---
type: "Bill"
title: "Clarify water right abandonment"
description: "Clarify water right abandonment"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2025"
identifier: "HB 580"
citation: "Montana HB 580 (2025)"
classification: ["bill"]
subjects: ["Property", "Rule Making", "Water"]
status: "enacted"
primary_sponsors: ["Joshua Seckinger"]
version_count: 50
action_count: 40
vote_count: 8
first_action: "2024-12-08T22:27:32+00:00"
last_action: "2025-05-13T17:01:58+00:00"
source: "openstates"
source_identifier: "ocd-bill/e1c0eed2-6fa9-40ce-8411-af98d8e77c6e"
source_url: "https://bills.legmt.gov/#/laws/bill/2/LC2567?open_tab=sum"
source_hash: "4936d09443c308dc2b3c659557960659dc9dde3033aefa254ae6cd775073eb03"
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 580 (2025) — Clarify water right abandonment

## Version chain

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

1. **HB0580.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289086)
2. **HB0580.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304588)
3. **HB0580.002.001_Amendments-in-Context_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304589)
4. **HB0580_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285024)
5. **HB0580_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289200)
6. **HB0580_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289201)
7. **HB0580_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289202)
8. **HB0580_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289203)
9. **HB0580_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284268)
10. **HB0580_2(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289205)
11. **HB0580_2(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305417)
12. **HB0580_2(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305418)
13. **HB0580_2(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305419)
14. **HB0580_2(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305420)
15. **HB0580_2(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289208)
16. **HB0580_2(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289209)
17. **HB0580_2(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289240)
18. **HB0580_2(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289241)
19. **HB0580_2(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289257)
20. **HB0580_2(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293839)
21. **HB0580_2(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293990)
22. **HB0580_2(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305117)
23. **HB0580_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289204)
24. **HB0580_3(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305422)
25. **HB0580_3(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312576)
26. **HB0580_3(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312579)
27. **HB0580_3(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305423)
28. **HB0580_3(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305424)
29. **HB0580_3(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305469)
30. **HB0580_3(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305470)
31. **HB0580_3(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305471)
32. **HB0580_3(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305472)
33. **HB0580_3(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305484)
34. **HB0580_3(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=307414)
35. **HB0580_3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305421)
36. **HB0580_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312582)
37. **HB0580_X(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=322432)
38. **HB0580_X(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=324872)
39. **HB0580_X(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=326638)
40. **HB0580_X(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=327724)
41. **HB0580_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313206)
42. **HB0580_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313207)
43. **HB0580_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313221)
44. **HB0580_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313222)
45. **HB0580_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317119)
46. **HB0580_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=320683)
47. **HB0580_X(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=322430)
48. **HB0580_X(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=322431)
49. **HB0580_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312580)
50. **LC2567.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=282407)

## Votes

- Do Pass — **97–0** (pass) · lower
- Do Concur — **97–1** (pass) · lower
- be_concurred_in_as_amended — **11–0** (pass) · upper
- Do Pass — **98–1** (pass) · lower
- Do Concur — **49–0** (pass) · upper
- Do Concur — **99–1** (pass) · lower
- Do Concur — **49–1** (pass) · upper
- do_pass_as_amended — **14–0** (pass) · lower

## Sponsors

- Joshua Seckinger — primary (person)

## Timeline

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

- **2024-12-08T22:27:32+00:00** (LC) Drafter Assigned
- **2024-12-08T22:27:32+00:00** (LC) Draft On Hold
- **2025-02-01T22:36:44+00:00** (LC) Draft Taken Off Hold
- **2025-02-10T18:39:02+00:00** (LC) Draft in Legal Review
- **2025-02-10T23:19:09+00:00** (LC) Draft in Edit
- **2025-02-14T15:54:50+00:00** (LC) Draft in Input/Proofing
- **2025-02-15T16:40:39+00:00** (LC) Draft in Final Drafter Review
- **2025-02-16T13:43:38+00:00** (LC) Draft in Assembly
- **2025-02-17T20:03:31+00:00** (LC) Draft Ready for Delivery
- **2025-02-18T17:40:38+00:00** (LC) Draft Delivered to Requester
- **2025-02-19T20:02:43+00:00** (H) Introduced
- **2025-02-20T18:57:19+00:00** (H) Referred to Committee - (H) Natural Resources `referral-committee`
- **2025-02-20T19:51:28+00:00** (H) First Reading `reading-1`
- **2025-02-21T23:10:29+00:00** (H) Hearing - (H) Natural Resources
- **2025-02-27T03:23:34+00:00** (H) Committee Executive Action--Bill Passed as Amended - (H) Natural Resources `committee-passage`
- **2025-02-27T20:11:00+00:00** (H) Committee Report--Bill Passed as Amended - (H) Natural Resources `committee-passage`
- **2025-03-05T22:56:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2025-03-07T16:52:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2025-03-07T18:00:00+00:00** (H) Transmitted to Senate
- **2025-03-14T23:06:17+00:00** (S) First Reading `reading-1`
- **2025-03-14T23:32:00+00:00** (S) Referred to Committee - (S) Natural Resources `referral-committee`
- **2025-04-01T00:46:58+00:00** (S) Hearing - (S) Natural Resources
- **2025-04-04T23:02:32+00:00** (S) Committee Executive Action--Bill Concurred as Amended - (S) Natural Resources
- **2025-04-05T16:12:00+00:00** (S) Committee Report--Bill Concurred as Amended - (S) Natural Resources
- **2025-04-08T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2025-04-08T20:19:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2025-04-09T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-04-09T19:29:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2025-04-09T22:06:16+00:00** (S) Returned to House with Amendments
- **2025-04-15T19:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2025-04-15T20:04:00+00:00** (H) 2nd Reading Senate Amendments Concurred `amendment-amendment, amendment-passage, reading-2, reading-2`
- **2025-04-16T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2025-04-16T21:05:00+00:00** (H) 3rd Reading Passed as Amended by Senate `passage, passage, reading-3, reading-3`
- **2025-04-16T21:52:34+00:00** (H) Sent to Enrolling
- **2025-04-18T14:54:47+00:00** (H) Returned from Enrolling
- **2025-04-29T22:00:37+00:00** (H) Signed by Speaker `passage`
- **2025-05-02T16:30:36+00:00** (S) Signed by President `passage`
- **2025-05-02T17:24:00+00:00** (H) Transmitted to Governor `executive-receipt`
- **2025-05-08T17:11:09+00:00** (H) Signed by Governor `executive-signature`
- **2025-05-13T17:01:58+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/e1c0eed2-6fa9-40ce-8411-af98d8e77c6e`. Confidence: reported (aggregated from official Montana legislature records).