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-424.md

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+---
+type: "Bill"
+title: "Revise taxes for class 17 data center property"
+description: "Revise taxes for class 17 data center property"
+jurisdiction: "us/states/mt"
+legislature: "Montana Legislature"
+session: "2025"
+identifier: "HB 424"
+citation: "Montana HB 424 (2025)"
+classification: ["bill"]
+subjects: ["Energy", "Revenue", "State", "Taxation", "Taxation--Property"]
+status: "enacted"
+primary_sponsors: ["Katie Zolnikov"]
+version_count: 89
+action_count: 50
+vote_count: 8
+first_action: "2024-12-13T14:39:18+00:00"
+last_action: "2025-05-19T21:49:53+00:00"
+source: "openstates"
+source_identifier: "ocd-bill/56803e66-6394-42a0-8289-ec1bb1cbb24a"
+source_url: "https://bills.legmt.gov/#/laws/bill/2/LC3009?open_tab=sum"
+source_hash: "df79afd71de571fc696c4073dea72c140b7a4d8150532501eb1c935aa53b99e1"
+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 424 (2025) — Revise taxes for class 17 data center property
+
+## Version chain
+
+The bill's text revisions, in order — the diff chain from filing to enrollment.
+
+1. **HB0424.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=283941)
+2. **HB0424.002.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295418)
+3. **HB0424.002.001_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295613)
+4. **HB0424.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295417)
+5. **HB0424.002.002_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295433)
+6. **HB0424.002.002_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295614)
+7. **HB0424.002.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295434)
+8. **HB0424.002.003_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295707)
+9. **HB0424.002.003_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295902)
+10. **HB0424.002.003_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295706)
+11. **HB0424.002.004_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295708)
+12. **HB0424.002.004_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295903)
+13. **HB0424.002.004_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=295709)
+14. **HB0424.002.006_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297216)
+15. **HB0424.002.006_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297949)
+16. **HB0424.002.006_Amendments-in-Context_final-full(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297969)
+17. **HB0424.002.006_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297215)
+18. **HB0424.002.007_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297545)
+19. **HB0424.002.007_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297948)
+20. **HB0424.002.007_Amendments-in-Context_final-full(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297970)
+21. **HB0424.002.007_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297544)
+22. **HB0424.002.008_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=301033)
+23. **HB0424.002.008_combo_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297975)
+24. **HB0424_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=280086)
+25. **HB0424_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284473)
+26. **HB0424_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284475)
+27. **HB0424_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284477)
+28. **HB0424_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284479)
+29. **HB0424_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=279956)
+30. **HB0424_2(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284483)
+31. **HB0424_2(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297738)
+32. **HB0424_2(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297932)
+33. **HB0424_2(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297976)
+34. **HB0424_2(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297977)
+35. **HB0424_2(14).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297978)
+36. **HB0424_2(15).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297979)
+37. **HB0424_2(16).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=307093)
+38. **HB0424_2(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284484)
+39. **HB0424_2(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284485)
+40. **HB0424_2(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284544)
+41. **HB0424_2(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284545)
+42. **HB0424_2(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284546)
+43. **HB0424_2(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284547)
+44. **HB0424_2(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284548)
+45. **HB0424_2(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284550)
+46. **HB0424_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284481)
+47. **HB0424_3(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297740)
+48. **HB0424_3(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297982)
+49. **HB0424_3(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297989)
+50. **HB0424_3(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297991)
+51. **HB0424_3(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297992)
+52. **HB0424_3(14).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297994)
+53. **HB0424_3(15).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297995)
+54. **HB0424_3(16).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297996)
+55. **HB0424_3(17).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=298003)
+56. **HB0424_3(18).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=299116)
+57. **HB0424_3(19).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=306209)
+58. **HB0424_3(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297741)
+59. **HB0424_3(20).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=307125)
+60. **HB0424_3(21).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315066)
+61. **HB0424_3(22).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315068)
+62. **HB0424_3(23).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315069)
+63. **HB0424_3(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297759)
+64. **HB0424_3(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297760)
+65. **HB0424_3(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297920)
+66. **HB0424_3(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297921)
+67. **HB0424_3(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297922)
+68. **HB0424_3(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297923)
+69. **HB0424_3(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297980)
+70. **HB0424_3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=297739)
+71. **HB0424_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315073)
+72. **HB0424_X(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317940)
+73. **HB0424_X(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317941)
+74. **HB0424_X(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317942)
+75. **HB0424_X(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=320902)
+76. **HB0424_X(14).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=323258)
+77. **HB0424_X(15).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=323259)
+78. **HB0424_X(16).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=323260)
+79. **HB0424_X(17).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325064)
+80. **HB0424_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317235)
+81. **HB0424_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317856)
+82. **HB0424_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317871)
+83. **HB0424_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317872)
+84. **HB0424_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317875)
+85. **HB0424_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317876)
+86. **HB0424_X(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317936)
+87. **HB0424_X(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317937)
+88. **HB0424_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315071)
+89. **LC3009.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=278149)
+
+## Votes
+
+- Do Pass As Amended — **88–11** (pass) · lower
+- AMD-HB0424.002.007 Zolnikov DO PASS — **99–0** (pass) · lower
+- Do Concur — **45–5** (pass) · upper
+- AMD-HB0424.002.006 Fitzpatrick J DO PASS — **98–0** (pass) · lower
+- be_concurred_in — **7–1** (pass) · upper
+- do_pass_as_amended — **19–2** (pass) · lower
+- Do Pass — **84–15** (pass) · lower
+- Do Concur — **44–6** (pass) · upper
+
+## Sponsors
+
+- Katie Zolnikov — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2024-12-13T14:39:18+00:00** (LC) Drafter Assigned
+- **2024-12-28T13:59:48+00:00** (LC) Draft On Hold
+- **2025-01-30T19:56:58+00:00** (LC) Draft Taken Off Hold
+- **2025-02-01T17:56:51+00:00** (LC) Draft in Legal Review
+- **2025-02-02T20:03:45+00:00** (LC) Draft in Edit
+- **2025-02-03T15:50:44+00:00** (LC) Draft in Input/Proofing
+- **2025-02-03T18:34:49+00:00** (LC) Draft in Final Drafter Review
+- **2025-02-04T19:13:17+00:00** (LC) Draft in Assembly
+- **2025-02-05T14:16:44+00:00** (LC) Draft Ready for Delivery
+- **2025-02-07T16:04:36+00:00** (H) Introduced
+- **2025-02-07T16:08:53+00:00** (H) Fiscal Note Requested
+- **2025-02-07T18:48:11+00:00** (H) Referred to Committee - (H) Taxation `referral-committee`
+- **2025-02-07T20:05:13+00:00** (H) First Reading `reading-1`
+- **2025-02-10T15:14:45+00:00** (H) Hearing - (H) Taxation
+- **2025-02-14T20:32:23+00:00** (H) Fiscal Note Received `receipt`
+- **2025-02-14T22:07:00+00:00** (H) Committee Report--Bill Passed as Amended - (H) Taxation `committee-passage`
+- **2025-02-17T21:55:31+00:00** (H) Fiscal Note Signed
+- **2025-02-18T15:09:31+00:00** (H) Fiscal Note Printed
+- **2025-02-19T18:18:11+00:00** (H) Committee Executive Action--Bill Passed as Amended - (H) Taxation `committee-passage`
+- **2025-02-24T15:02:07+00:00** (H) Revised Fiscal Note Requested
+- **2025-02-27T19:01:12+00:00** (H) Revised Fiscal Note Received `receipt`
+- **2025-03-01T02:35:55+00:00** (H) Fiscal Note Unsigned
+- **2025-03-03T14:40:00+00:00** (H) Revised Fiscal Note Printed
+- **2025-03-19T19:24:00+00:00** (H) 2nd Reading Pass Consideration `reading-2`
+- **2025-03-24T19:30:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
+- **2025-03-24T20:37:00+00:00** (H) 2nd Reading Motion to Amend Carried `reading-2`
+- **2025-03-24T20:42:00+00:00** (H) 2nd Reading Motion to Amend Carried `reading-2`
+- **2025-03-24T20:44:00+00:00** (H) 2nd Reading Passed as Amended `reading-2, reading-2`
+- **2025-03-25T13:19:59+00:00** (H) Revised Fiscal Note Requested
+- **2025-03-26T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
+- **2025-03-26T19:36:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
+- **2025-03-26T21:10:35+00:00** (H) Transmitted to Senate
+- **2025-03-27T14:53:12+00:00** (S) Referred to Committee - (S) Taxation `referral-committee`
+- **2025-03-27T20:59:18+00:00** (H) Revised Fiscal Note Received `receipt`
+- **2025-03-31T13:51:58+00:00** (S) Hearing - (S) Taxation
+- **2025-03-31T17:15:57+00:00** (H) Revised Fiscal Note Signed
+- **2025-04-08T15:48:56+00:00** (S) Committee Executive Action--Bill Concurred - (S) Taxation
+- **2025-04-08T19:19:00+00:00** (S) Committee Report--Bill Concurred - (S) Taxation
+- **2025-04-18T15:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
+- **2025-04-18T18:26:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
+- **2025-04-22T18:30:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
+- **2025-04-22T20:26:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
+- **2025-04-22T20:26:12+00:00** (H) Sent to Enrolling
+- **2025-04-25T19:02:32+00:00** (LC) Draft Delivered to Requester
+- **2025-04-25T19:02:54+00:00** (H) Returned from Enrolling
+- **2025-05-06T19:25:34+00:00** (H) Signed by Speaker `passage`
+- **2025-05-07T18:00:11+00:00** (S) Signed by President `passage`
+- **2025-05-07T19:57:30+00:00** (H) Transmitted to Governor `executive-receipt`
+- **2025-05-13T18:36:00+00:00** (H) Signed by Governor `executive-signature`
+- **2025-05-19T21:49:53+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/56803e66-6394-42a0-8289-ec1bb1cbb24a`. Confidence: reported (aggregated from official Montana legislature records).
+