---
type: "Bill"
title: "Revise environmental policy act"
description: "Revise environmental policy act"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2023"
identifier: "HB 971"
citation: "Montana HB 971 (2023)"
classification: ["bill"]
subjects: ["Appropriations (see also: State Finance)", "Environmental Protection", "Federal Government"]
status: "enacted"
primary_sponsors: ["Joshua Kassmier"]
version_count: 11
action_count: 69
vote_count: 10
first_action: "2022-12-04T00:14:00+00:00"
last_action: "2023-05-09T14:37:47+00:00"
source: "openstates"
source_identifier: "ocd-bill/a896662a-7eb0-4040-b6f1-b5f2647d1c5b"
source_url: "https://bills.legmt.gov/#/bill/20231/LC2722"
source_hash: "c7b3598d737804ea5e8f1805500685196d931c91020f9ff4ae3e79fe84366a27"
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 971 (2023) — Revise environmental policy act

## Version chain

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

1. **HB0971.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=12146)
2. **HB0971.002.001.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=12152)
3. **HB0971.002.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=12150)
4. **HB0971.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=12147)
5. **HB0971.003.001.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=12151)
6. **HB0971.003.001_Amendments-in-Context_final-condensed (1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=12148)
7. **HB0971.003.001_Amendments-in-Context_final-full (1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=12149)
8. **HB0971_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=12155)
9. **HB0971_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=12153)
10. **HB0971_3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=12156)
11. **HB0971_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=12154)

## Votes

- (S) 3rd Reading Concurred — **34–15** (pass) · upper
- (H) 2nd Reading Motion to Amend Carried — **100–0** (pass) · lower
- (S) 2nd Reading Concurred — **34–16** (pass) · upper
- (S) Committee Executive Action--Bill Concurred — **7–4** (pass) · upper
- (H) On Motion Rules Suspended — **67–31** (pass) · lower
- (H) 3rd Reading Passed — **70–28** (pass) · lower
- (S) Rules Suspended to Accept Late Transmittal of Bill — **35–14** (pass) · upper
- (H) Committee Executive Action--Bill Passed as Amended — **10–5** (pass) · lower
- (H) 2nd Reading Passed as Amended — **71–29** (pass) · lower
- (S) 2nd Reading Motion to Amend Failed — **18–32** (fail) · upper

## Sponsors

- Joshua Kassmier — primary (person)

## Timeline

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

- **2023-05-09T14:37:47+00:00** Chapter Number Assigned `became-law`
- **2023-05-08T23:14:00+00:00** (H) Signed by Governor `executive-signature`
- **2023-05-08T16:20:00+00:00** (H) Transmitted to Governor `executive-receipt`
- **2023-05-04T23:00:00+00:00** (S) Signed by President `passage`
- **2023-05-04T20:00:00+00:00** (H) Signed by Speaker `passage`
- **2023-05-02T21:23:46+00:00** (C) Printed - Enrolled Version Available `enrolled`
- **2023-05-02T21:23:45+00:00** (H) Returned from Enrolling
- **2023-05-01T17:12:52+00:00** (H) Sent to Enrolling
- **2023-04-29T00:26:32+00:00** (S) Returned to House
- **2023-04-28T19:53:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2023-04-28T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2023-04-27T19:41:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2023-04-27T19:31:00+00:00** (S) 2nd Reading Motion to Amend Failed `amendment-failure, failure, reading-2`
- **2023-04-27T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-04-26T21:33:00+00:00** (S) Committee Report--Bill Concurred
- **2023-04-26T15:00:01+00:00** (S) Committee Executive Action--Bill Concurred
- **2023-04-26T15:00:00+00:00** (S) Hearing
- **2023-04-25T21:19:19+00:00** (C) Draft Delivered to Requester
- **2023-04-24T22:41:00+00:00** (S) First Reading `reading-1`
- **2023-04-24T21:04:00+00:00** (S) Referred to Committee `referral-committee`
- **2023-04-24T20:49:00+00:00** (S) Rules Suspended to Accept Late Transmittal of Bill
- **2023-04-24T20:39:23+00:00** (H) Transmitted to Senate
- **2023-04-24T19:35:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2023-04-24T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2023-04-21T21:34:42+00:00** (C) Printed - New Version Available
- **2023-04-21T19:28:00+00:00** (H) 2nd Reading Passed as Amended `reading-2, reading-2`
- **2023-04-21T19:27:00+00:00** (H) 2nd Reading Motion to Amend Carried `reading-2`
- **2023-04-21T19:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2023-04-18T19:28:22+00:00** (C) Printed - New Version Available
- **2023-04-18T19:13:00+00:00** (H) Committee Report--Bill Passed as Amended `committee-passage`
- **2023-04-18T00:45:00+00:00** (H) Committee Executive Action--Bill Passed as Amended `committee-passage`
- **2023-04-18T00:30:00+00:00** (H) Sponsor List Modified
- **2023-04-17T21:00:00+00:00** (H) Hearing
- **2023-04-17T18:38:52+00:00** (C) Amendments Available
- **2023-04-14T23:45:23+00:00** (C) Introduced Bill Text Available Electronically
- **2023-04-14T22:11:29+00:00** (H) Referred to Committee `referral-committee`
- **2023-04-14T21:16:00+00:00** (H) First Reading `reading-1`
- **2023-04-14T19:56:05+00:00** (H) Introduced
- **2023-04-14T19:51:00+00:00** (H) On Motion Rules Suspended
- **2023-04-14T19:47:51+00:00** (C) Draft in Assembly
- **2023-04-14T19:43:21+00:00** (C) Draft Delivered to Requester
- **2023-04-14T17:45:57+00:00** (C) Draft in Assembly
- **2023-04-14T17:40:15+00:00** (C) Executive Director Review
- **2023-04-14T17:38:06+00:00** (C) Bill Draft Text Available Electronically
- **2023-04-14T17:38:05+00:00** (C) Draft in Final Drafter Review
- **2023-04-14T17:20:45+00:00** (C) Draft in Input/Proofing
- **2023-04-14T17:14:17+00:00** (C) Draft to Drafter - Edit Review
- **2023-04-14T16:31:37+00:00** (C) Draft in Edit
- **2023-04-14T16:02:42+00:00** (C) Draft in Legal Review
- **2023-04-14T15:39:30+00:00** (C) Draft to Requester for Review
- **2023-04-13T23:09:16+00:00** (C) Draft to Requester for Review
- **2023-04-13T20:28:35+00:00** (C) Draft Back for Redo
- **2023-04-12T19:15:14+00:00** (C) Executive Director Final Review
- **2023-04-12T19:08:52+00:00** (C) Draft in Assembly
- **2023-04-12T16:04:31+00:00** (C) Bill Draft Text Available Electronically
- **2023-04-12T16:04:30+00:00** (C) Draft in Final Drafter Review
- **2023-04-12T16:00:27+00:00** (C) Draft in Input/Proofing
- **2023-04-12T15:50:14+00:00** (C) Draft Ready for Delivery
- **2023-04-12T14:02:31+00:00** (C) Executive Director Final Review
- **2023-04-12T13:58:24+00:00** (C) Draft in Assembly
- **2023-04-12T13:53:02+00:00** (C) Executive Director Review
- **2023-04-12T13:49:11+00:00** (C) Bill Draft Text Available Electronically
- **2023-04-12T13:49:10+00:00** (C) Draft in Final Drafter Review
- **2023-04-11T23:24:15+00:00** (C) Draft in Input/Proofing
- **2023-04-11T23:22:52+00:00** (C) Draft to Drafter - Edit Review
- **2023-04-11T22:53:00+00:00** (C) Draft in Edit
- **2023-04-11T22:48:51+00:00** (C) Draft in Legal Review
- **2023-04-11T20:28:53+00:00** (C) Draft to Requester for Review
- **2022-12-04T00:14:00+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/a896662a-7eb0-4040-b6f1-b5f2647d1c5b`. Confidence: reported (aggregated from official Montana legislature records).