---
type: "Bill"
title: "Traffic control; traffic regulation; requirement that emergency lights be mounted on the roof of an authorized emergency vehicle; eliminate. Amends sec. 698 of 1949 PA 300 (MCL 257.698)."
description: "Traffic control; traffic regulation; requirement that emergency lights be mounted on the roof of an authorized emergency vehicle; eliminate. Amends sec. 698 of 1949 PA 300 (MCL 257.698)."
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2017-2018"
identifier: "SB 46"
citation: "Michigan SB 46 (2017-2018)"
classification: ["bill"]
subjects: ["Traffic control: traffic regulation", "Vehicles: equipment", "Vehicles: emergency vehicles"]
status: "enacted"
primary_sponsors: []
version_count: 4
action_count: 26
vote_count: 2
first_action: "2017-01-18T05:00:00+00:00"
last_action: "2017-05-30T04:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/53c7ef8b-8039-4ce3-a359-d90470d3df2b"
source_url: "http://legislature.mi.gov/doc.aspx?2017-SB-0046"
source_hash: "d46a2672536883aef11f47b334cc34325f27278c25b14979a10e473bbb416922"
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 46 (2017-2018) — Traffic control; traffic regulation; requirement that emergency lights be mounted on the roof of an authorized emergency vehicle; eliminate. Amends sec. 698 of 1949 PA 300 (MCL 257.698).

## 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/Senate/htm/2017-SEBH-0046.htm)
2. **As Passed by the Senate** (committee substitute) — [source](http://www.legislature.mi.gov/documents/2017-2018/billengrossed/Senate/htm/2017-SEBS-0046.htm)
3. **Public Act** (committee substitute) — [source](http://www.legislature.mi.gov/documents/2017-2018/publicact/htm/2017-PA-0037.htm)
4. **Senate Introduced Bill** (committee substitute) — [source](http://www.legislature.mi.gov/documents/2017-2018/billintroduced/Senate/htm/2017-SIB-0046.htm)

## Votes

- passed; given immediate effect Roll Call # 91 Yeas 94 Nays 12 — **94–12** (pass) · lower
- PASSED ROLL CALL # 74 YEAS 37 NAYS 0 EXCUSED 1 NOT VOTING 0 — **37–0** (pass) · upper

## Sponsors

- 17 — cosponsor (person)
- Dale Zorn — cosponsor (person)
- Jim Stamas — cosponsor (person)
- Kenneth Horn — cosponsor (person)
- Mike Nofs — cosponsor (person)

## Timeline

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

- **2017-01-18T05:00:00+00:00** INTRODUCED BY SENATOR DALE ZORN `introduction`
- **2017-01-18T05:00:00+00:00** REFERRED TO COMMITTEE ON TRANSPORTATION `referral-committee`
- **2017-03-14T04:00:00+00:00** REPORTED FAVORABLY WITHOUT AMENDMENT `committee-passage`
- **2017-03-14T04:00:00+00:00** COMMITTEE RECOMMENDED IMMEDIATE EFFECT
- **2017-03-14T04:00:00+00:00** REFERRED TO COMMITTEE OF THE WHOLE `referral-committee`
- **2017-03-15T04:00:00+00:00** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITHOUT AMENDMENT(S) `committee-passage`
- **2017-03-15T04:00:00+00:00** PLACED ON ORDER OF THIRD READING
- **2017-03-16T04:00:00+00:00** PASSED ROLL CALL # 74 YEAS 37 NAYS 0 EXCUSED 1 NOT VOTING 0 `passage`
- **2017-03-16T04:00:00+00:00** received on 03/16/2017 `introduction`
- **2017-03-16T04:00:00+00:00** read a first time `reading-1`
- **2017-03-16T04:00:00+00:00** referred to Committee on Transportation and Infrastructure `referral-committee`
- **2017-04-25T04:00:00+00:00** reported with recommendation without amendment `committee-passage`
- **2017-04-25T04:00:00+00:00** referred to second reading
- **2017-05-02T04:00:00+00:00** read a second time `reading-2`
- **2017-05-02T04:00:00+00:00** placed on third reading
- **2017-05-03T04:00:00+00:00** read a third time `reading-3`
- **2017-05-03T04:00:00+00:00** passed; given immediate effect Roll Call # 91 Yeas 94 Nays 12 `passage`
- **2017-05-03T04:00:00+00:00** inserted full title
- **2017-05-03T04:00:00+00:00** returned to Senate
- **2017-05-04T04:00:00+00:00** GIVEN IMMEDIATE EFFECT
- **2017-05-04T04:00:00+00:00** FULL TITLE AGREED TO
- **2017-05-04T04:00:00+00:00** ORDERED ENROLLED
- **2017-05-16T04:00:00+00:00** PRESENTED TO GOVERNOR 5/11/2017 @ 11:08 AM `executive-receipt`
- **2017-05-30T04:00:00+00:00** APPROVED BY GOVERNOR 5/23/2017 @ 8:18 AM `executive-signature`
- **2017-05-30T04:00:00+00:00** FILED WITH SECRETARY OF STATE 5/23/2017 @ 10:48 AM
- **2017-05-30T04:00:00+00:00** ASSIGNED PA 0037'17 WITH IMMEDIATE EFFECT

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/53c7ef8b-8039-4ce3-a359-d90470d3df2b`. Confidence: reported (aggregated from official Michigan legislature records).