---
type: "Bill"
title: "Generally revise privacy laws related to biometric, genetic, and neural data"
description: "Generally revise privacy laws related to biometric, genetic, and neural data"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2025"
identifier: "SB 163"
citation: "Montana SB 163 (2025)"
classification: ["bill"]
subjects: ["Communications", "Information Technology", "Privacy"]
status: "enacted"
primary_sponsors: ["Daniel Zolnikov"]
version_count: 33
action_count: 45
vote_count: 7
first_action: "2024-08-27T13:27:32+00:00"
last_action: "2025-05-05T17:37:09+00:00"
source: "openstates"
source_identifier: "ocd-bill/504df5df-e0e5-49e6-a091-b9afbf2dbdbb"
source_url: "https://bills.legmt.gov/#/laws/bill/2/LC0005?open_tab=sum"
source_hash: "1ff0578b9f1d395dc5e68875ed754ac9d16059732248918b780977a2900199cf"
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 163 (2025) — Generally revise privacy laws related to biometric, genetic, and neural data

## Version chain

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

1. **LC0005.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=270037)
2. **SB0163.001.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=282999)
3. **SB0163.001.003_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284996)
4. **SB0163.001.004_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285556)
5. **SB0163_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=272437)
6. **SB0163_1(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285986)
7. **SB0163_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=275349)
8. **SB0163_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=276073)
9. **SB0163_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=276758)
10. **SB0163_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285882)
11. **SB0163_1(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285883)
12. **SB0163_1(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285983)
13. **SB0163_1(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285984)
14. **SB0163_1(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285985)
15. **SB0163_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=271881)
16. **SB0163_2(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285988)
17. **SB0163_2(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285989)
18. **SB0163_2(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=286005)
19. **SB0163_2(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=286013)
20. **SB0163_2(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=286014)
21. **SB0163_2(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=286019)
22. **SB0163_2(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=299121)
23. **SB0163_2(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304222)
24. **SB0163_2(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304223)
25. **SB0163_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285987)
26. **SB0163_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=316739)
27. **SB0163_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=320319)
28. **SB0163_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321665)
29. **SB0163_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321666)
30. **SB0163_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321667)
31. **SB0163_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=324716)
32. **SB0163_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325547)
33. **SB0163_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310796)

## Votes

- Do Pass — **50–0** (pass) · upper
- Do Concur — **99–0** (pass) · lower
- Do Pass — **50–0** (pass) · upper
- Do Pass — **50–0** (pass) · upper
- do_pass — **13–0** (pass) · upper
- Do Pass — **49–1** (pass) · upper
- Do Concur — **100–0** (pass) · lower

## Sponsors

- Daniel Zolnikov — primary (person)

## Timeline

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

- **2024-08-27T13:27:32+00:00** (LC) Drafter Assigned
- **2025-01-01T17:21:15+00:00** (LC) Draft in Legal Review
- **2025-01-01T19:50:37+00:00** (LC) Draft in Edit
- **2025-01-08T16:19:57+00:00** (LC) Draft in Input/Proofing
- **2025-01-09T14:49:08+00:00** (LC) Draft in Final Drafter Review
- **2025-01-09T20:43:52+00:00** (LC) Draft in Assembly
- **2025-01-13T23:40:21+00:00** (LC) Draft Ready for Delivery
- **2025-01-15T22:23:43+00:00** (LC) Draft Delivered to Requester
- **2025-01-15T22:40:29+00:00** (S) Introduced
- **2025-01-16T20:15:48+00:00** (S) First Reading `reading-1`
- **2025-01-17T14:14:00+00:00** (S) Referred to Committee - (S) Energy, Technology & Federal Relations `referral-committee`
- **2025-01-21T01:31:47+00:00** (S) Hearing - (S) Energy, Technology & Federal Relations
- **2025-01-23T22:00:00+00:00** (S) Committee Executive Action--Bill Passed - (S) Energy, Technology & Federal Relations `committee-passage`
- **2025-01-24T21:02:00+00:00** (S) Committee Report--Bill Passed - (S) Energy, Technology & Federal Relations `committee-passage`
- **2025-01-27T09:26:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2025-01-27T20:32:00+00:00** (S) 2nd Reading Passed `reading-2, reading-2`
- **2025-01-28T09:25:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-01-28T21:59:00+00:00** (S) 3rd Reading Passed `passage, reading-3`
- **2025-01-28T23:13:03+00:00** (S) Transmitted to House
- **2025-01-29T18:16:45+00:00** (H) Referred to Committee - (H) Energy, Technology and Federal Relations `referral-committee`
- **2025-01-29T20:16:01+00:00** (H) First Reading `reading-1`
- **2025-02-17T20:58:31+00:00** (H) Hearing - (H) Energy, Technology and Federal Relations
- **2025-02-19T20:45:41+00:00** (H) Fiscal Note Requested
- **2025-02-19T21:56:27+00:00** (S) Fiscal Note Requested
- **2025-02-21T23:47:35+00:00** (H) Committee Executive Action--Bill Concurred - (H) Energy, Technology and Federal Relations
- **2025-02-22T16:25:00+00:00** (H) Committee Report--Bill Concurred as Amended - (H) Energy, Technology and Federal Relations
- **2025-02-24T21:56:35+00:00** (S) Fiscal Note Received `receipt`
- **2025-02-24T22:02:36+00:00** (S) Fiscal Note Signed
- **2025-02-25T15:42:12+00:00** (S) Fiscal Note Printed
- **2025-03-25T19:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2025-03-25T20:55:00+00:00** (H) 2nd Reading Concurred `reading-2, reading-2`
- **2025-03-26T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2025-03-26T19:44:00+00:00** (H) 3rd Reading Concurred `passage, reading-3`
- **2025-03-26T21:10:41+00:00** (H) Returned to Senate with Amendments
- **2025-04-02T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2025-04-02T19:19:00+00:00** (S) 2nd Reading House Amendments Concurred `amendment-amendment, amendment-passage, reading-2, reading-2`
- **2025-04-03T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-04-03T19:20:00+00:00** (S) 3rd Reading Passed as Amended by House `passage, passage, reading-3, reading-3`
- **2025-04-03T21:46:00+00:00** (S) Sent to Enrolling
- **2025-04-05T14:51:44+00:00** (S) Returned from Enrolling
- **2025-04-14T00:00:00+00:00** (S) Signed by President `passage`
- **2025-04-18T19:00:38+00:00** (H) Signed by Speaker `passage`
- **2025-04-22T15:18:05+00:00** (S) Transmitted to Governor `executive-receipt`
- **2025-05-01T18:33:04+00:00** (S) Signed by Governor `executive-signature`
- **2025-05-05T17:37:09+00:00** 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/504df5df-e0e5-49e6-a091-b9afbf2dbdbb`. Confidence: reported (aggregated from official Montana legislature records).