0450.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9929)
6. **HB0450001SCH16504.hlc.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9930)
7. **HB0450002CWH19696.hlc.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9932)
8. **HB0450_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9937)
9. **HB0450_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9936)
10. **HB0450_3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9938)
11. **HB0450_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9939)

## Votes

- (H) 3rd Reading Passed — **69–27** (pass) · lower
- (S) 3rd Reading Concurred — **29–19** (pass) · upper
- (H) 2nd Reading Passed — **70–30** (pass) · lower
- (S) 2nd Reading Motion to Amend Carried — **34–16** (pass) · upper
- (S) Committee Executive Action--Bill Concurred — **7–4** (pass) · upper
- (S) 2nd Reading Concurred as Amended — **31–19** (pass) · upper
- (H) 3rd Reading Passed as Amended by Senate — **67–31** (pass) · lower
- (H) 2nd Reading Senate Amendments Concurred — **68–32** (pass) · lower
- (H) Committee Executive Action--Bill Passed as Amended — **7–6** (pass) · lower

## Sponsors

- Jedediah Hinkle — primary (person)

## Timeline

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

- **2023-04-26T19:37:01+00:00** Chapter Number Assigned `became-law`
- **2023-04-26T01:01:00+00:00** (H) Signed by Governor `executive-signature`
- **2023-04-21T16:40:00+00:00** (H) Transmitted to Governor `executive-receipt`
- **2023-04-20T22:00:00+00:00** (S) Signed by President `passage`
- **2023-04-20T20:40:00+00:00** (H) Signed by Speaker `passage`
- **2023-04-18T15:41:08+00:00** (C) Printed - Enrolled Version Available `enrolled`
- **2023-04-18T15:41:07+00:00** (H) Returned from Enrolling
- **2023-04-17T15:23:41+00:00** (H) Sent to Enrolling
- **2023-04-14T21:33:00+00:00** (H) 3rd Reading Passed as Amended by Senate `passage, passage, reading-3, reading-3`
- **2023-04-14T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2023-04-13T19:35:00+00:00** (H) 2nd Reading Senate Amendments Concurred `amendment-amendment, amendment-passage, reading-2, reading-2`
- **2023-04-13T19:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2023-03-31T21:52:44+00:00** (S) Returned to House with Amendments
- **2023-03-30T20:50:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2023-03-30T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2023-03-28T21:23:55+00:00** (C) Printed - New Version Available
- **2023-03-28T19:39:00+00:00** (S) 2nd Reading Concurred as Amended `reading-2, reading-2`
- **2023-03-28T19:21:00+00:00** (S) 2nd Reading Motion to Amend Carried `reading-2`
- **2023-03-28T19:00:01+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-03-28T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-03-24T20:31:00+00:00** (S) 2nd Reading Pass Consideration `reading-2`
- **2023-03-24T19:00:01+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-03-21T19:37:00+00:00** (S) 2nd Reading Pass Consideration `reading-2`
- **2023-03-17T19:29:00+00:00** (S) Committee Report--Bill Concurred
- **2023-03-16T15:00:00+00:00** (S) Committee Executive Action--Bill Concurred
- **2023-03-15T15:00:00+00:00** (S) Hearing
- **2023-03-10T22:40:00+00:00** (S) Hearing Canceled
- **2023-03-10T21:02:00+00:00** (S) Rereferred to Committee `referral-committee, referral-committee`
- **2023-03-03T02:49:17+00:00** (S) Referred to Committee `referral-committee`
- **2023-03-02T16:32:00+00:00** (S) First Reading `reading-1`
- **2023-03-02T03:00:00+00:00** (H) Transmitted to Senate
- **2023-03-02T02:08:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2023-02-28T21:55:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2023-02-24T00:14:31+00:00** (C) Printed - New Version Available
- **2023-02-23T21:02:00+00:00** (H) Committee Report--Bill Passed as Amended `committee-passage`
- **2023-02-22T22:00:00+00:00** (H) Committee Executive Action--Bill Passed as Amended `committee-passage`
- **2023-02-22T15:22:13+00:00** (C) Amendments Available
- **2023-02-15T22:00:45+00:00** (H) Hearing
- **2023-02-10T21:58:00+00:00** (H) Sponsor List Modified
- **2023-02-09T20:26:40+00:00** (C) Introduced Bill Text Available Electronically
- **2023-02-09T20:20:07+00:00** (H) First Reading `reading-1`
- **2023-02-09T19:15:27+00:00** (H) Referred to Committee `referral-committee`
- **2023-02-08T17:12:18+00:00** (H) Introduced
- **2023-02-06T18:45:03+00:00** (C) Draft Delivered to Requester
- **2023-02-02T18:26:06+00:00** (C) Draft Ready for Delivery
- **2023-02-01T23:31:47+00:00** (C) Executive Director Final Review
- **2023-02-01T23:31:36+00:00** (C) Draft Ready for Delivery
- **2023-02-01T21:49:53+00:00** (C) Draft in Assembly
- **2023-02-01T21:43:11+00:00** (C) Executive Director Review
- **2023-02-01T16:39:54+00:00** (C) Bill Draft Text Available Electronically
- **2023-02-01T16:39:53+00:00** (C) Draft in Final Drafter Review
- **2023-02-01T03:47:43+00:00** (C) Draft in Input/Proofing
- **2023-02-01T01:39:29+00:00** (C) Draft to Drafter - Edit Review
- **2023-01-28T23:42:58+00:00** (C) Draft in Edit
- **2023-01-27T19:56:21+00:00** (C) Draft in Legal Review
- **2023-01-19T04:06:44+00:00** (C) Draft to Requester for Review
- **2023-01-19T04:04:11+00:00** (C) Draft to Requester for Review
- **2022-11-30T22:03:46+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/e1bf435d-fce1-45c4-a971-f93777e032b9`. Confidence: reported (aggregated from official Montana legislature records).