---
type: "Bill"
title: "Labor: health and safety; provisions related to civil penalties; modify with respect to repeated violations and asbestos-related violations. Amends secs. 4, 35 & 36 of 1974 PA 154 (MCL 408.1004 et seq.)."
description: "Labor: health and safety; provisions related to civil penalties; modify with respect to repeated violations and asbestos-related violations. Amends secs. 4, 35 & 36 of 1974 PA 154 (MCL 408.1004 et seq.)."
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2023-2024"
identifier: "HB 4185"
citation: "Michigan HB 4185 (2023-2024)"
classification: ["bill"]
subjects: ["Construction: asbestos", "Labor: health and safety"]
status: "enacted"
primary_sponsors: ["Denise Mentzer"]
version_count: 7
action_count: 26
vote_count: 2
first_action: "2023-03-07"
last_action: "2024-03-12"
source: "openstates"
source_identifier: "ocd-bill/5fb2009a-a81c-4af6-865b-276ed2d339a1"
source_url: "https://legislature.mi.gov/Bills/Bill?ObjectName=2023-HB-4185"
source_hash: "86631847f740b3df41f0a1d08a0bd2ab78edb0a0e0409a20661e67217eec3d1c"
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 HB 4185 (2023-2024) — Labor: health and safety; provisions related to civil penalties; modify with respect to repeated violations and asbestos-related violations. Amends secs. 4, 35 & 36 of 1974 PA 154 (MCL 408.1004 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/House/pdf/2023-HEBH-4185.pdf)
2. **As Passed by the Senate** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billengrossed/House/pdf/2023-HEBS-4185.pdf)
3. **House Concurred Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billconcurred/House/pdf/2023-HCB-4185.pdf)
4. **House Introduced Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billintroduced/House/pdf/2023-HIB-4185.pdf)
5. **Public Act** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/publicact/pdf/2024-PA-0017.pdf)
6. **Substitute (H-2)** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-HCVBS-4185-0N295.pdf)
7. **Substitute (H-2) - 2** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-HCVBS-4185-0O338.pdf)

## Votes

- PASSED ROLL CALL # 30 YEAS 20 NAYS 18 EXCUSED 0 NOT VOTING 0 — **20–18** (pass) · upper
- passed; given immediate effect Roll Call # 416 Yeas 73 Nays 37 Excused 0 Not Voting 0 — **73–37** (pass) · lower

## Sponsors

- Denise Mentzer — primary (person)
- Abraham Aiyash — cosponsor (person)
- Carrie Rheingans — cosponsor (person)
- Curtis VanderWall — cosponsor (person)
- Donavan McKinney — cosponsor (person)
- Dylan Wegela — cosponsor (person)
- Emily Dievendorf — cosponsor (person)
- Erin Byrnes — cosponsor (person)
- Jason Morgan — cosponsor (person)
- Jimmie Wilson Jr. — cosponsor (person)
- Kara Hope — cosponsor (person)
- Penelope Tsernoglou — cosponsor (person)
- Ranjeev Puri — cosponsor (person)
- Regina Weiss — cosponsor (person)
- Tullio Liberati — cosponsor (person)
- Tyrone Carter — cosponsor (person)
- Veronica Paiz — cosponsor (person)

## Timeline

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

- **2023-03-07** introduced by Representative Denise Mentzer `introduction`
- **2023-03-07** read a first time `reading-1`
- **2023-03-07** referred to Committee on Natural Resources, Environment, Tourism and Outdoor Recreation `referral-committee`
- **2023-03-08** bill electronically reproduced 03/07/2023
- **2023-05-18** reported with recommendation with substitute (H-2) `committee-passage`
- **2023-05-18** referred to second reading
- **2023-10-25** read a second time `reading-2`
- **2023-10-25** substitute (H-2) adopted
- **2023-10-25** placed on third reading
- **2023-10-31** read a third time `reading-3`
- **2023-10-31** passed; given immediate effect Roll Call # 416 Yeas 73 Nays 37 Excused 0 Not Voting 0 `passage`
- **2023-10-31** transmitted
- **2023-11-01** REFERRED TO COMMITTEE ON ENERGY AND ENVIRONMENT `referral-committee`
- **2024-02-20** REPORTED FAVORABLY WITHOUT AMENDMENT `committee-passage`
- **2024-02-20** REFERRED TO COMMITTEE OF THE WHOLE `referral-committee`
- **2024-02-22** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITHOUT AMENDMENT(S) `committee-passage`
- **2024-02-22** PLACED ON ORDER OF THIRD READING
- **2024-02-27** PASSED ROLL CALL # 30 YEAS 20 NAYS 18 EXCUSED 0 NOT VOTING 0 `passage`
- **2024-02-27** INSERTED FULL TITLE
- **2024-02-27** returned from Senate without amendment with full title
- **2024-02-27** full title agreed to
- **2024-02-27** bill ordered enrolled
- **2024-03-05** presented to the Governor 02/29/2024 02:36 PM `executive-receipt`
- **2024-03-12** approved by the Governor 03/12/2024 10:02 AM `executive-signature`
- **2024-03-12** filed with Secretary of State 03/12/2024 11:26 AM
- **2024-03-12** assigned PA 17'24

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/5fb2009a-a81c-4af6-865b-276ed2d339a1`. Confidence: reported (aggregated from official Michigan legislature records).