---
type: "Bill"
title: "Labor: collective bargaining; collective bargaining rights; revise to restore former provisions. Amends secs. 1, 2, 14 & 17 of 1939 PA 176 (MCL 423.1 et seq.)."
description: "Labor: collective bargaining; collective bargaining rights; revise to restore former provisions. Amends secs. 1, 2, 14 & 17 of 1939 PA 176 (MCL 423.1 et seq.)."
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2023-2024"
identifier: "SB 34"
citation: "Michigan SB 34 (2023-2024)"
classification: ["bill"]
subjects: ["Labor: collective bargaining", "Labor: fair employment practices", "Labor: organizations"]
status: "enacted"
primary_sponsors: ["Darrin Camilleri"]
version_count: 9
action_count: 30
vote_count: 3
first_action: "2023-01-19"
last_action: "2023-04-11"
source: "openstates"
source_identifier: "ocd-bill/2ecff15d-24fd-4f9c-a026-7a144e3d8f46"
source_url: "https://legislature.mi.gov/Bills/Bill?ObjectName=2023-SB-0034"
source_hash: "98e89f2a9c389d21dcb27a90748e12fc3cd9e47c80e0fc65f093b7d7cd55e46d"
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-mi"]
---

# Michigan SB 34 (2023-2024) — Labor: collective bargaining; collective bargaining rights; revise to restore former provisions. Amends secs. 1, 2, 14 & 17 of 1939 PA 176 (MCL 423.1 et seq.).

## Version chain

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

1. **As Passed by the House** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billengrossed/Senate/pdf/2023-SEBH-0034.pdf)
2. **As Passed by the Senate** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billengrossed/Senate/pdf/2023-SEBS-0034.pdf)
3. **Public Act** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/publicact/pdf/2023-PA-0008.pdf)
4. **Senate Concurred Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billconcurred/Senate/pdf/2023-SCB-0034.pdf)
5. **Senate Introduced Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billintroduced/Senate/pdf/2023-SIB-0034.pdf)
6. **Substitute (S-1)** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0034-00B74.pdf)
7. **Substitute (S-1) - 2** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0034-0B735.pdf)
8. **Substitute (S-1) - 3** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0034-00C77.pdf)
9. **Substitute (S-1) - 4** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0034-00D48.pdf)

## Votes

- PASSED ROLL CALL # 60 YEAS 20 NAYS 17 EXCUSED 1 NOT VOTING 0 — **20–17** (pass) · upper
- HOUSE AMENDMENT(S) CONCURRED IN ROLL CALL # 100 YEAS 20 NAYS 16 EXCUSED 2 NOT VOTING 0 — **20–16** (pass) · upper
- passed; given immediate effect Roll Call # 34 Yeas 56 Nays 52 Excused 0 Not Voting 2 — **56–52** (pass) · lower

## Sponsors

- Darrin Camilleri — primary (person)
- Dayna Polehanki — cosponsor (person)
- Erika Geiss — cosponsor (person)
- Jeff Irwin — cosponsor (person)
- Jeremy Moss — cosponsor (person)
- John Cherry — cosponsor (person)
- Kevin Hertel — cosponsor (person)
- Kristen McDonald Rivet — cosponsor (person)
- Mallory McMorrow — cosponsor (person)
- Mary Cavanagh — cosponsor (person)
- Paul Wojno — cosponsor (person)
- Rosemary Bayer — cosponsor (person)
- Sam Singh — cosponsor (person)
- Sarah Anthony — cosponsor (person)
- Sean McCann — cosponsor (person)
- Stephanie Chang — cosponsor (person)
- Sue Shink — cosponsor (person)
- Sylvia A. Santana — cosponsor (person)
- Veronica Klinefelt — cosponsor (person)
- Winnie Brinks — cosponsor (person)

## Timeline

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

- **2023-01-19** INTRODUCED BY SENATOR DARRIN CAMILLERI `introduction`
- **2023-01-19** REFERRED TO COMMITTEE ON LABOR `referral-committee`
- **2023-03-14** REPORTED FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2023-03-14** REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-1) `referral-committee`
- **2023-03-14** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2023-03-14** SUBSTITUTE (S-1) CONCURRED IN
- **2023-03-14** PLACED ON ORDER OF THIRD READING WITH SUBSTITUTE (S-1)
- **2023-03-14** RULES SUSPENDED
- **2023-03-14** PLACED ON IMMEDIATE PASSAGE
- **2023-03-14** AMENDMENT(S) DEFEATED `amendment-failure`
- **2023-03-14** PASSED ROLL CALL # 60 YEAS 20 NAYS 17 EXCUSED 1 NOT VOTING 0 `passage`
- **2023-03-15** received on 03/15/2023 `introduction`
- **2023-03-15** read a first time `reading-1`
- **2023-03-15** referred to Committee on Labor `referral-committee`
- **2023-03-21** rule suspended
- **2023-03-21** motion to discharge committee approved
- **2023-03-21** placed on second reading
- **2023-03-21** read a second time `reading-2`
- **2023-03-21** amended
- **2023-03-21** placed on third reading
- **2023-03-21** placed on immediate passage
- **2023-03-21** read a third time `reading-3`
- **2023-03-21** passed; given immediate effect Roll Call # 34 Yeas 56 Nays 52 Excused 0 Not Voting 2 `passage`
- **2023-03-21** returned to Senate
- **2023-03-21** HOUSE AMENDMENT(S) CONCURRED IN ROLL CALL # 100 YEAS 20 NAYS 16 EXCUSED 2 NOT VOTING 0
- **2023-03-21** ORDERED ENROLLED
- **2023-03-23** PRESENTED TO GOVERNOR 03/23/2023 11:32 AM `executive-receipt`
- **2023-04-11** APPROVED BY GOVERNOR 03/24/2023 09:32 AM `executive-signature`
- **2023-04-11** FILED WITH SECRETARY OF STATE 03/24/2023 01:02 PM
- **2023-04-11** ASSIGNED PA 0008'23

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/2ecff15d-24fd-4f9c-a026-7a144e3d8f46`. Confidence: reported (aggregated from official Michigan legislature records).