---
type: "Bill"
title: "Probate: powers of attorney; reference to powers of attorney in public health code; revise to reflect adoption of uniform power of attorney act. Amends secs. 10121 & 10301 of 1978 PA 368 (MCL 333.10121 & 333.10301). TIE BAR WITH: HB 4644'23"
description: "Probate: powers of attorney; reference to powers of attorney in public health code; revise to reflect adoption of uniform power of attorney act. Amends secs. 10121 & 10301 of 1978 PA 368 (MCL 333.10121 & 333.10301). TIE BAR WITH: HB 4644'23"
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2023-2024"
identifier: "HB 4646"
citation: "Michigan HB 4646 (2023-2024)"
classification: ["bill"]
subjects: ["Law: uniform or model acts", "Probate: powers of attorney"]
status: "enacted"
primary_sponsors: ["Jim Haadsma"]
version_count: 5
action_count: 26
vote_count: 2
first_action: "2023-05-23"
last_action: "2023-11-08"
source: "openstates"
source_identifier: "ocd-bill/a8a85d9e-c94f-4a5b-ac9b-f91a59bfef45"
source_url: "https://legislature.mi.gov/Bills/Bill?ObjectName=2023-HB-4646"
source_hash: "b4562942488faacaf8dcd5604fd0631a4e604a681e16d41acea32939f9785a21"
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 4646 (2023-2024) — Probate: powers of attorney; reference to powers of attorney in public health code; revise to reflect adoption of uniform power of attorney act. Amends secs. 10121 & 10301 of 1978 PA 368 (MCL 333.10121 & 333.10301). TIE BAR WITH: HB 4644'23

## 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-4646.pdf)
2. **As Passed by the Senate** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billengrossed/House/pdf/2023-HEBS-4646.pdf)
3. **House Concurred Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billconcurred/House/pdf/2023-HCB-4646.pdf)
4. **House Introduced Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billintroduced/House/pdf/2023-HIB-4646.pdf)
5. **Public Act** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/publicact/pdf/2023-PA-0189.pdf)

## Votes

- passed; given immediate effect Roll Call # 245 Yeas 104 Nays 4 Excused 0 Not Voting 2 — **104–4** (pass) · lower
- PASSED ROLL CALL # 588 YEAS 38 NAYS 0 EXCUSED 0 NOT VOTING 0 — **38–0** (pass) · upper

## Sponsors

- Jim Haadsma — primary (person)
- Donavan McKinney — cosponsor (person)
- Emily Dievendorf — cosponsor (person)
- Erin Byrnes — cosponsor (person)
- Jason Morgan — cosponsor (person)
- Jenn Hill — cosponsor (person)
- Julie Rogers — cosponsor (person)
- Kara Hope — cosponsor (person)
- Kimberly Edwards — cosponsor (person)
- Nancy DeBoer — cosponsor (person)
- Rachel Hood — cosponsor (person)
- Reggie Miller — cosponsor (person)
- Sharon MacDonell — cosponsor (person)
- Tullio Liberati — cosponsor (person)
- Tyrone Carter — cosponsor (person)
- Veronica Paiz — cosponsor (person)

## Timeline

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

- **2023-05-23** introduced by Representative Jim Haadsma `introduction`
- **2023-05-23** read a first time `reading-1`
- **2023-05-23** referred to Committee on Judiciary `referral-committee`
- **2023-05-24** bill electronically reproduced 05/23/2023
- **2023-06-21** reported with recommendation without amendment `committee-passage`
- **2023-06-21** referred to second reading
- **2023-06-27** read a second time `reading-2`
- **2023-06-27** placed on third reading
- **2023-06-27** placed on immediate passage
- **2023-06-27** read a third time `reading-3`
- **2023-06-27** passed; given immediate effect Roll Call # 245 Yeas 104 Nays 4 Excused 0 Not Voting 2 `passage`
- **2023-06-27** transmitted
- **2023-06-28** REFERRED TO COMMITTEE ON CIVIL RIGHTS, JUDICIARY, AND PUBLIC SAFETY `referral-committee`
- **2023-10-17** REPORTED FAVORABLY WITHOUT AMENDMENT `committee-passage`
- **2023-10-17** REFERRED TO COMMITTEE OF THE WHOLE `referral-committee`
- **2023-10-19** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITHOUT AMENDMENT(S) `committee-passage`
- **2023-10-19** PLACED ON ORDER OF THIRD READING
- **2023-10-24** PASSED ROLL CALL # 588 YEAS 38 NAYS 0 EXCUSED 0 NOT VOTING 0 `passage`
- **2023-10-24** INSERTED FULL TITLE
- **2023-10-24** returned from Senate without amendment with full title
- **2023-10-24** full title agreed to
- **2023-10-24** bill ordered enrolled
- **2023-11-07** presented to the Governor 10/27/2023 02:39 PM `executive-receipt`
- **2023-11-08** approved by the Governor 11/07/2023 01:16 PM `executive-signature`
- **2023-11-08** filed with Secretary of State 11/07/2023 02:24 PM
- **2023-11-08** assigned PA 189'23

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/a8a85d9e-c94f-4a5b-ac9b-f91a59bfef45`. Confidence: reported (aggregated from official Michigan legislature records).