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/sb-532.md

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+---
+type: "Bill"
+title: "Revise county zoning to allow accessory dwelling units"
+description: "Revise county zoning to allow accessory dwelling units"
+jurisdiction: "us/states/mt"
+legislature: "Montana Legislature"
+session: "2025"
+identifier: "SB 532"
+citation: "Montana SB 532 (2025)"
+classification: ["bill"]
+subjects: ["Counties", "Environmental Protection", "Housing", "Local Government", "Planning", "Revenue", "Local", "Revenue", "State"]
+status: "enacted"
+primary_sponsors: ["Forrest Mandeville"]
+version_count: 51
+action_count: 40
+vote_count: 8
+first_action: "2024-10-31T16:31:40+00:00"
+last_action: "2025-05-16T16:19:15+00:00"
+source: "openstates"
+source_identifier: "ocd-bill/6040ab87-c5e7-458e-aeee-4de62416d69d"
+source_url: "https://bills.legmt.gov/#/laws/bill/2/LC0705?open_tab=sum"
+source_hash: "7b3495c72d11701a01f2c7cbc1f32077d1902b3abf9259f7531f8b30f333d383"
+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 532 (2025) — Revise county zoning to allow accessory dwelling units
+
+## Version chain
+
+The bill's text revisions, in order — the diff chain from filing to enrollment.
+
+1. **LC0705.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292902)
+2. **SB0532.001.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=301105)
+3. **SB0532.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=301103)
+4. **SB0532.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310282)
+5. **SB0532.002.001_Amendments-in-Context_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310291)
+6. **SB0532.002.002_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310292)
+7. **SB0532.002.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310283)
+8. **SB0532.002.003_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310294)
+9. **SB0532.002.003_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310288)
+10. **SB0532.002.004_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311600)
+11. **SB0532.002.004_combo_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311601)
+12. **SB0532_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=296009)
+13. **SB0532_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304080)
+14. **SB0532_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304081)
+15. **SB0532_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304082)
+16. **SB0532_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304083)
+17. **SB0532_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=294804)
+18. **SB0532_2(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304085)
+19. **SB0532_2(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312045)
+20. **SB0532_2(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312046)
+21. **SB0532_2(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312047)
+22. **SB0532_2(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312048)
+23. **SB0532_2(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304086)
+24. **SB0532_2(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304087)
+25. **SB0532_2(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304101)
+26. **SB0532_2(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304105)
+27. **SB0532_2(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304106)
+28. **SB0532_2(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304133)
+29. **SB0532_2(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305394)
+30. **SB0532_2(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311358)
+31. **SB0532_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304084)
+32. **SB0532_3(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312080)
+33. **SB0532_3(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315333)
+34. **SB0532_3(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318641)
+35. **SB0532_3(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318644)
+36. **SB0532_3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312079)
+37. **SB0532_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318646)
+38. **SB0532_X(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=323040)
+39. **SB0532_X(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=323041)
+40. **SB0532_X(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325004)
+41. **SB0532_X(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325949)
+42. **SB0532_X(14).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=327407)
+43. **SB0532_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318647)
+44. **SB0532_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319066)
+45. **SB0532_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319067)
+46. **SB0532_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319068)
+47. **SB0532_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319134)
+48. **SB0532_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319135)
+49. **SB0532_X(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321020)
+50. **SB0532_X(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=323039)
+51. **SB0532_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318645)
+
+## Votes
+
+- Do Concur — **76–24** (pass) · lower
+- do_pass_as_amended — **9–1** (pass) · upper
+- be_concurred_in_as_amended — **16–1** (pass) · lower
+- Do Pass — **41–7** (pass) · upper
+- Do Pass — **45–4** (pass) · upper
+- Do Pass — **47–2** (pass) · upper
+- Do Pass — **38–11** (pass) · upper
+- Do Concur — **75–24** (pass) · lower
+
+## Sponsors
+
+- Forrest Mandeville — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2024-10-31T16:31:40+00:00** (LC) Drafter Assigned
+- **2025-02-20T00:41:05+00:00** (LC) Draft in Legal Review
+- **2025-02-25T18:32:52+00:00** (LC) Draft in Edit
+- **2025-03-05T20:43:19+00:00** (LC) Draft in Input/Proofing
+- **2025-03-06T18:11:13+00:00** (LC) Draft in Final Drafter Review
+- **2025-03-12T14:57:12+00:00** (LC) Draft in Assembly
+- **2025-03-14T15:27:21+00:00** (LC) Draft Ready for Delivery
+- **2025-03-18T13:57:51+00:00** (LC) Draft Delivered to Requester
+- **2025-03-18T15:22:13+00:00** (S) Introduced
+- **2025-03-18T19:15:12+00:00** (S) First Reading `reading-1`
+- **2025-03-20T17:18:11+00:00** (S) Referred to Committee - (S) Local Government `referral-committee`
+- **2025-03-27T14:44:29+00:00** (S) Hearing - (S) Local Government
+- **2025-04-02T22:40:21+00:00** (S) Committee Executive Action--Bill Passed as Amended - (S) Local Government `committee-passage`
+- **2025-04-03T20:43:00+00:00** (S) Committee Report--Bill Passed as Amended - (S) Local Government `committee-passage`
+- **2025-04-04T08:37:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
+- **2025-04-04T20:50:00+00:00** (S) 2nd Reading Passed `reading-2, reading-2`
+- **2025-04-05T08:38:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
+- **2025-04-05T14:20:00+00:00** (S) 3rd Reading Passed `passage, reading-3`
+- **2025-04-05T16:50:18+00:00** (S) Transmitted to House
+- **2025-04-07T15:50:07+00:00** (H) Referred to Committee - (H) Local Government `referral-committee`
+- **2025-04-07T19:50:17+00:00** (H) First Reading `reading-1`
+- **2025-04-07T22:14:36+00:00** (H) Hearing - (H) Local Government
+- **2025-04-15T22:58:33+00:00** (H) Committee Executive Action--Bill Concurred as Amended - (H) Local Government
+- **2025-04-16T19:31:00+00:00** (H) Committee Report--Bill Concurred as Amended - (H) Local Government
+- **2025-04-22T19:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
+- **2025-04-22T22:11:00+00:00** (H) 2nd Reading Concurred `reading-2, reading-2`
+- **2025-04-23T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
+- **2025-04-23T21:37:00+00:00** (H) 3rd Reading Concurred `passage, reading-3`
+- **2025-04-23T22:54:58+00:00** (H) Returned to Senate with Amendments
+- **2025-04-25T15:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
+- **2025-04-25T15:56:00+00:00** (S) 2nd Reading House Amendments Concurred `amendment-amendment, amendment-passage, reading-2, reading-2`
+- **2025-04-28T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
+- **2025-04-28T21:44:00+00:00** (S) 3rd Reading Passed as Amended by House `passage, passage, reading-3, reading-3`
+- **2025-04-29T13:58:45+00:00** (S) Sent to Enrolling
+- **2025-04-30T04:22:37+00:00** (S) Returned from Enrolling
+- **2025-05-02T16:00:06+00:00** (S) Signed by President `passage`
+- **2025-05-05T19:00:51+00:00** (H) Signed by Speaker `passage`
+- **2025-05-05T19:55:00+00:00** (S) Transmitted to Governor `executive-receipt`
+- **2025-05-13T18:20:00+00:00** (S) Signed by Governor `executive-signature`
+- **2025-05-16T16:19:15+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/6040ab87-c5e7-458e-aeee-4de62416d69d`. Confidence: reported (aggregated from official Montana legislature records).
+