---
type: "Bill"
title: "Establish a chemical dependency treatment voucher program"
description: "Establish a chemical dependency treatment voucher program"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2023"
identifier: "HB 311"
citation: "Montana HB 311 (2023)"
classification: ["bill"]
subjects: ["Alcohol and Drugs", "Appropriations (see also: State Finance)", "Rule Making", "Social Services"]
status: "enacted"
primary_sponsors: ["Michael Yakawich"]
version_count: 4
action_count: 64
vote_count: 8
first_action: "2022-11-20T16:55:22+00:00"
last_action: "2023-04-20T22:10:13+00:00"
source: "openstates"
source_identifier: "ocd-bill/ad148b65-99d6-45a2-a686-472e0f870a66"
source_url: "https://bills.legmt.gov/#/bill/20231/LC1369"
source_hash: "ccdbec5320df487a223b3e2696040958ac30d9995201f48bda42d9142821f7a2"
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 311 (2023) — Establish a chemical dependency treatment voucher program

## Version chain

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

1. **HB0311.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=6594)
2. **HB0311_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=6597)
3. **HB0311_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=6599)
4. **HB0311_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=6598)

## Votes

- (S) Committee Executive Action--Bill Concurred — **18–1** (pass) · upper
- (S) 3rd Reading Concurred — **47–1** (pass) · upper
- (H) Committee Executive Action--Bill Passed — **12–11** (pass) · lower
- (H) 3rd Reading Passed — **89–9** (pass) · lower
- (H) 2nd Reading Passed — **93–7** (pass) · lower
- (S) 2nd Reading Concurred — **49–1** (pass) · upper
- (S) Committee Executive Action--Bill Concurred — **9–0** (pass) · upper
- (H) Committee Executive Action--Bill Passed as Amended — **20–1** (pass) · lower

## Sponsors

- Michael Yakawich — primary (person)

## Timeline

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

- **2023-04-20T22:10:13+00:00** Chapter Number Assigned `became-law`
- **2023-04-20T18:05:00+00:00** (H) Signed by Governor `executive-signature`
- **2023-04-13T16:45:00+00:00** (H) Transmitted to Governor `executive-receipt`
- **2023-04-12T18:00:00+00:00** (S) Signed by President `passage`
- **2023-04-07T14:39:00+00:00** (H) Signed by Speaker `passage`
- **2023-04-05T23:28:22+00:00** (C) Printed - Enrolled Version Available `enrolled`
- **2023-04-05T23:28:21+00:00** (H) Returned from Enrolling
- **2023-04-01T00:42:16+00:00** (H) Sent to Enrolling
- **2023-03-31T21:52:33+00:00** (S) Returned to House
- **2023-03-30T20:46:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2023-03-30T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2023-03-29T19:38:00+00:00** (S) Committee Report--Bill Concurred
- **2023-03-28T14:00:01+00:00** (S) Committee Executive Action--Bill Concurred
- **2023-03-28T14:00:00+00:00** (S) Hearing
- **2023-03-23T20:17:00+00:00** (S) Rereferred to Committee `referral-committee, referral-committee`
- **2023-03-23T19:32:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2023-03-23T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-03-20T19:04:00+00:00** (S) Committee Report--Bill Concurred
- **2023-03-17T20:00:01+00:00** (S) Committee Executive Action--Bill Concurred
- **2023-03-17T20:00:00+00:00** (S) Hearing
- **2023-03-13T18:23:38+00:00** (S) Referred to Committee `referral-committee`
- **2023-02-23T20:44:00+00:00** (S) First Reading `reading-1`
- **2023-02-23T16:24:00+00:00** (H) Transmitted to Senate
- **2023-02-22T21:31:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2023-02-22T20:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2023-02-21T20:33:00+00:00** (H) Committee Report--Bill Passed `committee-passage`
- **2023-02-20T22:30:00+00:00** (H) Committee Executive Action--Bill Passed `committee-passage`
- **2023-02-20T22:00:17+00:00** (H) Hearing
- **2023-02-16T21:29:00+00:00** (H) Rereferred to Committee `referral-committee, referral-committee`
- **2023-02-16T21:07:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2023-02-16T20:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2023-02-13T20:03:19+00:00** (H) Revised Fiscal Note Printed
- **2023-02-13T14:30:48+00:00** (H) Revised Fiscal Note Signed
- **2023-02-10T23:39:18+00:00** (H) Revised Fiscal Note Received `receipt`
- **2023-02-08T21:26:31+00:00** (C) Printed - New Version Available
- **2023-02-08T17:36:44+00:00** (H) Revised Fiscal Note Requested
- **2023-02-06T20:16:00+00:00** (H) Sponsor List Modified
- **2023-02-03T22:44:51+00:00** (H) Fiscal Note Printed
- **2023-02-03T20:03:08+00:00** (H) Fiscal Note Unsigned
- **2023-02-03T01:02:00+00:00** (H) Committee Report--Bill Passed as Amended `committee-passage`
- **2023-02-03T00:16:55+00:00** (H) Committee Executive Action--Bill Passed as Amended `committee-passage`
- **2023-02-02T23:16:50+00:00** (H) Fiscal Note Received `receipt`
- **2023-02-02T20:23:45+00:00** (C) Amendments Available
- **2023-01-31T22:00:16+00:00** (H) Hearing
- **2023-01-25T15:12:42+00:00** (H) Fiscal Note Requested
- **2023-01-24T20:09:01+00:00** (H) First Reading `reading-1`
- **2023-01-24T18:43:49+00:00** (H) Referred to Committee `referral-committee`
- **2023-01-23T17:41:00+00:00** (C) Introduced Bill Text Available Electronically
- **2023-01-23T16:24:49+00:00** (H) Introduced
- **2023-01-23T15:43:29+00:00** (C) Draft Delivered to Requester
- **2023-01-17T18:29:27+00:00** (C) Draft Ready for Delivery
- **2023-01-16T19:10:01+00:00** (C) Executive Director Final Review
- **2023-01-16T19:09:56+00:00** (C) Draft Ready for Delivery
- **2023-01-12T23:24:05+00:00** (C) Draft in Assembly
- **2023-01-12T22:58:38+00:00** (C) Executive Director Review
- **2023-01-12T22:14:29+00:00** (C) Bill Draft Text Available Electronically
- **2023-01-12T22:14:28+00:00** (C) Draft in Final Drafter Review
- **2023-01-12T21:03:46+00:00** (C) Draft in Input/Proofing
- **2023-01-12T19:47:56+00:00** (C) Draft to Drafter - Edit Review
- **2023-01-10T22:51:48+00:00** (C) Draft in Edit
- **2023-01-10T20:59:33+00:00** (C) Draft in Legal Review
- **2023-01-10T18:51:38+00:00** (C) Draft to Requester for Review
- **2023-01-06T19:07:03+00:00** (C) Draft to Requester for Review
- **2022-11-20T16:55:22+00:00** (C) Draft Request Received `receipt`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/ad148b65-99d6-45a2-a686-472e0f870a66`. Confidence: reported (aggregated from official Montana legislature records).