---
type: "Bill"
title: "Require annual voter registration list maintenance"
description: "Require annual voter registration list maintenance"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2021"
identifier: "SB 170"
citation: "Montana SB 170 (2021)"
classification: ["bill"]
subjects: ["Elections (see also: Ballot Issues)"]
status: "enacted"
primary_sponsors: ["Douglas (Doug) Kary"]
version_count: 1
action_count: 48
vote_count: 5
first_action: "2020-07-17"
last_action: "2021-04-09"
source: "openstates"
source_identifier: "ocd-bill/c0ef57e9-b71f-41a2-96c5-bad882a24e4c"
source_url: "http://laws.leg.mt.gov/legprd/LAW0210W$BSIV.ActionQuery?P_BILL_NO1=170&P_BLTP_BILL_TYP_CD=SB&Z_ACTION=Find&P_SESS=20211"
source_hash: "dca5da766a4400872ba1be94424feccd837e813409c48b7362449cb0e61dcc31"
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 170 (2021) — Require annual voter registration list maintenance

## Version chain

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

1. **Introduced** (filed) — [source](https://leg.mt.gov/bills/2021/billpdf/SB0170.pdf)

## Votes

- Do Pass — **31–19** (pass) · upper
- Do Concur — **70–30** (pass) · lower
- BE CONCURRED IN — **12–7** (pass) · lower
- Do Concur — **68–32** (pass) · lower
- Do Pass — **30–19** (pass) · upper

## Sponsors

- Douglas (Doug) Kary — primary (person)

## Timeline

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

- **2020-07-17** Draft Request Received
- **2020-09-23** Draft On Hold
- **2021-01-20** Draft to Requester for Review
- **2021-01-22** Draft in Legal Review
- **2021-01-22** Draft in Edit
- **2021-01-27** Draft to Drafter - Edit Review
- **2021-01-27** Draft in Input/Proofing
- **2021-01-27** Draft in Final Drafter Review
- **2021-01-27** Bill Draft Text Available Electronically
- **2021-01-27** Executive Director Review
- **2021-01-27** Draft in Assembly
- **2021-01-27** Draft Ready for Delivery
- **2021-01-27** Executive Director Final Review
- **2021-01-27** Draft Ready for Delivery
- **2021-01-28** Draft Delivered to Requester
- **2021-01-28** Introduced `introduction`
- **2021-01-28** Introduced Bill Text Available Electronically
- **2021-01-29** Fiscal Note Requested
- **2021-01-29** Referred to Committee - (S) State Administration `referral-committee`
- **2021-01-29** First Reading `reading-1`
- **2021-02-01** Hearing - (S) State Administration
- **2021-02-05** Fiscal Note Received
- **2021-02-05** Fiscal Note Signed
- **2021-02-08** Fiscal Note Printed
- **2021-02-08** Committee Executive Action--Bill Passed - (S) State Administration `committee-passage`
- **2021-02-09** Committee Report--Bill Passed - (S) State Administration `committee-passage`
- **2021-02-11** Scheduled for 2nd Reading
- **2021-02-11** 2nd Reading Passed `reading-2`
- **2021-02-12** Scheduled for 3rd Reading
- **2021-02-12** 3rd Reading Passed `passage, reading-3`
- **2021-02-12** Transmitted to House
- **2021-02-16** Referred to Committee - (H) State Administration `referral-committee`
- **2021-02-16** First Reading `reading-1`
- **2021-02-18** Hearing Canceled - (H) State Administration
- **2021-02-19** Hearing - (H) State Administration
- **2021-02-22** Committee Executive Action--Bill Concurred - (H) State Administration
- **2021-02-22** Committee Report--Bill Concurred - (H) State Administration
- **2021-03-17** Scheduled for 2nd Reading
- **2021-03-17** 2nd Reading Concurred `reading-2`
- **2021-03-18** Scheduled for 3rd Reading
- **2021-03-18** 3rd Reading Concurred `passage, reading-3`
- **2021-03-18** Returned to Senate
- **2021-03-19** Sent to Enrolling
- **2021-03-25** Signed by President
- **2021-03-26** Signed by Speaker
- **2021-03-29** Transmitted to Governor `executive-receipt`
- **2021-04-08** Signed by Governor `executive-signature`
- **2021-04-09** 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/c0ef57e9-b71f-41a2-96c5-bad882a24e4c`. Confidence: reported (aggregated from official Montana legislature records).