---
type: "Bill"
title: "Establish the offense of trespass by unmanned aerial vehicle"
description: "Establish the offense of trespass by unmanned aerial vehicle"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2025"
identifier: "SB 493"
citation: "Montana SB 493 (2025)"
classification: ["bill"]
subjects: ["Crimes"]
status: "enacted"
primary_sponsors: ["Greg Hertz"]
version_count: 42
action_count: 39
vote_count: 7
first_action: "2024-11-11T16:07:32+00:00"
last_action: "2025-05-08T21:44:05+00:00"
source: "openstates"
source_identifier: "ocd-bill/67992b56-f021-492c-a3ca-aef7db317a78"
source_url: "https://bills.legmt.gov/#/laws/bill/2/LC1023?open_tab=sum"
source_hash: "b0ea754e8744582c5266798ac71a513b6c66fb0e65365f01b712f1c5d575e2c0"
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 493 (2025) — Establish the offense of trespass by unmanned aerial vehicle

## Version chain

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

1. **LC1023.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=286265)
2. **SB0493.001.001_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=291845)
3. **SB0493.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=291843)
4. **SB0493.001.001_Amendments-in-Context_final-not condensed(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=291850)
5. **SB0493.001.001_Amendments-in-Context_final-not condensed(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=291851)
6. **SB0493.001.001_Amendments-in-Context_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=291849)
7. **SB0493_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288829)
8. **SB0493_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293069)
9. **SB0493_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293070)
10. **SB0493_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293071)
11. **SB0493_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293072)
12. **SB0493_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=287381)
13. **SB0493_2(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293074)
14. **SB0493_2(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=307230)
15. **SB0493_2(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309258)
16. **SB0493_2(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309261)
17. **SB0493_2(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293075)
18. **SB0493_2(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293076)
19. **SB0493_2(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293077)
20. **SB0493_2(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293078)
21. **SB0493_2(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293079)
22. **SB0493_2(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293080)
23. **SB0493_2(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293542)
24. **SB0493_2(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293718)
25. **SB0493_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293073)
26. **SB0493_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309265)
27. **SB0493_X(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=316929)
28. **SB0493_X(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=320504)
29. **SB0493_X(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321938)
30. **SB0493_X(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321939)
31. **SB0493_X(14).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321940)
32. **SB0493_X(15).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=324776)
33. **SB0493_X(16).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=326069)
34. **SB0493_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309266)
35. **SB0493_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309404)
36. **SB0493_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309405)
37. **SB0493_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309406)
38. **SB0493_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309407)
39. **SB0493_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309634)
40. **SB0493_X(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309635)
41. **SB0493_X(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310993)
42. **SB0493_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309263)

## Votes

- Do Pass — **44–5** (pass) · upper
- Do Concur — **72–27** (pass) · lower
- Do Pass As Amended — **45–5** (pass) · upper
- AMD-SB0493.001.001 Hertz D/PASS — **50–0** (pass) · upper
- Do Concur — **80–20** (pass) · lower
- be_concurred_in — **12–8** (pass) · lower
- do_pass — **7–1** (pass) · upper

## Sponsors

- Greg Hertz — primary (person)

## Timeline

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

- **2024-11-11T16:07:32+00:00** (LC) Drafter Assigned
- **2025-02-17T19:02:33+00:00** (LC) Draft in Legal Review
- **2025-02-18T13:02:45+00:00** (LC) Draft in Edit
- **2025-02-23T20:57:49+00:00** (LC) Draft in Input/Proofing
- **2025-02-24T16:08:17+00:00** (LC) Draft in Final Drafter Review
- **2025-02-24T16:09:22+00:00** (LC) Draft in Assembly
- **2025-02-24T18:36:52+00:00** (LC) Draft Ready for Delivery
- **2025-02-25T19:20:13+00:00** (LC) Draft Delivered to Requester
- **2025-02-25T19:28:04+00:00** (S) Introduced
- **2025-02-26T20:27:22+00:00** (S) First Reading `reading-1`
- **2025-02-26T20:29:00+00:00** (S) Referred to Committee - (S) Judiciary `referral-committee`
- **2025-03-03T20:20:34+00:00** (S) Hearing - (S) Judiciary
- **2025-03-04T19:06:08+00:00** (S) Committee Executive Action--Bill Passed - (S) Judiciary `committee-passage`
- **2025-03-04T20:20:00+00:00** (S) Committee Report--Bill Passed - (S) Judiciary `committee-passage`
- **2025-03-05T20:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2025-03-06T00:34:00+00:00** (S) 2nd Reading Motion to Amend Carried `reading-2`
- **2025-03-06T00:38:00+00:00** (S) 2nd Reading Passed as Amended `reading-2, reading-2`
- **2025-03-07T00:30:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-03-07T01:45:00+00:00** (S) 3rd Reading Passed `passage, reading-3`
- **2025-03-07T16:19:03+00:00** (S) Transmitted to House
- **2025-03-17T15:25:44+00:00** (H) Referred to Committee - (H) Judiciary `referral-committee`
- **2025-03-17T19:15:00+00:00** (H) First Reading `reading-1`
- **2025-03-20T18:22:52+00:00** (S) Fiscal Note Requested
- **2025-03-24T22:28:22+00:00** (S) Fiscal Note Received `receipt`
- **2025-03-24T22:28:29+00:00** (S) Fiscal Note Unsigned
- **2025-04-07T12:37:52+00:00** (H) Hearing - (H) Judiciary
- **2025-04-09T19:03:06+00:00** (H) Committee Executive Action--Bill Concurred - (H) Judiciary
- **2025-04-09T22:07:00+00:00** (H) Committee Report--Bill Concurred - (H) Judiciary
- **2025-04-10T20:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2025-04-10T22:51:00+00:00** (H) 2nd Reading Concurred `reading-2, reading-2`
- **2025-04-11T21:01:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2025-04-11T23:46:00+00:00** (H) 3rd Reading Concurred `passage, reading-3`
- **2025-04-11T23:47:25+00:00** (S) Sent to Enrolling
- **2025-04-13T14:10:14+00:00** (S) Returned from Enrolling
- **2025-04-21T22:00:17+00:00** (S) Signed by President `passage`
- **2025-04-25T20:40:10+00:00** (H) Signed by Speaker `passage`
- **2025-04-25T21:18:10+00:00** (S) Transmitted to Governor `executive-receipt`
- **2025-05-05T19:16:00+00:00** (S) Signed by Governor `executive-signature`
- **2025-05-08T21:44:05+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/67992b56-f021-492c-a3ca-aef7db317a78`. Confidence: reported (aggregated from official Montana legislature records).