---
type: "Bill"
title: "Appropriations: school aid; fiscal year 2025-2026 appropriations for K-12 school aid; provide for. Amends, adds & repeals (See bill)."
description: "Appropriations: school aid; fiscal year 2025-2026 appropriations for K-12 school aid; provide for. Amends, adds & repeals (See bill)."
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2025-2026"
identifier: "SB 166"
citation: "Michigan SB 166 (2025-2026)"
classification: ["bill"]
subjects: ["Appropriations: school aid"]
status: "enacted"
primary_sponsors: ["Darrin Camilleri"]
version_count: 16
action_count: 49
vote_count: 4
first_action: "2025-03-18"
last_action: "2025-10-08"
source: "openstates"
source_identifier: "ocd-bill/85351a18-455c-42b5-811b-11212da015b3"
source_url: "https://legislature.mi.gov/Bills/Bill?ObjectName=2025-SB-0166"
source_hash: "9b93b77bf586794c55cfb231eeed2d0b172cc9f16b3481490a1cabcc5e447368"
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 166 (2025-2026) — Appropriations: school aid; fiscal year 2025-2026 appropriations for K-12 school aid; provide for. Amends, adds & repeals (See bill).

## 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/Senate/pdf/2025-SEBH-0166.pdf)
2. **As Passed by the Senate** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/billengrossed/Senate/pdf/2025-SEBS-0166.pdf)
3. **Conference Report** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/billconferencereport/Senate/pdf/2025-SB-0166-CR-1.pdf)
4. **House Concurred Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/billconcurred/House/pdf/2025-HCB-0166.pdf)
5. **Public Act** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/publicact/pdf/2025-PA-0015.pdf)
6. **Senate Concurred Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/billconcurred/Senate/pdf/2025-SCB-0166.pdf)
7. **Senate Introduced Bill** (committee substitute) — [source](https://legislature.mi.gov/documents/2025-2026/billintroduced/Senate/pdf/2025-SIB-0166.pdf)
8. **Substitute (H-5)** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2025-SCVBH-0166-0O3321.pdf)
9. **Substitute (H-5) - 2** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2025-SCVBS-0166-0F1129.pdf)
10. **Substitute (H-5) - 3** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2025-SCVBS-0166-0G7132.pdf)
11. **Substitute (H-5) - 4** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2025-SCVBH-0166-0T6134.pdf)
12. **Substitute (S-3)** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2025-SCVBS-0166-00B74.pdf)
13. **Substitute (S-3) - 2** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2025-SCVBS-0166-0B736.pdf)
14. **Substitute (S-3) - 3** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2025-SCVBS-0166-0C107.pdf)
15. **Substitute (S-3) - 4** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2025-SCVBS-0166-00D78.pdf)
16. **Substitute (S-3) - 5** (committee substitute) — [source](https://legislature.mi.gov/Home/GetObject?objectName=2025-SCVBS-0166-0D319.pdf)

## Votes

- passed; given immediate effect Roll Call #236 Yeas 108 Nays 1 Excused 0 Not Voting 1 — **108–1** (pass) · lower
- SENATE ADOPTED CONFERENCE REPORT WITH IMMEDIATE EFFECT ROLL CALL # 257 YEAS 31 NAYS 5 EXCUSED 1 NOT VOTING 0 — **24–5** (pass) · upper
- PASSED ROLL CALL # 127 YEAS 19 NAYS 17 EXCUSED 1 NOT VOTING 0 — **19–17** (pass) · upper
- conference report adopted Roll Call #247 Yeas 104 Nays 5 Excused 0 Not Voting 1 — **104–5** (pass) · lower

## Sponsors

- Darrin Camilleri — primary (person)

## Timeline

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

- **2025-03-18** INTRODUCED BY SENATOR DARRIN CAMILLERI `introduction`
- **2025-03-18** REFERRED TO COMMITTEE ON APPROPRIATIONS `referral-committee`
- **2025-05-08** REPORTED FAVORABLY WITH SUBSTITUTE (S-3) 5/6/2025 `committee-passage`
- **2025-05-08** COMMITTEE RECOMMENDED IMMEDIATE EFFECT
- **2025-05-08** REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-3) `referral-committee`
- **2025-05-13** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITH SUBSTITUTE (S-3) AND AMENDMENT(S) `committee-passage`
- **2025-05-13** SUBSTITUTE (S-3) AS AMENDED CONCURRED IN
- **2025-05-13** PLACED ON ORDER OF THIRD READING WITH SUBSTITUTE (S-3) AS AMENDED
- **2025-05-14** AMENDMENT(S) DEFEATED `amendment-failure`
- **2025-05-14** AMENDMENT(S) WITHDRAWN
- **2025-05-14** PASSED ROLL CALL # 127 YEAS 19 NAYS 17 EXCUSED 1 NOT VOTING 0 `passage`
- **2025-05-14** received on 05/14/2025 `introduction`
- **2025-05-14** read a first time `reading-1`
- **2025-05-14** referred to Committee on Appropriations `referral-committee`
- **2025-06-26** rule suspended
- **2025-06-26** motion to discharge committee approved
- **2025-06-26** placed on second reading
- **2025-10-01** read a second time `reading-2`
- **2025-10-01** substitute (H-5) adopted
- **2025-10-01** placed on third reading
- **2025-10-01** placed on immediate passage
- **2025-10-01** read a third time `reading-3`
- **2025-10-01** passed; given immediate effect Roll Call #236 Yeas 108 Nays 1 Excused 0 Not Voting 1 `passage`
- **2025-10-01** title amended
- **2025-10-01** returned to Senate
- **2025-10-01** PASSED BY HOUSE WITH SUBSTITUTE (H-5) `passage`
- **2025-10-01** HOUSE AMENDED TITLE
- **2025-10-01** RULES SUSPENDED FOR IMMEDIATE CONSIDERATION
- **2025-10-01** HOUSE SUBSTITUTE (H-5) NONCONCURRED IN
- **2025-10-01** SENATE NAMED CONFEREES 10/1/2025: SENS. DARRIN CAMILLERI, SARAH ANTHONY, JON BUMSTEAD
- **2025-10-02** re-received from Senate with notice of nonconcurrence in House substitute (H-5)
- **2025-10-02** Senate conferees named 10/01/2025: Sens. Darrin Camilleri Sarah Anthony Jon Bumstead
- **2025-10-02** House conferees named 10/01/2025: Reps. Ann Bollin Tim Kelly Carol Glanville
- **2025-10-02** HOUSE NAMED CONFEREES 10/1/2025: REPS. ANN BOLLIN, TIM KELLY, CAROL GLANVILLE
- **2025-10-02** REFERRED TO CONFERENCE COMMITTEE
- **2025-10-03** CONFERENCE REPORT RECEIVED IN SENATE
- **2025-10-03** SENATE ADOPTED CONFERENCE REPORT WITH IMMEDIATE EFFECT ROLL CALL # 257 YEAS 31 NAYS 5 EXCUSED 1 NOT VOTING 0
- **2025-10-03** conference report received
- **2025-10-03** conference report adopted by Senate with immediate effect
- **2025-10-03** rule suspended
- **2025-10-03** conference report adopted Roll Call #247 Yeas 104 Nays 5 Excused 0 Not Voting 1
- **2025-10-03** re-returned to Senate
- **2025-10-03** HOUSE ADOPTED CONFERENCE REPORT WITH IMMEDIATE EFFECT
- **2025-10-03** ORDERED ENROLLED
- **2025-10-07** PRESENTED TO GOVERNOR 10/4/2025 8:50 AM `executive-receipt`
- **2025-10-08** APPROVED BY GOVERNOR 10/7/2025 12:00 PM `executive-signature`
- **2025-10-08** FILED WITH SECRETARY OF STATE 10/7/2025 1:16 PM
- **2025-10-08** ASSIGNED PA 0015'25 WITH IMMEDIATE EFFECT
- **2025-10-03** FOR FINAL DISPOSITION OF BUDGET, SEE HB 4706

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/85351a18-455c-42b5-811b-11212da015b3`. Confidence: reported (aggregated from official Michigan legislature records).