---
type: "Bill"
title: "Prohibit abortion of unborn viable children"
description: "Prohibit abortion of unborn viable children"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2023"
identifier: "HB 575"
citation: "Montana HB 575 (2023)"
classification: ["bill"]
subjects: ["Abortion"]
status: "enacted"
primary_sponsors: ["Lola Sheldon-Galloway"]
version_count: 5
action_count: 49
vote_count: 8
first_action: "2022-12-11T19:59:57+00:00"
last_action: "2023-05-04T18:00:17+00:00"
source: "openstates"
source_identifier: "ocd-bill/9c2efa24-1307-4d9f-96ee-d91d942777c6"
source_url: "https://bills.legmt.gov/#/bill/20231/LC3744"
source_hash: "071ba04819bc0035f13bf72b95d562635f79cd19cf14da44f8e653e83148e8b5"
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 575 (2023) — Prohibit abortion of unborn viable children

## Version chain

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

1. **HB0575.001.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9005)
2. **HB0575.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9006)
3. **HB0575_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9007)
4. **HB0575_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9009)
5. **HB0575_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=9008)

## Votes

- (H) Committee Executive Action--Bill Passed — **13–6** (pass) · lower
- (S) Committee Executive Action--Bill Concurred as Amended — **7–4** (pass) · upper
- (H) 3rd Reading Passed as Amended by Senate — **66–32** (pass) · lower
- (S) 3rd Reading Concurred — **30–18** (pass) · upper
- (H) 3rd Reading Passed — **68–31** (pass) · lower
- (H) 2nd Reading Senate Amendments Concurred — **64–36** (pass) · lower
- (S) 2nd Reading Concurred — **30–20** (pass) · upper
- (H) 2nd Reading Passed — **67–31** (pass) · lower

## Sponsors

- Lola Sheldon-Galloway — primary (person)

## Timeline

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

- **2023-05-04T18:00:17+00:00** Chapter Number Assigned `became-law`
- **2023-05-03T15:55:00+00:00** (H) Signed by Governor `executive-signature`
- **2023-04-26T15:10:00+00:00** (H) Transmitted to Governor `executive-receipt`
- **2023-04-25T21:50:00+00:00** (S) Signed by President `passage`
- **2023-04-25T21:00:00+00:00** (H) Signed by Speaker `passage`
- **2023-04-24T21:45:34+00:00** (C) Printed - Enrolled Version Available `enrolled`
- **2023-04-24T21:45:33+00:00** (H) Returned from Enrolling
- **2023-04-20T20:13:35+00:00** (H) Sent to Enrolling
- **2023-04-20T19:26:00+00:00** (H) 3rd Reading Passed as Amended by Senate `passage, passage, reading-3, reading-3`
- **2023-04-20T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2023-04-19T19:51:00+00:00** (H) 2nd Reading Senate Amendments Concurred `amendment-amendment, amendment-passage, reading-2, reading-2`
- **2023-04-19T19:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2023-04-13T15:25:34+00:00** (S) Returned to House with Amendments
- **2023-04-12T19:55:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2023-04-12T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2023-04-11T19:31:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2023-04-11T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-04-05T20:01:12+00:00** (C) Printed - New Version Available
- **2023-04-05T19:45:00+00:00** (S) Committee Report--Bill Concurred as Amended
- **2023-04-04T14:00:00+00:00** (S) Committee Executive Action--Bill Concurred as Amended
- **2023-03-29T01:25:51+00:00** (C) Amendments Available
- **2023-03-28T14:00:00+00:00** (S) Hearing
- **2023-03-14T14:19:29+00:00** (S) Referred to Committee `referral-committee`
- **2023-03-10T00:13:52+00:00** (S) First Reading `reading-1`
- **2023-03-03T17:19:36+00:00** (H) Transmitted to Senate
- **2023-03-03T04:18:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2023-03-01T18:28:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2023-02-24T23:29:00+00:00** (H) Committee Report--Bill Passed `committee-passage`
- **2023-02-24T14:00:00+00:00** (H) Committee Executive Action--Bill Passed `committee-passage`
- **2023-02-23T14:00:23+00:00** (H) Hearing
- **2023-02-16T20:31:43+00:00** (H) First Reading `reading-1`
- **2023-02-16T17:52:55+00:00** (H) Referred to Committee `referral-committee`
- **2023-02-16T05:04:10+00:00** (C) Introduced Bill Text Available Electronically
- **2023-02-16T01:34:26+00:00** (H) Introduced
- **2023-02-15T23:59:14+00:00** (C) Draft Delivered to Requester
- **2023-02-15T23:08:48+00:00** (C) Draft Ready for Delivery
- **2023-02-15T22:36:23+00:00** (C) Executive Director Final Review
- **2023-02-15T22:36:07+00:00** (C) Draft Ready for Delivery
- **2023-02-15T22:04:09+00:00** (C) Draft in Assembly
- **2023-02-15T22:00:52+00:00** (C) Executive Director Review
- **2023-02-15T21:54:46+00:00** (C) Bill Draft Text Available Electronically
- **2023-02-15T21:54:45+00:00** (C) Draft in Final Drafter Review
- **2023-02-15T21:44:53+00:00** (C) Draft in Input/Proofing
- **2023-02-15T21:41:45+00:00** (C) Draft to Drafter - Edit Review
- **2023-02-15T21:20:34+00:00** (C) Draft in Edit
- **2023-02-15T20:54:26+00:00** (C) Draft in Legal Review
- **2023-02-11T00:29:53+00:00** (C) Draft to Requester for Review
- **2023-01-16T22:22:54+00:00** (C) Draft On Hold
- **2022-12-11T19:59:57+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/9c2efa24-1307-4d9f-96ee-d91d942777c6`. Confidence: reported (aggregated from official Montana legislature records).