---
type: "Bill"
title: "Natural resources; Great Lakes; use of certain bottomlands for private harbors; provide for. Amends secs. 32505 & 32511 of 1994 PA 451 (MCL 324.32505 & 324.32511)."
description: "Natural resources; Great Lakes; use of certain bottomlands for private harbors; provide for. Amends secs. 32505 & 32511 of 1994 PA 451 (MCL 324.32505 & 324.32511)."
jurisdiction: "us/states/mi"
legislature: "Michigan Legislature"
session: "2017-2018"
identifier: "SB 409"
citation: "Michigan SB 409 (2017-2018)"
classification: ["bill"]
subjects: ["Natural resources: Great Lakes", "Environmental protection: permits", "State agencies (existing): environmental quality"]
status: "enacted"
primary_sponsors: []
version_count: 5
action_count: 29
vote_count: 3
first_action: "2017-05-30T04:00:00+00:00"
last_action: "2018-02-14T05:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/8fbfa709-daa3-408b-9dfb-63e9111a796c"
source_url: "http://legislature.mi.gov/doc.aspx?2017-SB-0409"
source_hash: "75128cc6906aaba788348911fce64384f2a22ecad73a43bd78ffa200dce2b6d5"
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 409 (2017-2018) — Natural resources; Great Lakes; use of certain bottomlands for private harbors; provide for. Amends secs. 32505 & 32511 of 1994 PA 451 (MCL 324.32505 & 324.32511).

## 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-0409.htm)
2. **As Passed by the Senate** (committee substitute) — [source](http://www.legislature.mi.gov/documents/2017-2018/billengrossed/Senate/htm/2017-SEBS-0409.htm)
3. **Public Act** (committee substitute) — [source](http://www.legislature.mi.gov/documents/2017-2018/publicact/htm/2018-PA-0018.htm)
4. **Senate Concurred Bill** (committee substitute) — [source](http://www.legislature.mi.gov/documents/2017-2018/billconcurred/Senate/htm/2017-SCB-0409.htm)
5. **Senate Introduced Bill** (committee substitute) — [source](http://www.legislature.mi.gov/documents/2017-2018/billintroduced/Senate/htm/2017-SIB-0409.htm)

## Votes

- PASSED ROLL CALL # 328 YEAS 26 NAYS 12 EXCUSED 0 NOT VOTING 0 — **26–12** (pass) · upper
- HOUSE AMENDMENT(S) CONCURRED IN AS AMENDED ROLL CALL # 17 YEAS 23 NAYS 14 EXCUSED 1 NOT VOTING 0 — **23–14** (pass) · upper
- passed; given immediate effect Roll Call # 15 Yeas 59 Nays 48 — **59–48** (pass) · lower

## Sponsors

- 38 — cosponsor (person)
- Tom Casperson — cosponsor (person)

## Timeline

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

- **2017-05-30T04:00:00+00:00** INTRODUCED BY SENATOR THOMAS CASPERSON `introduction`
- **2017-05-30T04:00:00+00:00** REFERRED TO COMMITTEE ON NATURAL RESOURCES `referral-committee`
- **2017-06-15T04:00:00+00:00** REPORTED FAVORABLY WITHOUT AMENDMENT `committee-passage`
- **2017-06-15T04:00:00+00:00** COMMITTEE RECOMMENDED IMMEDIATE EFFECT
- **2017-06-15T04:00:00+00:00** REFERRED TO COMMITTEE OF THE WHOLE `referral-committee`
- **2017-06-28T04:00:00+00:00** REPORTED BY COMMITTEE OF THE WHOLE FAVORABLY WITHOUT AMENDMENT(S) `committee-passage`
- **2017-06-28T04:00:00+00:00** PLACED ON ORDER OF THIRD READING
- **2017-09-06T04:00:00+00:00** AMENDMENT(S) DEFEATED `amendment-failure`
- **2017-09-06T04:00:00+00:00** PASSED ROLL CALL # 328 YEAS 26 NAYS 12 EXCUSED 0 NOT VOTING 0 `passage`
- **2017-09-06T04:00:00+00:00** received on 09/06/2017 `introduction`
- **2017-09-06T04:00:00+00:00** read a first time `reading-1`
- **2017-09-06T04:00:00+00:00** referred to Committee on Natural Resources `referral-committee`
- **2017-12-06T05:00:00+00:00** reported with recommendation without amendment `committee-passage`
- **2017-12-06T05:00:00+00:00** referred to second reading
- **2018-01-16T05:00:00+00:00** read a second time `reading-2`
- **2018-01-16T05:00:00+00:00** placed on third reading
- **2018-01-18T05:00:00+00:00** read a third time `reading-3`
- **2018-01-18T05:00:00+00:00** amended
- **2018-01-18T05:00:00+00:00** passed; given immediate effect Roll Call # 15 Yeas 59 Nays 48 `passage`
- **2018-01-18T05:00:00+00:00** inserted full title
- **2018-01-18T05:00:00+00:00** returned to Senate
- **2018-01-23T05:00:00+00:00** HOUSE AMENDMENT(S) CONCURRED IN AS AMENDED ROLL CALL # 17 YEAS 23 NAYS 14 EXCUSED 1 NOT VOTING 0
- **2018-01-23T05:00:00+00:00** GIVEN IMMEDIATE EFFECT
- **2018-01-23T05:00:00+00:00** FULL TITLE AGREED TO
- **2018-01-23T05:00:00+00:00** ORDERED ENROLLED
- **2018-02-06T05:00:00+00:00** PRESENTED TO GOVERNOR 2/1/2018 @ 1:17 PM `executive-receipt`
- **2018-02-14T05:00:00+00:00** APPROVED BY GOVERNOR 2/12/2018 @ 11:00 AM `executive-signature`
- **2018-02-14T05:00:00+00:00** FILED WITH SECRETARY OF STATE 2/13/2018 @ 10:04 AM
- **2018-02-14T05:00:00+00:00** ASSIGNED PA 0018'18 WITH IMMEDIATE EFFECT

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/8fbfa709-daa3-408b-9dfb-63e9111a796c`. Confidence: reported (aggregated from official Michigan legislature records).