---
type: "Bill"
title: "Require livestock containment for required animal disease testing"
description: "Require livestock containment for required animal disease testing"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2023"
identifier: "HB 100"
citation: "Montana HB 100 (2023)"
classification: ["bill"]
subjects: ["Agriculture (see also: Livestock; Taxation--Agriculture/Livestock)", "Livestock (see also: Agriculture; Taxation--Agriculture/Livestock)"]
status: "enacted"
primary_sponsors: ["Ross Fitzgerald"]
version_count: 9
action_count: 54
vote_count: 8
first_action: "2022-09-19T13:33:54+00:00"
last_action: "2023-04-19T20:34:42+00:00"
source: "openstates"
source_identifier: "ocd-bill/29e7ab73-e8ae-436d-92cc-4390dd8ef1b0"
source_url: "https://bills.legmt.gov/#/bill/20231/LC0375"
source_hash: "4542a4f3483817b91a93609c1fdc4617471d780420522ae01dc55bc2c443bf16"
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 100 (2023) — Require livestock containment for required animal disease testing

## Version chain

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

1. **HB0100.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=3419)
2. **HB0100.002.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=3420)
3. **HB0100.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=3422)
4. **HB0100.002.002.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=3421)
5. **HB0100.002.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=3424)
6. **HB0100_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=3429)
7. **HB0100_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=3430)
8. **HB0100_3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=3428)
9. **HB0100_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=3431)

## Votes

- (S) 2nd Reading Concurred — **50–0** (pass) · upper
- (H) 3rd Reading Passed — **85–14** (pass) · lower
- (H) Committee Executive Action--Bill Passed as Amended — **19–0** (pass) · lower
- (H) 2nd Reading Passed — **89–11** (pass) · lower
- (H) 3rd Reading Passed as Amended by Senate — **98–0** (pass) · lower
- (S) Committee Executive Action--Bill Concurred as Amended — **11–0** (pass) · upper
- (S) 3rd Reading Concurred — **50–0** (pass) · upper
- (H) 2nd Reading Senate Amendments Concurred — **99–1** (pass) · lower

## Sponsors

- Ross Fitzgerald — primary (person)

## Timeline

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

- **2023-04-19T20:34:42+00:00** Chapter Number Assigned `became-law`
- **2023-04-18T15:16:00+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`
- **2023-03-28T20:38:18+00:00** (C) Printed - Enrolled Version Available `enrolled`
- **2023-03-28T20:38:17+00:00** (H) Returned from Enrolling
- **2023-03-22T21:34:28+00:00** (H) Sent to Enrolling
- **2023-03-21T20:19:00+00:00** (H) 3rd Reading Passed as Amended by Senate `passage, passage, reading-3, reading-3`
- **2023-03-21T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2023-03-20T19:24:00+00:00** (H) 2nd Reading Senate Amendments Concurred `amendment-amendment, amendment-passage, reading-2, reading-2`
- **2023-03-20T19:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2023-03-15T21:12:46+00:00** (S) Returned to House with Amendments
- **2023-03-14T20:02:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2023-03-14T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2023-03-13T19:19:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2023-03-13T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-02-23T00:00:31+00:00** (H) Revised Fiscal Note Printed
- **2023-02-22T21:33:20+00:00** (H) Revised Fiscal Note Signed
- **2023-02-22T20:54:42+00:00** (H) Revised Fiscal Note Received `receipt`
- **2023-02-21T15:33:48+00:00** (C) Printed - New Version Available
- **2023-02-21T14:11:13+00:00** (H) Revised Fiscal Note Requested
- **2023-02-20T20:27:00+00:00** (S) Committee Report--Bill Concurred as Amended
- **2023-02-16T22:00:00+00:00** (S) Committee Executive Action--Bill Concurred as Amended
- **2023-02-07T22:00:28+00:00** (S) Hearing
- **2023-01-28T00:45:00+00:00** (H) Fiscal Note Printed
- **2023-01-27T20:33:05+00:00** (S) First Reading `reading-1`
- **2023-01-27T16:32:23+00:00** (S) Referred to Committee `referral-committee`
- **2023-01-26T22:57:08+00:00** (H) Transmitted to Senate
- **2023-01-26T21:47:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2023-01-26T20:06:00+00:00** (H) Fiscal Note Signed
- **2023-01-26T19:42:00+00:00** (H) Fiscal Note Received `receipt`
- **2023-01-25T20:42:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2023-01-25T20:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2023-01-23T14:14:10+00:00** (H) Fiscal Note Requested
- **2023-01-20T22:02:57+00:00** (C) Printed - New Version Available
- **2023-01-20T20:12:00+00:00** (H) Committee Report--Bill Passed as Amended `committee-passage`
- **2023-01-19T23:58:00+00:00** (H) Committee Executive Action--Bill Passed as Amended `committee-passage`
- **2023-01-19T19:20:09+00:00** (C) Amendments Available
- **2023-01-05T22:00:00+00:00** (H) Hearing
- **2023-01-02T21:06:21+00:00** (H) First Reading `reading-1`
- **2022-12-20T19:27:19+00:00** (H) Referred to Committee `referral-committee`
- **2022-12-14T16:27:52+00:00** (C) Introduced Bill Text Available Electronically
- **2022-12-13T17:39:17+00:00** (H) Introduced
- **2022-11-18T18:30:46+00:00** (C) Draft in Assembly
- **2022-11-18T17:07:32+00:00** (C) Executive Director Review
- **2022-11-18T15:08:13+00:00** (C) Bill Draft Text Available Electronically
- **2022-11-18T15:08:12+00:00** (C) Draft in Final Drafter Review
- **2022-11-17T19:44:35+00:00** (C) Draft in Input/Proofing
- **2022-11-17T16:32:22+00:00** (C) Draft to Drafter - Edit Review
- **2022-11-16T20:53:26+00:00** (C) Draft in Edit
- **2022-11-15T20:26:08+00:00** (C) Draft in Legal Review
- **2022-11-01T20:27:16+00:00** (C) Draft to Requester for Review
- **2022-09-19T13:33:54+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/29e7ab73-e8ae-436d-92cc-4390dd8ef1b0`. Confidence: reported (aggregated from official Montana legislature records).