---
type: "Bill"
title: "Corrections: parole; parole eligibility for medically frail inmates; modify. Amends secs. 34 & 35 of 1953 PA 232 (MCL 791.234 & 791.235)."
description: "Corrections: parole; parole eligibility for medically frail inmates; modify. Amends secs. 34 & 35 of 1953 PA 232 (MCL 791.234 & 791.235)."
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2023-2024"
identifier: "SB 599"
citation: "Michigan SB 599 (2023-2024)"
classification: ["bill"]
subjects: ["Corrections: parole", "Corrections: prisoners", "Health: other"]
status: "enacted"
primary_sponsors: ["Erika Geiss"]
version_count: 11
action_count: 31
vote_count: 3
first_action: "2023-10-19"
last_action: "2024-07-30"
source: "openstates"
source_identifier: "ocd-bill/38faf23e-ff03-416b-842b-5c1be00c719a"
source_url: "https://legislature.mi.gov/Bills/Bill?ObjectName=2023-SB-0599"
source_hash: "b6ac623281f0ac62acdfe6c71be46cc8a48572974e085c193f08723bff7fa33e"
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 599 (2023-2024) — Corrections: parole; parole eligibility for medically frail inmates; modify. Amends secs. 34 & 35 of 1953 PA 232 (MCL 791.234 & 791.235).

## 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-0599.pdf)
2. **As Passed by the Senate** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billengrossed/Senate/pdf/2023-SEBS-0599.pdf)
3. **Public Act** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/publicact/pdf/2024-PA-0111.pdf)
4. **Senate Concurred Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billconcurred/Senate/pdf/2023-SCB-0599.pdf)
5. **Senate Introduced Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billintroduced/Senate/pdf/2023-SIB-0599.pdf)
6. **Substitute (H-1)** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0599-0N2916.pdf)
7. **Substitute (H-1) - 2** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0599-0O3319.pdf)
8. **Substitute (S-1)** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0599-00B74.pdf)
9. **Substitute (S-1) - 2** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0599-0B735.pdf)
10. **Substitute (S-1) - 3** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0599-00C76.pdf)
11. **Substitute (S-1) - 4** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0599-00D47.pdf)

## Votes

- PASSED ROLL CALL # 211 YEAS 22 NAYS 16 EXCUSED 0 NOT VOTING 0 — **22–16** (pass) · upper
- passed; given immediate effect Roll Call # 242 Yeas 60 Nays 49 Excused 0 Not Voting 1 — **60–49** (pass) · lower
- ROLL CALL: ROLL CALL # 323 YEAS 22 NAYS 16 EXCUSED 0 NOT VOTING 0 — **22–16** (pass) · upper

## Sponsors

- Erika Geiss — primary (person)
- Edward W. McBroom — cosponsor (person)
- Jeff Irwin — cosponsor (person)
- Paul Wojno — cosponsor (person)
- Rosemary Bayer — cosponsor (person)
- Stephanie Chang — cosponsor (person)
- Sue Shink — cosponsor (person)
- Sylvia A. Santana — cosponsor (person)

## Timeline

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

- **2023-10-19** INTRODUCED BY SENATOR ERIKA GEISS `introduction`
- **2023-10-19** REFERRED TO COMMITTEE ON CIVIL RIGHTS, JUDICIARY, AND PUBLIC SAFETY `referral-committee`
- **2024-04-23** REPORTED FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2024-04-23** REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-1) `referral-committee`
- **2024-05-15** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2024-05-15** SUBSTITUTE (S-1) CONCURRED IN
- **2024-05-15** PLACED ON ORDER OF THIRD READING WITH SUBSTITUTE (S-1)
- **2024-06-04** AMENDMENT(S) DEFEATED `amendment-failure`
- **2024-06-04** PASSED ROLL CALL # 211 YEAS 22 NAYS 16 EXCUSED 0 NOT VOTING 0 `passage`
- **2024-06-04** received on 06/04/2024 `introduction`
- **2024-06-04** read a first time `reading-1`
- **2024-06-04** referred to Committee on Judiciary `referral-committee`
- **2024-06-12** referred to Committee on Criminal Justice `referral-committee`
- **2024-06-18** reported with recommendation with substitute (H-1) `committee-passage`
- **2024-06-18** referred to second reading
- **2024-06-26** read a second time `reading-2`
- **2024-06-26** substitute (H-1) adopted
- **2024-06-26** placed on third reading
- **2024-06-26** placed on immediate passage
- **2024-06-26** read a third time `reading-3`
- **2024-06-26** passed; given immediate effect Roll Call # 242 Yeas 60 Nays 49 Excused 0 Not Voting 1 `passage`
- **2024-06-26** inserted full title
- **2024-06-26** returned to Senate
- **2024-06-26** HOUSE SUBSTITUTE (H-1) CONCURRED IN
- **2024-06-26** ROLL CALL: ROLL CALL # 323 YEAS 22 NAYS 16 EXCUSED 0 NOT VOTING 0
- **2024-06-26** FULL TITLE AGREED TO
- **2024-06-26** ORDERED ENROLLED
- **2024-07-30** PRESENTED TO GOVERNOR 07/15/2024 02:40 PM `executive-receipt`
- **2024-07-30** APPROVED BY GOVERNOR 07/23/2024 10:30 AM `executive-signature`
- **2024-07-30** FILED WITH SECRETARY OF STATE 07/23/2024 12:30 PM
- **2024-07-30** ASSIGNED PA 0111'24

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/38faf23e-ff03-416b-842b-5c1be00c719a`. Confidence: reported (aggregated from official Michigan legislature records).