---
type: "Bill"
title: "Higher education: other; prohibition on offering referrals for abortion services in pregnant and parenting student services offices; eliminate. Amends sec. 5 of 2004 PA 500 (MCL 390.1595). TIE BAR WITH: HB 4949'23"
description: "Higher education: other; prohibition on offering referrals for abortion services in pregnant and parenting student services offices; eliminate. Amends sec. 5 of 2004 PA 500 (MCL 390.1595). TIE BAR WITH: HB 4949'23"
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2023-2024"
identifier: "SB 477"
citation: "Michigan SB 477 (2023-2024)"
classification: ["bill"]
subjects: ["Health: abortion", "Higher education: other", "Higher education: students"]
status: "enacted"
primary_sponsors: ["Mary Cavanagh"]
version_count: 10
action_count: 34
vote_count: 2
first_action: "2023-09-07"
last_action: "2023-12-29"
source: "openstates"
source_identifier: "ocd-bill/722a57d8-10f7-4257-8af0-53f3960c70d4"
source_url: "https://legislature.mi.gov/Bills/Bill?ObjectName=2023-SB-0477"
source_hash: "91366b52ec19e04c5f9eee1005f8d23c9fa222333327f5771171aebf51cf920c"
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 477 (2023-2024) — Higher education: other; prohibition on offering referrals for abortion services in pregnant and parenting student services offices; eliminate. Amends sec. 5 of 2004 PA 500 (MCL 390.1595). TIE BAR WITH: HB 4949'23

## 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/Senate/pdf/2023-SEBH-0477.pdf)
2. **As Passed by the Senate** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billengrossed/Senate/pdf/2023-SEBS-0477.pdf)
3. **Public Act** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/publicact/pdf/2023-PA-0207.pdf)
4. **Senate Concurred Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billconcurred/Senate/pdf/2023-SCB-0477.pdf)
5. **Senate Introduced Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2023-2024/billintroduced/Senate/pdf/2023-SIB-0477.pdf)
6. **Substitute (H-1)** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0477-0O3321.pdf)
7. **Substitute (S-1)** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0477-00B74.pdf)
8. **Substitute (S-1) - 2** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0477-0B735.pdf)
9. **Substitute (S-1) - 3** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0477-00C76.pdf)
10. **Substitute (S-1) - 4** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2023-SCVBS-0477-00D47.pdf)

## Votes

- PASSED ROLL CALL # 568 YEAS 20 NAYS 18 EXCUSED 0 NOT VOTING 0 — **20–18** (pass) · upper
- passed; given immediate effect Roll Call # 468 Yeas 56 Nays 54 Excused 0 Not Voting 0 — **56–54** (pass) · lower

## Sponsors

- Mary Cavanagh — primary (person)
- Dayna Polehanki — cosponsor (person)
- Erika Geiss — cosponsor (person)
- Jeff Irwin — cosponsor (person)
- Kevin Hertel — cosponsor (person)
- Paul Wojno — cosponsor (person)
- Rosemary Bayer — cosponsor (person)
- Sarah Anthony — cosponsor (person)
- Sean McCann — cosponsor (person)
- Stephanie Chang — cosponsor (person)
- Sue Shink — cosponsor (person)
- Winnie Brinks — cosponsor (person)

## Timeline

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

- **2023-09-07** INTRODUCED BY SENATOR MARY CAVANAGH `introduction`
- **2023-09-07** REFERRED TO COMMITTEE ON HOUSING AND HUMAN SERVICES `referral-committee`
- **2023-10-18** REPORTED FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2023-10-18** REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-1) `referral-committee`
- **2023-10-19** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2023-10-19** SUBSTITUTE (S-1) CONCURRED IN
- **2023-10-19** PLACED ON ORDER OF THIRD READING WITH SUBSTITUTE (S-1)
- **2023-10-19** RULES SUSPENDED
- **2023-10-19** PLACED ON IMMEDIATE PASSAGE
- **2023-10-19** AMENDMENT(S) DEFEATED `amendment-failure`
- **2023-10-19** PASSED ROLL CALL # 568 YEAS 20 NAYS 18 EXCUSED 0 NOT VOTING 0 `passage`
- **2023-10-24** received on 10/20/2023 `introduction`
- **2023-10-24** read a first time `reading-1`
- **2023-10-31** notice given to discharge committee
- **2023-10-24** referred to Committee on Health Policy `referral-committee`
- **2023-11-01** motion to discharge committee approved
- **2023-11-01** placed on second reading
- **2023-11-01** read a second time `reading-2`
- **2023-11-01** substitute (H-1) adopted
- **2023-11-01** placed on third reading
- **2023-11-01** placed on immediate passage
- **2023-11-01** read a third time `reading-3`
- **2023-11-01** passed; given immediate effect Roll Call # 468 Yeas 56 Nays 54 Excused 0 Not Voting 0 `passage`
- **2023-11-01** inserted full title
- **2023-11-01** returned to Senate
- **2023-11-02** LAID OVER ONE DAY UNDER THE RULES
- **2023-11-07** HOUSE SUBSTITUTE (H-1) CONCURRED IN
- **2023-11-07** ROLL CALL: ROLL CALL # 658 YEAS 20 NAYS 17 EXCUSED 1 NOT VOTING 0
- **2023-11-07** FULL TITLE AGREED TO
- **2023-11-07** ORDERED ENROLLED
- **2023-12-29** PRESENTED TO GOVERNOR 11/17/2023 09:53 AM `executive-receipt`
- **2023-12-29** APPROVED BY GOVERNOR 11/21/2023 01:16 PM `executive-signature`
- **2023-12-29** FILED WITH SECRETARY OF STATE 11/22/2023 01:16 PM
- **2023-12-29** ASSIGNED PA 0207'23

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/722a57d8-10f7-4257-8af0-53f3960c70d4`. Confidence: reported (aggregated from official Michigan legislature records).