---
type: "Bill"
title: "Michigan business tax; credits; amendments to extend the duration of certain brownfield projects beyond 10 years; allow. Amends sec. 437 of 2007 PA 36 (MCL 208.1437)."
description: "Michigan business tax; credits; amendments to extend the duration of certain brownfield projects beyond 10 years; allow. Amends sec. 437 of 2007 PA 36 (MCL 208.1437)."
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2017-2018"
identifier: "HB 4420"
citation: "Michigan HB 4420 (2017-2018)"
classification: ["bill"]
subjects: ["Michigan business tax: credits", "Economic development: brownfield redevelopment authority", "Michigan business tax: economic development"]
status: "enacted"
primary_sponsors: []
version_count: 5
action_count: 26
vote_count: 2
first_action: "2017-03-28T04:00:00+00:00"
last_action: "2017-12-28T05:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/c82320a7-2cd1-490d-a2a4-8cc39b75d819"
source_url: "http://legislature.mi.gov/doc.aspx?2017-HB-4420"
source_hash: "0a72dcc98d51b196993a59928677af4d71252b9272978b3eec78943960724e39"
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 4420 (2017-2018) — Michigan business tax; credits; amendments to extend the duration of certain brownfield projects beyond 10 years; allow. Amends sec. 437 of 2007 PA 36 (MCL 208.1437).

## 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](http://www.legislature.mi.gov/documents/2017-2018/billengrossed/House/htm/2017-HEBH-4420.htm)
2. **As Passed by the Senate** (committee substitute) — [source](http://www.legislature.mi.gov/documents/2017-2018/billengrossed/House/htm/2017-HEBS-4420.htm)
3. **House Concurred Bill** (committee substitute) — [source](http://www.legislature.mi.gov/documents/2017-2018/billconcurred/House/htm/2017-HCB-4420.htm)
4. **House Introduced Bill** (committee substitute) — [source](http://www.legislature.mi.gov/documents/2017-2018/billintroduced/House/htm/2017-HIB-4420.htm)
5. **Public Act** (committee substitute) — [source](http://www.legislature.mi.gov/documents/2017-2018/publicact/htm/2017-PA-0217.htm)

## Votes

- PASSED; GIVEN IMMEDIATE EFFECT ROLL CALL # 545 YEAS 34 NAYS 4 EXCUSED 0 NOT VOTING 0 — **34–4** (pass) · upper
- passed; given immediate effect Roll Call # 338 Yeas 95 Nays 13 — **95–13** (pass) · lower

## Sponsors

- 43 — cosponsor (person)
- Andy Schor — cosponsor (person)
- Jim Tedder — cosponsor (person)

## Timeline

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

- **2017-03-28T04:00:00+00:00** introduced by Representative Jim Tedder `introduction`
- **2017-03-28T04:00:00+00:00** read a first time `reading-1`
- **2017-03-28T04:00:00+00:00** referred to Committee on Tax Policy `referral-committee`
- **2017-03-29T04:00:00+00:00** bill electronically reproduced 03/28/2017
- **2017-06-07T04:00:00+00:00** reported with recommendation without amendment `committee-passage`
- **2017-06-07T04:00:00+00:00** referred to second reading
- **2017-10-31T04:00:00+00:00** read a second time `reading-2`
- **2017-10-31T04:00:00+00:00** placed on third reading
- **2017-11-01T04:00:00+00:00** read a third time `reading-3`
- **2017-11-01T04:00:00+00:00** passed; given immediate effect Roll Call # 338 Yeas 95 Nays 13 `passage`
- **2017-11-01T04:00:00+00:00** transmitted
- **2017-11-07T05:00:00+00:00** REFERRED TO COMMITTEE ON FINANCE `referral-committee`
- **2017-11-30T05:00:00+00:00** REPORTED FAVORABLY WITHOUT AMENDMENT `committee-passage`
- **2017-11-30T05:00:00+00:00** COMMITTEE RECOMMENDED IMMEDIATE EFFECT
- **2017-11-30T05:00:00+00:00** REFERRED TO COMMITTEE OF THE WHOLE `referral-committee`
- **2017-12-12T05:00:00+00:00** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITHOUT AMENDMENT(S) `committee-passage`
- **2017-12-12T05:00:00+00:00** PLACED ON ORDER OF THIRD READING
- **2017-12-13T05:00:00+00:00** PASSED; GIVEN IMMEDIATE EFFECT ROLL CALL # 545 YEAS 34 NAYS 4 EXCUSED 0 NOT VOTING 0 `passage`
- **2017-12-13T05:00:00+00:00** INSERTED FULL TITLE
- **2017-12-13T05:00:00+00:00** returned from Senate without amendment with immediate effect and full title
- **2017-12-13T05:00:00+00:00** full title agreed to
- **2017-12-13T05:00:00+00:00** bill ordered enrolled
- **2017-12-28T05:00:00+00:00** presented to the Governor 12/18/2017 @ 11:22 AM `executive-receipt`
- **2017-12-28T05:00:00+00:00** approved by the Governor 12/19/2017 @ 8:14 PM `executive-signature`
- **2017-12-28T05:00:00+00:00** filed with Secretary of State 12/20/2017 @ 3:14 PM
- **2017-12-28T05:00:00+00:00** assigned PA 217'17 with immediate effect

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/c82320a7-2cd1-490d-a2a4-8cc39b75d819`. Confidence: reported (aggregated from official Michigan legislature records).