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

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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---
type: "Bill"
title: "Revise property tax rates for certain property"
description: "Revise property tax rates for certain property"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2025"
identifier: "HB 231"
citation: "Montana HB 231 (2025)"
classification: ["bill"]
subjects: ["Revenue", "Local", "Revenue", "State", "Rule Making", "Taxation", "Taxation--Property"]
status: "enacted"
primary_sponsors: ["Llew Jones"]
version_count: 182
action_count: 82
vote_count: 28
first_action: "2024-09-06T13:21:20+00:00"
last_action: "2025-05-19T21:38:12+00:00"
source: "openstates"
source_identifier: "ocd-bill/f96751f0-f2c6-4205-920d-c7dcd86aeace"
source_url: "https://bills.legmt.gov/#/laws/bill/2/LC0173?open_tab=sum"
source_hash: "97c28ad14de79ff8797fc04d86723f364b0c29956416ae4737ca42bd9ae5c33f"
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 231 (2025) — Revise property tax rates for certain property
## Version chain
The bill's text revisions, in order — the diff chain from filing to enrollment.
1. **HB0231.001.001_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=278334)
2. **HB0231.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=274879)
3. **HB0231.001.002_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=278335)
4. **HB0231.001.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=274880)
5. **HB0231.001.003_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277573)
6. **HB0231.002.002_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=279716)
7. **HB0231.002.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=279547)
8. **HB0231.002.003_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=279717)
9. **HB0231.002.003_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=279548)
10. **HB0231.002.004_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285450)
11. **HB0231.002.004_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284232)
12. **HB0231.002.005_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285451)
13. **HB0231.002.005_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=284277)
14. **HB0231.002.006_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285066)
15. **HB0231.002.006_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285050)
16. **HB0231.002.007_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285327)
17. **HB0231.003.001_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288620)
18. **HB0231.003.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288168)
19. **HB0231.003.001_Amendments-in-Context_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288171)
20. **HB0231.003.002_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288172)
21. **HB0231.003.002_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288622)
22. **HB0231.003.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288170)
23. **HB0231.003.003_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288621)
24. **HB0231.003.003_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288169)
25. **HB0231.003.003_Amendments-in-Context_final-not condensed(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288174)
26. **HB0231.003.003_Amendments-in-Context_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=288173)
27. **HB0231.003.005_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309463)
28. **HB0231.003.006_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=294674)
29. **HB0231.003.006_Amendments-in-Context_final-full(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=294676)
30. **HB0231.003.006_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=294673)
31. **HB0231.003.012_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309458)
32. **HB0231.003.012_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309457)
33. **HB0231.003.015_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309462)
34. **HB0231.003.015_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309461)
35. **HB0231.003.017_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309460)
36. **HB0231.003.017_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309459)
37. **HB0231.003.018_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309688)
38. **HB0231.003.018_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309673)
39. **HB0231.003.019_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310269)
40. **HB0231.003.019_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310266)
41. **HB0231.003.020_Amendments-in-Context_final-condensed(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310385)
42. **HB0231.003.020_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310267)
43. **HB0231.003.020_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310384)
44. **HB0231.003.021_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311292)
45. **HB0231.003.021_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310209)
46. **HB0231.003.022_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311969)
47. **HB0231.003.022_combo_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311970)
48. **HB0231.003.023_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314434)
49. **HB0231.003.023_Amendments-in-Context_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314433)
50. **HB0231.004.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312791)
51. **HB0231.004.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312790)
52. **HB0231.004.002_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312917)
53. **HB0231.004.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312916)
54. **HB0231.004.003_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313132)
55. **HB0231.004.003_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313131)
56. **HB0231.004.004_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313966)
57. **HB0231.004.004_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=313963)
58. **HB0231.004.006_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314219)
59. **HB0231.004.006_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314203)
60. **HB0231.004.007_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314432)
61. **HB0231.004.007_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314431)
62. **HB0231.004.008_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314559)
63. **HB0231.004.008_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314558)
64. **HB0231.004.009_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314787)
65. **HB0231.004.009_combo_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314790)
66. **HB0231.005.002_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318577)
67. **HB0231.005.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318568)
68. **HB0231.005.003_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318578)
69. **HB0231.005.003_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318570)
70. **HB0231.005.004_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318579)
71. **HB0231.005.004_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318569)
72. **HB0231.005.005_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318572)
73. **HB0231.005.005_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318571)
74. **HB0231.005.006_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318741)
75. **HB0231.005.006_combo_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318742)
76. **HB0231_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=272165)
77. **HB0231_1(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=273154)
78. **HB0231_1(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=274181)
79. **HB0231_1(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=275528)
80. **HB0231_1(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=276569)
81. **HB0231_1(14).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277790)
82. **HB0231_1(15).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277791)
83. **HB0231_1(16).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277793)
84. **HB0231_1(17).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277794)
85. **HB0231_1(18).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314796)
86. **HB0231_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=272166)
87. **HB0231_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=272167)
88. **HB0231_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=272275)
89. **HB0231_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=272276)
90. **HB0231_1(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=272277)
91. **HB0231_1(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=272278)
92. **HB0231_1(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=272281)
93. **HB0231_1(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=272300)
94. **HB0231_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=271990)
95. **HB0231_2(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277797)
96. **HB0231_2(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285827)
97. **HB0231_2(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285828)
98. **HB0231_2(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314795)
99. **HB0231_2(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277798)
100. **HB0231_2(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277867)
101. **HB0231_2(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277868)
102. **HB0231_2(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277869)
103. **HB0231_2(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277885)
104. **HB0231_2(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285823)
105. **HB0231_2(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285825)
106. **HB0231_2(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285826)
107. **HB0231_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=277795)
108. **HB0231_3(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285831)
109. **HB0231_3(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312155)
110. **HB0231_3(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314794)
111. **HB0231_3(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285836)
112. **HB0231_3(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285837)
113. **HB0231_3(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285848)
114. **HB0231_3(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285849)
115. **HB0231_3(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285852)
116. **HB0231_3(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=289394)
117. **HB0231_3(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311843)
118. **HB0231_3(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312154)
119. **HB0231_3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=285830)
120. **HB0231_4(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312256)
121. **HB0231_4(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314800)
122. **HB0231_4(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314801)
123. **HB0231_4(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314642)
124. **HB0231_4(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314643)
125. **HB0231_4(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314644)
126. **HB0231_4(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314645)
127. **HB0231_4(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314793)
128. **HB0231_4(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314797)
129. **HB0231_4(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314798)
130. **HB0231_4(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314799)
131. **HB0231_4.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312179)
132. **HB0231_5(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314647)
133. **HB0231_5(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314891)
134. **HB0231_5(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314892)
135. **HB0231_5(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314895)
136. **HB0231_5(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314896)
137. **HB0231_5(14).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314897)
138. **HB0231_5(15).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314902)
139. **HB0231_5(16).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317965)
140. **HB0231_5(17).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=320079)
141. **HB0231_5(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314648)
142. **HB0231_5(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314698)
143. **HB0231_5(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314802)
144. **HB0231_5(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314805)
145. **HB0231_5(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314808)
146. **HB0231_5(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314809)
147. **HB0231_5(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314853)
148. **HB0231_5(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=314881)
149. **HB0231_5.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317859)
150. **HB0231_6(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319709)
151. **HB0231_6(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319710)
152. **HB0231_6(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319711)
153. **HB0231_6(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319712)
154. **HB0231_6(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319716)
155. **HB0231_6.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319708)
156. **HB0231_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319728)
157. **HB0231_X(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319988)
158. **HB0231_X(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319989)
159. **HB0231_X(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319990)
160. **HB0231_X(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=320114)
161. **HB0231_X(14).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321107)
162. **HB0231_X(15).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321333)
163. **HB0231_X(16).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=323246)
164. **HB0231_X(17).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=323247)
165. **HB0231_X(18).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=323248)
166. **HB0231_X(19).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325060)
167. **HB0231_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319729)
168. **HB0231_X(20).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325636)
169. **HB0231_X(21).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=327261)
170. **HB0231_X(22).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=328120)
171. **HB0231_X(23).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=328123)
172. **HB0231_X(24).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=328124)
173. **HB0231_X(25).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=328125)
174. **HB0231_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319981)
175. **HB0231_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319982)
176. **HB0231_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319983)
177. **HB0231_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319984)
178. **HB0231_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319985)
179. **HB0231_X(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319986)
180. **HB0231_X(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319987)
181. **HB0231_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319718)
182. **LC0173.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=270277)
## Votes
- AMD-HB0231.004.004 Fern D/PASS — **27–22** (pass) · upper
- Do Pass — **72–27** (pass) · lower
- Do Adopt — **28–22** (pass) · upper
- do_pass_as_amended — **17–4** (pass) · lower
- Do Concur As Amended — **26–24** (pass) · upper
- AMD-HB0231.004.007 Dunwell D/PASS — **24–26** (fail) · upper
- AMD-HB0231.003.001 Falk DO PASS — **35–65** (fail) · lower
- Do Pass — **68–30** (pass) · lower
- to_take_from_the_table — **4–2** (pass) · upper
- AMD- HB0231.004.008Dunwell D/PASS — **24–26** (fail) · upper
- Do Not Concur — **71–29** (pass) · lower
- AMD-HB0231.003.002 Falk DO PASS — **30–70** (fail) · lower
- Do Concur — **25–25** (fail) · upper
- to_table — **8–0** (pass) · upper
- Do Adopt — **69–31** (pass) · lower
- be_concurred_in_as_amended — **6–2** (pass) · upper
- AMD-HB0231.004.006 Kerr-Carpenter D/PASS — **44–6** (pass) · upper
- Do Concur — **25–25** (fail) · upper
- Indefinitely Postpone -McGillvray — **26–21** (pass) · upper
- ReconsAction -Flowers — **28–22** (pass) · upper
- Do Adopt — **28–22** (pass) · upper
- Do Pass — **75–25** (pass) · lower
- ReconsAction -Fern — **26–24** (pass) · upper
- AMD-HB0231.002.003 Gillette DO PASS — **16–84** (fail) · lower
- Do Adopt — **60–39** (pass) · lower
- Do Concur — **25–24** (pass) · upper
- AMD-HB0231.003.003 Falk DO PASS — **40–60** (fail) · lower
- do_pass_as_amended — **15–8** (pass) · lower
## Sponsors
- Llew Jones — primary (person)
## Timeline
The legislative action history — every referral, reading, and vote.
- **2024-09-06T13:21:20+00:00** (LC) Drafter Assigned
- **2025-01-03T22:56:53+00:00** (LC) Draft in Legal Review
- **2025-01-06T23:08:39+00:00** (LC) Draft in Edit
- **2025-01-08T18:53:28+00:00** (LC) Draft in Input/Proofing
- **2025-01-09T15:17:10+00:00** (LC) Draft in Final Drafter Review
- **2025-01-09T21:14:13+00:00** (LC) Draft in Assembly
- **2025-01-14T16:33:47+00:00** (LC) Draft Ready for Delivery
- **2025-01-15T15:18:32+00:00** (LC) Draft Delivered to Requester
- **2025-01-16T15:57:03+00:00** (H) Introduced
- **2025-01-16T16:00:52+00:00** (H) Fiscal Note Requested
- **2025-01-16T18:32:49+00:00** (H) Referred to Committee - (H) Taxation `referral-committee`
- **2025-01-16T20:07:19+00:00** (H) First Reading `reading-1`
- **2025-01-20T20:57:00+00:00** (H) Hearing - (H) Taxation
- **2025-01-28T20:38:19+00:00** (H) Fiscal Note Received `receipt`
- **2025-01-28T20:47:56+00:00** (H) Fiscal Note Signed
- **2025-01-29T15:23:02+00:00** (H) Fiscal Note Printed
- **2025-01-31T17:54:28+00:00** (H) Committee Executive Action--Bill Passed as Amended - (H) Taxation `committee-passage`
- **2025-01-31T18:22:21+00:00** (H) Committee Executive Action--Bill Passed as Amended - (H) Taxation `committee-passage`
- **2025-01-31T20:27:00+00:00** (H) Committee Report--Bill Passed as Amended - (H) Taxation `committee-passage`
- **2025-02-03T15:46:10+00:00** (H) Revised Fiscal Note Requested
- **2025-02-05T18:40:18+00:00** (H) Revised Fiscal Note Received `receipt`
- **2025-02-05T20:17:00+00:00** (H) Revised Fiscal Note Signed
- **2025-02-06T14:03:42+00:00** (H) Revised Fiscal Note Printed
- **2025-02-06T20:48:00+00:00** (H) 2nd Reading Motion to Amend Failed `amendment-failure, failure, reading-2`
- **2025-02-06T20:59:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2025-02-06T21:49:00+00:00** (H) Rereferred to Committee - (H) Appropriations `referral-committee, referral-committee`
- **2025-02-10T16:33:24+00:00** (H) Hearing - (H) Appropriations
- **2025-02-20T23:46:54+00:00** (H) Committee Executive Action--Bill Passed as Amended - (H) Appropriations `committee-passage`
- **2025-02-21T20:18:00+00:00** (H) Committee Report--Bill Passed as Amended - (H) Appropriations `committee-passage`
- **2025-02-22T17:33:41+00:00** (H) Revised Fiscal Note Requested
- **2025-02-26T20:46:00+00:00** (H) 2nd Reading Motion to Amend Failed `amendment-failure, failure, reading-2`
- **2025-02-26T20:53:00+00:00** (H) 2nd Reading Motion to Amend Failed `amendment-failure, failure, reading-2`
- **2025-02-26T20:55:00+00:00** (H) 2nd Reading Motion to Amend Failed `amendment-failure, failure, reading-2`
- **2025-02-26T21:08:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2025-02-27T21:59:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2025-02-27T22:18:23+00:00** (H) Transmitted to Senate
- **2025-02-28T19:58:02+00:00** (H) Revised Fiscal Note Received `receipt`
- **2025-02-28T20:12:03+00:00** (S) First Reading `reading-1`
- **2025-03-01T19:58:38+00:00** (H) Revised Fiscal Note Signed
- **2025-03-03T17:39:42+00:00** (H) Revised Fiscal Note Printed
- **2025-03-04T01:03:24+00:00** (S) Referred to Committee - (S) Taxation `referral-committee`
- **2025-03-12T22:15:57+00:00** (S) Hearing - (S) Taxation
- **2025-04-02T17:07:00+00:00** (S) Tabled in Committee - (S) Taxation `amendment-deferral`
- **2025-04-09T16:01:30+00:00** (S) Taken from Table in Committee - (S) Taxation
- **2025-04-16T15:28:24+00:00** (S) Committee Executive Action--Bill Concurred as Amended - (S) Taxation
- **2025-04-16T20:26:00+00:00** (S) Committee Report--Bill Concurred as Amended - (S) Taxation
- **2025-04-17T17:29:11+00:00** (H) Revised Fiscal Note Requested
- **2025-04-18T00:52:00+00:00** (S) 2nd Reading Concur Motion Failed `failure, reading-2, reading-2`
- **2025-04-18T00:53:00+00:00** (S) 2nd Reading Indefinitely Postponed `reading-2, reading-2`
- **2025-04-18T22:47:00+00:00** (S) Reconsidered Previous Action; Placed on 2nd Reading `reading-2, reading-2`
- **2025-04-22T23:19:00+00:00** (S) 2nd Reading Motion to Amend Carried `reading-2`
- **2025-04-22T23:20:00+00:00** (S) 2nd Reading Motion to Amend Carried `reading-2`
- **2025-04-22T23:21:00+00:00** (S) 2nd Reading Motion to Amend Failed `amendment-failure, failure, reading-2`
- **2025-04-22T23:35:00+00:00** (S) 2nd Reading Motion to Amend Failed `amendment-failure, failure, reading-2`
- **2025-04-23T00:23:00+00:00** (S) 2nd Reading Concurred as Amended `reading-2, reading-2`
- **2025-04-24T22:29:00+00:00** (S) 3rd Reading Failed `failure, failure, reading-3`
- **2025-04-24T22:31:01+00:00** (S) Reconsidered Previous Action; Remains in 3rd Reading Process `reading-3`
- **2025-04-25T15:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-04-25T17:21:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2025-04-25T18:59:33+00:00** (S) Returned to House with Amendments
- **2025-04-28T19:30:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2025-04-28T19:42:00+00:00** (H) 2nd Reading Senate Amendments Not Concurred `reading-2`
- **2025-04-28T20:57:46+00:00** (H) Conference Committee Appointed
- **2025-04-29T02:03:07+00:00** (H) Hearing - Conference Committee on HB 231
- **2025-04-29T14:45:38+00:00** (S) Conference Committee Appointed
- **2025-04-29T17:03:00+00:00** (S) Conference Committee Report Received `receipt`
- **2025-04-29T17:07:00+00:00** (H) Conference Committee Report Received `receipt`
- **2025-04-29T21:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2025-04-30T00:43:00+00:00** (S) 2nd Reading Conference Committee Report Adopted `reading-2, reading-2`
- **2025-04-30T15:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2025-04-30T15:52:00+00:00** (H) 2nd Reading Conference Committee Report Adopted `reading-2, reading-2`
- **2025-04-30T16:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-04-30T17:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2025-04-30T18:05:00+00:00** (H) 3rd Reading Conference Committee Report Adopted `reading-3`
- **2025-04-30T19:58:00+00:00** (S) 3rd Reading Conference Committee Report Adopted `reading-3`
- **2025-04-30T20:18:20+00:00** (H) Sent to Enrolling
- **2025-05-02T13:11:13+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`
- **2025-05-13T18:33:00+00:00** (H) Signed by Governor `executive-signature`
- **2025-05-19T21:38:12+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/f96751f0-f2c6-4205-920d-c7dcd86aeace`. Confidence: reported (aggregated from official Montana legislature records).