---
type: "Bill"
title: "Provide that exempt divisions of land must meet zoning regulations"
description: "Provide that exempt divisions of land must meet zoning regulations"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2021"
identifier: "HB 450"
citation: "Montana HB 450 (2021)"
classification: ["bill"]
subjects: ["Local Government (see also: City Subjects; County Subjects)", "Planning and Development"]
status: "enacted"
primary_sponsors: ["Steve Gunderson"]
version_count: 4
action_count: 55
vote_count: 8
first_action: "2021-01-18"
last_action: "2021-04-30"
source: "openstates"
source_identifier: "ocd-bill/9abab68f-f6b7-4794-9b88-150f4e177695"
source_url: "http://laws.leg.mt.gov/legprd/LAW0210W$BSIV.ActionQuery?P_BILL_NO1=450&P_BLTP_BILL_TYP_CD=HB&Z_ACTION=Find&P_SESS=20211"
source_hash: "0b97c9f34d51c195d04d91df476127e228fffba32a13ebd647cf5291fbc9f054"
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 (2021) — Provide that exempt divisions of land must meet zoning regulations

## Version chain

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

1. **HB0450_1.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0499//HB0450_1.pdf)
2. **HB0450_2.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0499//HB0450_2.pdf)
3. **HB0450_X.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0499//HB0450_X.pdf)
4. **Enrolled** (enrolled) — [source](https://leg.mt.gov/bills/2021/billpdf/HB0450.pdf)

## Votes

- Do Concur — **47–3** (pass) · upper
- DO PASS — **15–2** (pass) · lower
- BE CONCURRED IN AS AMENDED — **10–0** (pass) · upper
- Do Concur — **46–2** (pass) · upper
- Do Concur — **99–0** (pass) · lower
- Do Pass — **96–2** (pass) · lower
- Do Concur — **98–0** (pass) · lower
- Do Pass — **99–1** (pass) · lower

## Sponsors

- Steve Gunderson — primary (person)

## Timeline

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

- **2021-01-18** Draft Request Received
- **2021-02-11** Draft in Legal Review
- **2021-02-12** Draft in Edit
- **2021-02-14** Draft to Drafter - Edit Review
- **2021-02-15** Draft in Input/Proofing
- **2021-02-16** Draft in Final Drafter Review
- **2021-02-16** Bill Draft Text Available Electronically
- **2021-02-16** Draft in Input/Proofing
- **2021-02-16** Draft in Final Drafter Review
- **2021-02-16** Bill Draft Text Available Electronically
- **2021-02-16** Executive Director Review
- **2021-02-16** Draft in Assembly
- **2021-02-16** Draft Ready for Delivery
- **2021-02-16** Executive Director Final Review
- **2021-02-17** Draft Ready for Delivery
- **2021-02-17** Draft Delivered to Requester
- **2021-02-17** Introduced `introduction`
- **2021-02-17** Referred to Committee - (H) Local Government `referral-committee`
- **2021-02-17** First Reading `reading-1`
- **2021-02-17** Introduced Bill Text Available Electronically
- **2021-02-25** Hearing - (H) Local Government
- **2021-02-25** Committee Executive Action--Bill Passed - (H) Local Government `committee-passage`
- **2021-02-26** Committee Report--Bill Passed - (H) Local Government `committee-passage`
- **2021-03-01** Scheduled for 2nd Reading
- **2021-03-01** 2nd Reading Passed `reading-2`
- **2021-03-02** Scheduled for 3rd Reading
- **2021-03-02** 3rd Reading Passed `passage, reading-3`
- **2021-03-02** Transmitted to Senate
- **2021-03-08** First Reading `reading-1`
- **2021-03-08** Referred to Committee - (S) Local Government `referral-committee`
- **2021-03-15** Amendments Available
- **2021-03-15** Hearing - (S) Local Government
- **2021-03-31** Committee Executive Action--Bill Concurred as Amended - (S) Local Government
- **2021-04-01** Committee Report--Bill Concurred as Amended - (S) Local Government
- **2021-04-05** Printed - New Version Available
- **2021-04-09** Scheduled for 2nd Reading
- **2021-04-09** 2nd Reading Pass Consideration
- **2021-04-09** Printed - New Version Available
- **2021-04-12** Scheduled for 2nd Reading
- **2021-04-12** 2nd Reading Concurred `reading-2`
- **2021-04-13** Scheduled for 3rd Reading
- **2021-04-13** 3rd Reading Concurred `passage, reading-3`
- **2021-04-13** Returned to House with Amendments
- **2021-04-21** Scheduled for 2nd Reading
- **2021-04-21** 2nd Reading Senate Amendments Concurred `amendment-amendment, amendment-passage, reading-2`
- **2021-04-22** Scheduled for 3rd Reading
- **2021-04-22** 3rd Reading Passed as Amended by Senate `passage, reading-3`
- **2021-04-22** Sent to Enrolling
- **2021-04-23** Returned from Enrolling
- **2021-04-23** Printed - Enrolled Version Available
- **2021-04-27** Signed by Speaker
- **2021-04-28** Signed by President
- **2021-04-28** 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/9abab68f-f6b7-4794-9b88-150f4e177695`. Confidence: reported (aggregated from official Montana legislature records).