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-623.md

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+---
+type: "Bill"
+title: "Revise laws relating to nuclear energy"
+description: "Revise laws relating to nuclear energy"
+jurisdiction: "us/states/mt"
+legislature: "Montana Legislature"
+session: "2025"
+identifier: "HB 623"
+citation: "Montana HB 623 (2025)"
+classification: ["bill"]
+subjects: ["Energy", "Utilities"]
+status: "enacted"
+primary_sponsors: ["Gary Parry"]
+version_count: 65
+action_count: 46
+vote_count: 10
+first_action: "2024-11-16T20:26:21+00:00"
+last_action: "2025-05-19T17:46:01+00:00"
+source: "openstates"
+source_identifier: "ocd-bill/8d2f2a3c-4721-4eb4-a7d1-94fb598b0e54"
+source_url: "https://bills.legmt.gov/#/laws/bill/2/LC1495?open_tab=sum"
+source_hash: "753e609d28312cb59d082fbb5f501a31aab1a1555e0096874b8f21d2078091dc"
+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 623 (2025) — Revise laws relating to nuclear energy
+
+## Version chain
+
+The bill's text revisions, in order — the diff chain from filing to enrollment.
+
+1. **HB0623.001.001_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=290378)
+2. **HB0623.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289941)
+3. **HB0623.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=291854)
+4. **HB0623.002.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292296)
+5. **HB0623.003.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=299443)
+6. **HB0623.004.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305146)
+7. **HB0623_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285590)
+8. **HB0623_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288655)
+9. **HB0623_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288656)
+10. **HB0623_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=290942)
+11. **HB0623_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=290943)
+12. **HB0623_1(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=290944)
+13. **HB0623_1(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=290946)
+14. **HB0623_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285187)
+15. **HB0623_2(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=290948)
+16. **HB0623_2(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292791)
+17. **HB0623_2(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=290949)
+18. **HB0623_2(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=290950)
+19. **HB0623_2(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=291009)
+20. **HB0623_2(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=291012)
+21. **HB0623_2(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=291057)
+22. **HB0623_2(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292788)
+23. **HB0623_2(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292789)
+24. **HB0623_2(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292790)
+25. **HB0623_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=290947)
+26. **HB0623_3(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292794)
+27. **HB0623_3(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303206)
+28. **HB0623_3(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303207)
+29. **HB0623_3(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303208)
+30. **HB0623_3(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303209)
+31. **HB0623_3(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292801)
+32. **HB0623_3(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292823)
+33. **HB0623_3(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292826)
+34. **HB0623_3(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292827)
+35. **HB0623_3(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292836)
+36. **HB0623_3(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=293860)
+37. **HB0623_3(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=294047)
+38. **HB0623_3(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=302527)
+39. **HB0623_3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=292792)
+40. **HB0623_4(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303211)
+41. **HB0623_4(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314067)
+42. **HB0623_4(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303212)
+43. **HB0623_4(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303221)
+44. **HB0623_4(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303228)
+45. **HB0623_4(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303230)
+46. **HB0623_4(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303231)
+47. **HB0623_4(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303241)
+48. **HB0623_4(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=306057)
+49. **HB0623_4(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314066)
+50. **HB0623_4.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303210)
+51. **HB0623_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314069)
+52. **HB0623_X(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325112)
+53. **HB0623_X(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325113)
+54. **HB0623_X(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=326217)
+55. **HB0623_X(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=327534)
+56. **HB0623_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314960)
+57. **HB0623_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314961)
+58. **HB0623_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=316322)
+59. **HB0623_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=316323)
+60. **HB0623_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317338)
+61. **HB0623_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=320807)
+62. **HB0623_X(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=324302)
+63. **HB0623_X(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325111)
+64. **HB0623_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314068)
+65. **LC1495.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284173)
+
+## Votes
+
+- Do Pass — **42–8** (pass) · upper
+- Do Concur — **58–42** (pass) · lower
+- be_concurred_in_as_amended — **10–3** (pass) · upper
+- HB0623.002.002 - Sooktis DO PASS — **52–47** (pass) · lower
+- Do Concur — **64–35** (pass) · lower
+- do_pass_as_amended — **12–2** (pass) · lower
+- AMD-HB0623.004.002 Morigeau S D/PASS — **21–29** (fail) · upper
+- Do Pass As Amended — **85–14** (pass) · lower
+- Do Concur — **40–9** (pass) · upper
+- Do Pass — **86–13** (pass) · lower
+
+## Sponsors
+
+- Gary Parry — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2024-11-16T20:26:21+00:00** (LC) Drafter Assigned
+- **2025-02-14T21:07:44+00:00** (LC) Draft in Legal Review
+- **2025-02-15T19:33:00+00:00** (LC) Draft in Edit
+- **2025-02-19T16:17:05+00:00** (LC) Draft in Input/Proofing
+- **2025-02-19T17:54:45+00:00** (LC) Draft in Final Drafter Review
+- **2025-02-19T18:23:42+00:00** (LC) Draft in Assembly
+- **2025-02-19T20:38:56+00:00** (LC) Draft Ready for Delivery
+- **2025-02-19T23:55:44+00:00** (LC) Draft Delivered to Requester
+- **2025-02-20T22:06:13+00:00** (H) Introduced
+- **2025-02-21T18:35:23+00:00** (H) Referred to Committee - (H) Energy, Technology and Federal Relations `referral-committee`
+- **2025-02-21T19:54:07+00:00** (H) First Reading `reading-1`
+- **2025-02-24T14:57:04+00:00** (H) Hearing - (H) Energy, Technology and Federal Relations
+- **2025-02-24T16:12:00+00:00** (H) Hearing Canceled - (H) Energy, Technology and Federal Relations
+- **2025-02-25T16:35:06+00:00** (H) Hearing - (H) Energy, Technology and Federal Relations
+- **2025-03-01T01:49:15+00:00** (H) Committee Executive Action--Bill Passed as Amended - (H) Energy, Technology and Federal Relations `committee-passage`
+- **2025-03-01T20:53:00+00:00** (H) Committee Report--Bill Passed as Amended - (H) Energy, Technology and Federal Relations `committee-passage`
+- **2025-03-03T15:16:58+00:00** (H) Fiscal Note Requested
+- **2025-03-05T18:30:00+00:00** (H) 2nd Reading Motion to Amend Carried `reading-2`
+- **2025-03-05T18:31:00+00:00** (H) 2nd Reading Passed as Amended `reading-2, reading-2`
+- **2025-03-06T19:47:25+00:00** (H) Fiscal Note Received `receipt`
+- **2025-03-06T20:42:45+00:00** (H) Fiscal Note Signed
+- **2025-03-07T16:10:00+00:00** (H) Fiscal Note Printed
+- **2025-03-07T16:36:00+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`
+- **2025-03-14T23:38:00+00:00** (S) Referred to Committee - (S) Energy, Technology & Federal Relations `referral-committee`
+- **2025-03-17T17:49:46+00:00** (S) Hearing - (S) Energy, Technology & Federal Relations
+- **2025-04-01T23:56:02+00:00** (S) Committee Executive Action--Bill Concurred as Amended - (S) Energy, Technology & Federal Relations
+- **2025-04-02T19:36:00+00:00** (S) Committee Report--Bill Concurred as Amended - (S) Energy, Technology & Federal Relations
+- **2025-04-05T14:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
+- **2025-04-05T16:16:00+00:00** (S) 2nd Reading Motion to Amend Failed `amendment-failure, failure, reading-2`
+- **2025-04-05T16:18:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
+- **2025-04-07T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
+- **2025-04-07T21:49:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
+- **2025-04-07T23:51:24+00:00** (S) Returned to House with Amendments
+- **2025-04-16T19:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
+- **2025-04-16T20:35:00+00:00** (H) 2nd Reading Senate Amendments Concurred `amendment-amendment, amendment-passage, reading-2, reading-2`
+- **2025-04-17T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
+- **2025-04-17T22:06:00+00:00** (H) 3rd Reading Passed as Amended by Senate `passage, passage, reading-3, reading-3`
+- **2025-04-18T20:06:57+00:00** (H) Sent to Enrolling
+- **2025-04-23T17:24:24+00:00** (H) Returned from Enrolling
+- **2025-05-02T17:00:20+00:00** (H) Signed by Speaker `passage`
+- **2025-05-06T20:00:43+00:00** (S) Signed by President `passage`
+- **2025-05-07T15:03:52+00:00** (H) Transmitted to Governor `executive-receipt`
+- **2025-05-13T19:06:00+00:00** (H) Signed by Governor `executive-signature`
+- **2025-05-19T17:46:01+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/8d2f2a3c-4721-4eb4-a7d1-94fb598b0e54`. Confidence: reported (aggregated from official Montana legislature records).
+