---
type: "Bill"
title: "Crimes: criminal sexual conduct; definition of mentally incapacitated for criminal sexual conduct cases; modify. Amends sec. 520a of 1931 PA 328 (MCL 750.520a)."
description: "Crimes: criminal sexual conduct; definition of mentally incapacitated for criminal sexual conduct cases; modify. Amends sec. 520a of 1931 PA 328 (MCL 750.520a)."
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2023-2024"
identifier: "SB 236"
citation: "Michigan SB 236 (2023-2024)"
classification: ["bill"]
subjects: ["Crimes: criminal sexual conduct"]
status: "enacted"
primary_sponsors: ["Jeff Irwin"]
version_count: 8
action_count: 26
vote_count: 2
first_action: "2023-03-23"
last_action: "2023-07-18"
source: "openstates"
source_identifier: "ocd-bill/81941064-8a00-403b-a476-d3f2c9d26031"
source_url: "https://legislature.mi.gov/Bills/Bill?ObjectName=2023-SB-0236"
source_hash: "75ed597cd335c664d761928af844dc084105272beffa2df7f303c9d91162ee44"
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 236 (2023-2024) — Crimes: criminal sexual conduct; definition of mentally incapacitated for criminal sexual conduct cases; modify. Amends sec. 520a of 1931 PA 328 (MCL 750.520a).

## 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-0236.pdf)
2. **As Passed by the Senate** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billengrossed/Senate/pdf/2023-SEBS-0236.pdf)
3. **Public Act** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/publicact/pdf/2023-PA-0065.pdf)
4. **Senate Introduced Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billintroduced/Senate/pdf/2023-SIB-0236.pdf)
5. **Substitute (S-1)** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0236-00B74.pdf)
6. **Substitute (S-1) - 2** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0236-0B735.pdf)
7. **Substitute (S-1) - 3** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0236-00C76.pdf)
8. **Substitute (S-1) - 4** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0236-00D47.pdf)

## Votes

- passed; given immediate effect Roll Call # 201 Yeas 105 Nays 4 Excused 0 Not Voting 1 — **105–4** (pass) · lower
- PASSED ROLL CALL # 143 YEAS 38 NAYS 0 EXCUSED 0 NOT VOTING 0 — **38–0** (pass) · upper

## Sponsors

- Jeff Irwin — primary (person)
- Dayna Polehanki — cosponsor (person)
- Edward W. McBroom — cosponsor (person)
- Erika Geiss — cosponsor (person)
- Rosemary Bayer — cosponsor (person)
- Ruth A. Johnson — cosponsor (person)
- Sam Singh — cosponsor (person)
- Stephanie Chang — cosponsor (person)
- Sylvia A. Santana — cosponsor (person)

## Timeline

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

- **2023-03-23** INTRODUCED BY SENATOR JEFF IRWIN `introduction`
- **2023-03-23** REFERRED TO COMMITTEE ON CIVIL RIGHTS, JUDICIARY, AND PUBLIC SAFETY `referral-committee`
- **2023-04-25** REPORTED FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2023-04-25** REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-1) `referral-committee`
- **2023-05-02** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2023-05-02** SUBSTITUTE (S-1) CONCURRED IN
- **2023-05-02** PLACED ON ORDER OF THIRD READING WITH SUBSTITUTE (S-1)
- **2023-05-03** PASSED ROLL CALL # 143 YEAS 38 NAYS 0 EXCUSED 0 NOT VOTING 0 `passage`
- **2023-05-03** received on 05/03/2023 `introduction`
- **2023-05-03** read a first time `reading-1`
- **2023-05-03** referred to Committee on Judiciary `referral-committee`
- **2023-06-14** reported with recommendation without amendment `committee-passage`
- **2023-06-14** referred to second reading
- **2023-06-20** read a second time `reading-2`
- **2023-06-20** placed on third reading
- **2023-06-21** read a third time `reading-3`
- **2023-06-21** passed; given immediate effect Roll Call # 201 Yeas 105 Nays 4 Excused 0 Not Voting 1 `passage`
- **2023-06-21** inserted full title
- **2023-06-21** returned to Senate
- **2023-06-27** GIVEN IMMEDIATE EFFECT
- **2023-06-27** FULL TITLE AGREED TO
- **2023-06-27** ORDERED ENROLLED
- **2023-07-18** PRESENTED TO GOVERNOR 07/06/2023 02:16 PM `executive-receipt`
- **2023-07-18** APPROVED BY GOVERNOR 07/11/2023 12:50 PM `executive-signature`
- **2023-07-18** FILED WITH SECRETARY OF STATE 07/12/2023 10:22 AM
- **2023-07-18** ASSIGNED PA 0065'23 WITH IMMEDIATE EFFECT

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/81941064-8a00-403b-a476-d3f2c9d26031`. Confidence: reported (aggregated from official Michigan legislature records).