---
type: "Bill"
title: "Traffic control: speed restrictions; use of automated traffic enforcement devices in work zones to enforce speed limit reductions; allow. Amends secs. 79d, 907 & 909 of 1949 PA 300 (MCL 257.79d et seq.) & adds secs. 2c, 627c & 907a. TIE BAR WITH: HB 4133'23"
description: "Traffic control: speed restrictions; use of automated traffic enforcement devices in work zones to enforce speed limit reductions; allow. Amends secs. 79d, 907 & 909 of 1949 PA 300 (MCL 257.79d et seq.) & adds secs. 2c, 627c & 907a. TIE BAR WITH: HB 4133'23"
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2023-2024"
identifier: "HB 4132"
citation: "Michigan HB 4132 (2023-2024)"
classification: ["bill"]
subjects: ["Construction: safety", "Traffic control: speed restrictions", "Traffic control: traffic regulation"]
status: "enacted"
primary_sponsors: ["Will Snyder"]
version_count: 6
action_count: 38
vote_count: 3
first_action: "2023-02-22"
last_action: "2024-12-10"
source: "openstates"
source_identifier: "ocd-bill/fbd3f806-c0fc-4a2e-98e2-e5c575670464"
source_url: "https://legislature.mi.gov/Bills/Bill?ObjectName=2023-HB-4132"
source_hash: "b5a9ac22bd8a44d5fc3484aafa4fe5122b1b61e7c8dfdfa9271815930e86aa26"
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 4132 (2023-2024) — Traffic control: speed restrictions; use of automated traffic enforcement devices in work zones to enforce speed limit reductions; allow. Amends secs. 79d, 907 & 909 of 1949 PA 300 (MCL 257.79d et seq.) & adds secs. 2c, 627c & 907a. TIE BAR WITH: HB 4133'23

## 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-4132.pdf)
2. **As Passed by the Senate** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billengrossed/House/pdf/2023-HEBS-4132.pdf)
3. **House Concurred Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billconcurred/House/pdf/2023-HCB-4132.pdf)
4. **House Introduced Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billintroduced/House/pdf/2023-HIB-4132.pdf)
5. **Public Act** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/publicact/pdf/2024-PA-0164.pdf)
6. **Substitute (S-5)** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-HCVBS-4132-0Q2333.pdf)

## Votes

- roll call Roll Call # 351 Yeas 57 Nays 52 Excused 0 Not Voting 1 — **57–49** (pass) · lower
- passed; given immediate effect Roll Call # 218 Yeas 67 Nays 42 Excused 0 Not Voting 1 — **67–42** (pass) · lower
- PASSED ROLL CALL # 412 YEAS 21 NAYS 14 EXCUSED 3 NOT VOTING 0 — **21–14** (pass) · upper

## Sponsors

- Will Snyder — primary (person)
- Mike Mueller — cosponsor (person)

## Timeline

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

- **2023-02-22** introduced by Representative Will Snyder `introduction`
- **2023-02-22** read a first time `reading-1`
- **2023-02-22** referred to Committee on Transportation, Mobility and Infrastructure `referral-committee`
- **2023-02-28** bill electronically reproduced 02/22/2023
- **2023-02-28** bill electronically reproduced 02/22/2023
- **2023-02-28** per Rule 41 referred to Committee on Regulatory Reform
- **2023-04-11** reported with recommendation with substitute (H-1) `committee-passage`
- **2023-04-11** referred to second reading
- **2023-06-21** read a second time `reading-2`
- **2023-06-21** substitute (H-1) adopted
- **2023-06-21** substitute (H-4) adopted
- **2023-06-21** placed on third reading
- **2023-06-22** read a third time `reading-3`
- **2023-06-22** amended
- **2023-06-22** passed; given immediate effect Roll Call # 218 Yeas 67 Nays 42 Excused 0 Not Voting 1 `passage`
- **2023-06-22** title amended
- **2023-06-22** transmitted
- **2023-06-27** PASSED BY HOUSE WITH IMMEDIATE EFFECT `passage`
- **2023-06-27** REFERRED TO COMMITTEE ON TRANSPORTATION AND INFRASTRUCTURE `referral-committee`
- **2024-03-20** REPORTED FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2024-03-20** REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-1) `referral-committee`
- **2024-05-22** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITH SUBSTITUTE (S-2) `committee-passage`
- **2024-05-22** SUBSTITUTE (S-2) CONCURRED IN
- **2024-05-22** PLACED ON ORDER OF THIRD READING WITH SUBSTITUTE (S-2)
- **2024-11-07** SUBSTITUTE (S-5) ADOPTED
- **2024-11-07** PASSED ROLL CALL # 412 YEAS 21 NAYS 14 EXCUSED 3 NOT VOTING 0 `passage`
- **2024-11-07** TITLE AMENDED
- **2024-11-07** RETURNED TO HOUSE
- **2024-11-12** returned from Senate with substitute (S-5) with title amendment
- **2024-11-12** laid over one day under the rules
- **2024-11-13** Senate substitute (S-5) concurred in
- **2024-11-13** roll call Roll Call # 351 Yeas 57 Nays 52 Excused 0 Not Voting 1
- **2024-11-13** title amendment agreed to
- **2024-11-13** bill ordered enrolled
- **2024-12-10** presented to the Governor 12/06/2024 03:02 PM `executive-receipt`
- **2024-12-10** approved by the Governor 12/10/2024 10:36 AM `executive-signature`
- **2024-12-10** filed with Secretary of State 12/10/2024 11:21 AM
- **2024-12-10** assigned PA 164'24

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/fbd3f806-c0fc-4a2e-98e2-e5c575670464`. Confidence: reported (aggregated from official Michigan legislature records).