Legislation: batch C — MO MS MT NC ND NE NH NJ NM NV

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

legislation/us/states/mt/2025/hb-580.md

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+---
+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).
+