---
type: "Bill"
title: "Traffic control: driver license; waiver of knowledge test for an individual with military commercial motor vehicle experience; provide for. Amends sec. 312f of 1949 PA 300 (MCL 257.312f)."
description: "Traffic control: driver license; waiver of knowledge test for an individual with military commercial motor vehicle experience; provide for. Amends sec. 312f of 1949 PA 300 (MCL 257.312f)."
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2021-2022"
identifier: "HB 4787"
citation: "Michigan HB 4787 (2021-2022)"
classification: ["bill"]
subjects: ["State agencies (existing): state", "Traffic control: driver license"]
status: "enacted"
primary_sponsors: ["Gregory Markkanen"]
version_count: 5
action_count: 30
vote_count: 3
first_action: "2021-05-05T04:00:00+00:00"
last_action: "2021-12-15T05:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/5cb53c21-7691-438a-9d63-993670a43b3d"
source_url: "http://legislature.mi.gov/doc.aspx?2021-HB-4787"
source_hash: "2db93886609bcdc2743783d8b296d5c0f86136b992924e6ff5454a83e1837429"
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 4787 (2021-2022) — Traffic control: driver license; waiver of knowledge test for an individual with military commercial motor vehicle experience; provide for. Amends sec. 312f of 1949 PA 300 (MCL 257.312f).

## 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://legislature.mi.gov/documents/2021-2022/billengrossed/House/htm/2021-HEBH-4787.htm)
2. **As Passed by the Senate** (committee substitute) — [source](http://legislature.mi.gov/documents/2021-2022/billengrossed/House/htm/2021-HEBS-4787.htm)
3. **House Concurred Bill** (committee substitute) — [source](http://legislature.mi.gov/documents/2021-2022/billconcurred/House/htm/2021-HCB-4787.htm)
4. **House Introduced Bill** (committee substitute) — [source](http://legislature.mi.gov/documents/2021-2022/billintroduced/House/htm/2021-HIB-4787.htm)
5. **Public Act** (committee substitute) — [source](http://legislature.mi.gov/documents/2021-2022/publicact/htm/2021-PA-0148.htm)

## Votes

- roll call Roll Call # 608 Yeas 103 Nays 0 Excused 0 Not Voting 4 — **103–0** (pass) · lower
- passed; given immediate effect Roll Call # 373 Yeas 107 Nays 0 Excused 0 Not Voting 3 — **107–0** (pass) · lower
- PASSED; GIVEN IMMEDIATE EFFECT ROLL CALL # 474 YEAS 37 NAYS 0 EXCUSED 1 NOT VOTING 0 — **37–0** (pass) · upper

## Sponsors

- Gregory Markkanen — primary (person)

## Timeline

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

- **2021-05-05T04:00:00+00:00** introduced by Representative Gregory Markkanen `introduction`
- **2021-05-05T04:00:00+00:00** read a first time `reading-1`
- **2021-05-05T04:00:00+00:00** referred to Committee on Transportation `referral-committee`
- **2021-05-06T04:00:00+00:00** bill electronically reproduced 05/05/2021
- **2021-06-08T04:00:00+00:00** reported with recommendation without amendment `committee-passage`
- **2021-06-08T04:00:00+00:00** referred to second reading
- **2021-06-23T04:00:00+00:00** read a second time `reading-2`
- **2021-06-23T04:00:00+00:00** placed on third reading
- **2021-06-24T04:00:00+00:00** read a third time `reading-3`
- **2021-06-24T04:00:00+00:00** passed; given immediate effect Roll Call # 373 Yeas 107 Nays 0 Excused 0 Not Voting 3 `passage`
- **2021-06-24T04:00:00+00:00** transmitted
- **2021-06-30T04:00:00+00:00** REFERRED TO COMMITTEE ON TRANSPORTATION AND INFRASTRUCTURE `referral-committee`
- **2021-12-02T05:00:00+00:00** REPORTED FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2021-12-02T05:00:00+00:00** COMMITTEE RECOMMENDED IMMEDIATE EFFECT
- **2021-12-02T05:00:00+00:00** REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-1) `referral-committee`
- **2021-12-08T05:00:00+00:00** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITH SUBSTITUTE (S-1) `committee-passage`
- **2021-12-08T05:00:00+00:00** SUBSTITUTE (S-1) CONCURRED IN
- **2021-12-08T05:00:00+00:00** PLACED ON ORDER OF THIRD READING WITH SUBSTITUTE (S-1)
- **2021-12-09T05:00:00+00:00** PASSED; GIVEN IMMEDIATE EFFECT ROLL CALL # 474 YEAS 37 NAYS 0 EXCUSED 1 NOT VOTING 0 `passage`
- **2021-12-09T05:00:00+00:00** TITLE AMENDED
- **2021-12-09T05:00:00+00:00** returned from Senate with substitute (S-1) with immediate effect and title amendment
- **2021-12-09T05:00:00+00:00** laid over one day under the rules
- **2021-12-14T05:00:00+00:00** Senate substitute (S-1) concurred in
- **2021-12-14T05:00:00+00:00** roll call Roll Call # 608 Yeas 103 Nays 0 Excused 0 Not Voting 4
- **2021-12-14T05:00:00+00:00** title amendment agreed to
- **2021-12-14T05:00:00+00:00** bill ordered enrolled
- **2021-12-15T05:00:00+00:00** presented to the Governor 12/17/2021 11:12 AM `executive-receipt`
- **2021-12-15T05:00:00+00:00** approved by the Governor 12/23/2021 10:18 AM `executive-signature`
- **2021-12-15T05:00:00+00:00** filed with Secretary of State 12/27/2021 12:30 PM
- **2021-12-15T05:00:00+00:00** assigned PA 148'21 with immediate effect

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/5cb53c21-7691-438a-9d63-993670a43b3d`. Confidence: reported (aggregated from official Michigan legislature records).