---
type: "Bill"
title: "Generally revise the board of environmental review"
description: "Generally revise the board of environmental review"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2021"
identifier: "SB 233"
citation: "Montana SB 233 (2021)"
classification: ["bill"]
subjects: ["Environmental Protection", "State Government"]
status: "enacted"
primary_sponsors: ["Duane Ankney"]
version_count: 4
action_count: 68
vote_count: 6
first_action: "2020-01-16"
last_action: "2021-04-30"
source: "openstates"
source_identifier: "ocd-bill/a97fe86a-0c74-4f29-a5c3-1e40ded041c3"
source_url: "http://laws.leg.mt.gov/legprd/LAW0210W$BSIV.ActionQuery?P_BILL_NO1=233&P_BLTP_BILL_TYP_CD=SB&Z_ACTION=Find&P_SESS=20211"
source_hash: "5d1c07c7d76fde0d3eb4a3c435f10a1fbbfe4f181867167b4bfce4d9e95a70c9"
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 SB 233 (2021) — Generally revise the board of environmental review

## Version chain

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

1. **SB0233_1.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/SB0299//SB0233_1.pdf)
2. **SB0233_2.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/SB0299//SB0233_2.pdf)
3. **SB0233_X.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/SB0299//SB0233_X.pdf)
4. **Enrolled** (enrolled) — [source](https://leg.mt.gov/bills/2021/billpdf/SB0233.pdf)

## Votes

- Do Pass — **50–0** (pass) · upper
- Do Concur — **87–13** (pass) · lower
- Do Concur — **90–10** (pass) · lower
- BE CONCURRED IN — **14–1** (pass) · lower
- DO PASS AS AMENDED — **12–0** (pass) · upper
- Do Pass — **49–0** (pass) · upper

## Sponsors

- Duane Ankney — primary (person)

## Timeline

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

- **2020-01-16** Draft Request Received
- **2020-12-03** Draft to Requester for Review
- **2020-12-15** Draft in Legal Review
- **2020-12-16** Draft in Edit
- **2021-01-10** Draft to Drafter - Edit Review
- **2021-01-15** Draft in Input/Proofing
- **2021-01-18** Draft in Final Drafter Review
- **2021-01-18** Bill Draft Text Available Electronically
- **2021-01-19** Executive Director Review
- **2021-01-19** Draft in Assembly
- **2021-01-19** Draft Ready for Delivery
- **2021-01-19** Executive Director Final Review
- **2021-01-20** Draft Ready for Delivery
- **2021-02-08** Draft Back for Redo
- **2021-02-08** Draft in Legal Review
- **2021-02-09** Draft in Edit
- **2021-02-09** Draft to Drafter - Edit Review
- **2021-02-09** Draft in Input/Proofing
- **2021-02-09** Draft in Final Drafter Review
- **2021-02-09** Bill Draft Text Available Electronically
- **2021-02-09** Executive Director Review
- **2021-02-09** Draft in Input/Proofing
- **2021-02-09** Draft in Final Drafter Review
- **2021-02-09** Bill Draft Text Available Electronically
- **2021-02-10** Executive Director Review
- **2021-02-10** Draft in Assembly
- **2021-02-11** Draft Ready for Delivery
- **2021-02-11** Executive Director Final Review
- **2021-02-11** Draft Ready for Delivery
- **2021-02-11** Draft Delivered to Requester
- **2021-02-11** Introduced `introduction`
- **2021-02-11** Fiscal Note Requested
- **2021-02-11** First Reading `reading-1`
- **2021-02-11** Introduced Bill Text Available Electronically
- **2021-02-12** Referred to Committee - (S) Natural Resources `referral-committee`
- **2021-02-18** Fiscal Note Received
- **2021-02-18** Fiscal Note Printed
- **2021-02-20** Amendments Available
- **2021-02-22** Hearing - (S) Natural Resources
- **2021-02-24** Committee Executive Action--Bill Passed as Amended - (S) Natural Resources `committee-passage`
- **2021-02-25** Printed - New Version Available
- **2021-02-25** Committee Report--Bill Passed as Amended - (S) Natural Resources `committee-passage`
- **2021-03-01** Scheduled for 2nd Reading
- **2021-03-01** 2nd Reading Passed `reading-2`
- **2021-03-01** Scheduled for 3rd Reading
- **2021-03-02** 3rd Reading Passed `passage, reading-3`
- **2021-03-02** Transmitted to House
- **2021-03-02** Referred to Committee - (H) Natural Resources `referral-committee`
- **2021-03-08** First Reading `reading-1`
- **2021-03-26** Hearing - (H) Natural Resources
- **2021-03-29** Revised Fiscal Note Requested
- **2021-03-29** Committee Executive Action--Bill Concurred - (H) Natural Resources
- **2021-03-30** Committee Report--Bill Concurred - (H) Natural Resources
- **2021-04-01** Revised Fiscal Note Received
- **2021-04-06** Revised Fiscal Note Printed
- **2021-04-09** Scheduled for 2nd Reading
- **2021-04-09** 2nd Reading Concurred `reading-2`
- **2021-04-12** Scheduled for 3rd Reading
- **2021-04-12** 3rd Reading Concurred `passage, reading-3`
- **2021-04-12** Returned to Senate
- **2021-04-13** Sent to Enrolling
- **2021-04-23** Returned from Enrolling
- **2021-04-23** Printed - Enrolled Version Available
- **2021-04-27** Signed by President
- **2021-04-27** Signed by Speaker
- **2021-04-27** Transmitted to Governor `executive-receipt`
- **2021-04-30** Signed by Governor `executive-signature`
- **2021-04-30** Chapter Number Assigned `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/a97fe86a-0c74-4f29-a5c3-1e40ded041c3`. Confidence: reported (aggregated from official Montana legislature records).