republic-os/legislation/us/states/mt/2025/sb-508.md

type, title, description, jurisdiction, legislature, session, identifier, citation, classification, subjects, status, primary_sponsors, version_count, action_count, vote_count, first_action, last_action, source, source_identifier, source_url, source_hash, vintage, source_snapshot, retrieved_at, confidence, tags

type	title	description	jurisdiction	legislature	session	identifier	citation	classification	subjects	status	primary_sponsors	version_count	action_count	vote_count	first_action	last_action	source	source_identifier	source_url	source_hash	vintage	source_snapshot	retrieved_at	confidence	tags
Bill	Generally revise driving under the influence laws for THC levels in drivers under 21	Generally revise driving under the influence laws for THC levels in drivers under 21	us/states/mt	Montana Legislature	2025	SB 508	Montana SB 508 (2025)	bill	Alcohol Law Enforcement Motor Vehicles	enacted	Willis Curdy	16	37	6	2024-12-14T18:09:30+00:00	2025-05-08T14:26:15+00:00	openstates	ocd-bill/56b9283d-5a8c-4744-884b-6726c048a16c	https://bills.legmt.gov/#/laws/bill/2/LC3514?open_tab=sum	ef85a5970e665020b52af61c391f7ded626e390bd0b52a6765ce039167be4248	2026-07-01	https://data.openstates.org/daily/2026-07-01/public.pgdump	2026-07-06	reported	legislation bill us-mt

Montana SB 508 (2025) — Generally revise driving under the influence laws for THC levels in drivers under 21

Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. LC3514.pdf (committee substitute) — source
2. SB0508_1(1).pdf (committee substitute) — source
3. SB0508_1(2).pdf (committee substitute) — source
4. SB0508_1(3).pdf (committee substitute) — source
5. SB0508_1(4).pdf (committee substitute) — source
6. SB0508_1(5).pdf (committee substitute) — source
7. SB0508_1.pdf (committee substitute) — source
8. SB0508_X(1).pdf (committee substitute) — source
9. SB0508_X(2).pdf (committee substitute) — source
10. SB0508_X(3).pdf (committee substitute) — source
11. SB0508_X(4).pdf (committee substitute) — source
12. SB0508_X(5).pdf (committee substitute) — source
13. SB0508_X(6).pdf (committee substitute) — source
14. SB0508_X(7).pdf (committee substitute) — source
15. SB0508_X(8).pdf (committee substitute) — source
16. SB0508_X.pdf (committee substitute) — source

Votes

• Do Pass — 42–7 (pass) · upper
• Do Concur — 61–39 (pass) · lower
• Do Concur — 62–37 (pass) · lower
• be_concurred_in — 14–6 (pass) · lower
• do_pass — 8–0 (pass) · upper
• Do Pass — 44–6 (pass) · upper

Sponsors

• Willis Curdy — primary (person)

Timeline

The legislative action history — every referral, reading, and vote.

• 2024-12-14T18:09:30+00:00 (LC) Drafter Assigned
• 2025-01-20T23:19:04+00:00 (LC) Draft On Hold
• 2025-01-21T21:14:34+00:00 (LC) Draft Taken Off Hold
• 2025-02-14T23:07:37+00:00 (LC) Draft in Legal Review
• 2025-02-15T17:47:03+00:00 (LC) Draft in Edit
• 2025-02-18T18:09:22+00:00 (LC) Draft in Input/Proofing
• 2025-02-18T21:50:25+00:00 (LC) Draft in Final Drafter Review
• 2025-02-18T23:40:07+00:00 (LC) Draft in Assembly
• 2025-02-19T00:20:58+00:00 (LC) Draft Ready for Delivery
• 2025-02-25T21:32:00+00:00 (LC) Draft Delivered to Requester
• 2025-02-25T22:48:47+00:00 (S) Introduced
• 2025-02-26T20:27:22+00:00 (S) First Reading reading-1
• 2025-02-26T20:32:00+00:00 (S) Referred to Committee - (S) Highways and Transportation referral-committee
• 2025-03-03T20:17:59+00:00 (S) Hearing - (S) Highways and Transportation
• 2025-03-03T23:12:45+00:00 (S) Committee Executive Action--Bill Passed - (S) Highways and Transportation committee-passage
• 2025-03-04T20:06:00+00:00 (S) Committee Report--Bill Passed - (S) Highways and Transportation committee-passage
• 2025-03-06T15:30:00+00:00 (S) Scheduled for 2nd Reading reading-2
• 2025-03-06T18:53:00+00:00 (S) 2nd Reading Passed reading-2, reading-2
• 2025-03-07T00:30:00+00:00 (S) Scheduled for 3rd Reading reading-3
• 2025-03-07T02:04:00+00:00 (S) 3rd Reading Passed passage, reading-3
• 2025-03-07T16:19:09+00:00 (S) Transmitted to House
• 2025-03-17T15:27:01+00:00 (H) Referred to Committee - (H) Judiciary referral-committee
• 2025-03-17T19:15:00+00:00 (H) First Reading reading-1
• 2025-04-07T20:44:10+00:00 (H) Hearing - (H) Judiciary
• 2025-04-09T19:04:35+00:00 (H) Committee Executive Action--Bill Concurred - (H) Judiciary
• 2025-04-09T22:07:00+00:00 (H) Committee Report--Bill Concurred - (H) Judiciary
• 2025-04-11T14:30:00+00:00 (H) Scheduled for 2nd Reading reading-2
• 2025-04-11T19:19:00+00:00 (H) 2nd Reading Concurred reading-2, reading-2
• 2025-04-11T21:01:00+00:00 (H) Scheduled for 3rd Reading reading-3
• 2025-04-12T00:00:00+00:00 (H) 3rd Reading Concurred passage, reading-3
• 2025-04-12T00:00:57+00:00 (S) Sent to Enrolling
• 2025-04-14T13:36:33+00:00 (S) Returned from Enrolling
• 2025-04-21T22:00:17+00:00 (S) Signed by President passage
• 2025-04-25T20:40:10+00:00 (H) Signed by Speaker passage
• 2025-04-25T21:18:10+00:00 (S) Transmitted to Governor executive-receipt
• 2025-05-05T19:18:00+00:00 (S) Signed by Governor executive-signature
• 2025-05-08T14:26:15+00:00 Chapter Number Assigned became-law

Source

OpenStates / OpenCivicData bulk snapshot 2026-07-01; origin ocd-bill/56b9283d-5a8c-4744-884b-6726c048a16c. Confidence: reported (aggregated from official Montana legislature records).