---
type: "Bill"
title: "Health: medical examiners; requirements for an investigation of the cause and manner of death; modify. Amends secs. 2 & 3 of 1953 PA 181 (MCL 52.202 & 52.203). TIE BAR WITH: HB 4077'25"
description: "Health: medical examiners; requirements for an investigation of the cause and manner of death; modify. Amends secs. 2 & 3 of 1953 PA 181 (MCL 52.202 & 52.203). TIE BAR WITH: HB 4077'25"
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2025-2026"
identifier: "HB 4078"
citation: "Michigan HB 4078 (2025-2026)"
classification: ["bill"]
subjects: ["Counties: boards and commissions", "Health: medical examiners", "Records: vital records"]
status: "enacted"
primary_sponsors: ["Mike Mueller"]
version_count: 5
action_count: 26
vote_count: 2
first_action: "2025-02-12"
last_action: "2026-03-18"
source: "openstates"
source_identifier: "ocd-bill/2f1567a5-0ab3-426a-9662-9a5ec9840ff0"
source_url: "https://legislature.mi.gov/Bills/Bill?ObjectName=2025-HB-4078"
source_hash: "85d164c2598147365e86e15b10e4035f49a748e23ec9b18402a4123fceedbc98"
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 4078 (2025-2026) — Health: medical examiners; requirements for an investigation of the cause and manner of death; modify. Amends secs. 2 & 3 of 1953 PA 181 (MCL 52.202 & 52.203). TIE BAR WITH: HB 4077'25

## 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/2025-2026/billengrossed/House/pdf/2025-HEBH-4078.pdf)
2. **As Passed by the Senate** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/billengrossed/House/pdf/2025-HEBS-4078.pdf)
3. **House Concurred Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/billconcurred/House/pdf/2025-HCB-4078.pdf)
4. **House Introduced Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/billintroduced/House/pdf/2025-HIB-4078.pdf)
5. **Public Act** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/publicact/pdf/2026-PA-0004.pdf)

## Votes

- passed; given immediate effect Roll Call #58 Yeas 106 Nays 2 Excused 0 Not Voting 2 — **106–2** (pass) · lower
- PASSED; GIVEN IMMEDIATE EFFECT ROLL CALL # 20 YEAS 36 NAYS 0 EXCUSED 1 NOT VOTING 0 — **36–0** (pass) · upper

## Sponsors

- Mike Mueller — primary (person)
- Carol Glanville — cosponsor (person)
- Carrie Rheingans — cosponsor (person)
- Curtis VanderWall — cosponsor (person)
- Cynthia Neeley — cosponsor (person)
- Donavan McKinney — cosponsor (person)
- Douglas Wozniak — cosponsor (person)
- Erin Byrnes — cosponsor (person)
- Jason Hoskins — cosponsor (person)
- Jason Morgan — cosponsor (person)
- Jennifer Conlin — cosponsor (person)
- Joey Andrews — cosponsor (person)
- Kathy Schmaltz — cosponsor (person)
- Matt Longjohn — cosponsor (person)
- Mike McFall — cosponsor (person)
- Morgan Foreman — cosponsor (person)
- Pat Outman — cosponsor (person)
- Penelope Tsernoglou — cosponsor (person)
- Reggie Miller — cosponsor (person)
- Samantha Steckloff — cosponsor (person)

## Timeline

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

- **2025-02-12** introduced by Representative Rep. Mike Mueller `introduction`
- **2025-02-12** read a first time `reading-1`
- **2025-02-12** referred to Committee on Health Policy `referral-committee`
- **2025-02-13** bill electronically reproduced 02/12/2025
- **2025-03-12** reported with recommendation without amendment `committee-passage`
- **2025-03-12** referred to second reading
- **2025-04-22** read a second time `reading-2`
- **2025-04-22** placed on third reading
- **2025-04-22** placed on immediate passage
- **2025-04-22** read a third time `reading-3`
- **2025-04-22** passed; given immediate effect Roll Call #58 Yeas 106 Nays 2 Excused 0 Not Voting 2 `passage`
- **2025-04-22** transmitted
- **2025-04-29** PASSED BY HOUSE WITH IMMEDIATE EFFECT `passage`
- **2025-04-29** REFERRED TO COMMITTEE ON HEALTH POLICY `referral-committee`
- **2025-11-13** REPORTED FAVORABLY WITHOUT AMENDMENT 11/12/2025 `committee-passage`
- **2025-11-13** REFERRED TO COMMITTEE OF THE WHOLE `referral-committee`
- **2026-02-18** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITHOUT AMENDMENT(S) `committee-passage`
- **2026-02-18** PLACED ON ORDER OF THIRD READING
- **2026-03-04** PASSED; GIVEN IMMEDIATE EFFECT ROLL CALL # 20 YEAS 36 NAYS 0 EXCUSED 1 NOT VOTING 0 `passage`
- **2026-03-04** RETURNED TO HOUSE
- **2026-03-05** returned from Senate without amendment with immediate effect
- **2026-03-05** bill ordered enrolled
- **2026-03-10** presented to the Governor 03/09/2026 01:02 PM `executive-receipt`
- **2026-03-18** approved by the Governor 03/17/2026 10:32 AM `executive-signature`
- **2026-03-18** filed with Secretary of State 03/17/2026 01:17 PM
- **2026-03-18** assigned PA 004'26 with immediate effect

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/2f1567a5-0ab3-426a-9662-9a5ec9840ff0`. Confidence: reported (aggregated from official Michigan legislature records).