HB 5536 Michigan House · 2025-2026 Regular Session

Natural resources: wetlands; definition of wetland; update. Amends secs. 30301, 30307 & 30308 of 1994 PA 451 (MCL 324.30301 et seq.).

HB 5536 updates Michigan's legal definition of "wetland" under the Natural Resources and Environmental Protection Act. It expands the definition to include features that are contiguous to the Great Lakes, over 5 acres in size, contain endangered species, or are designated as rare wetland types (like Great Lakes marshes or coastal fens). This change directly affects landowners, developers, and conservation groups by altering which areas require environmental review or mitigation for development. The bill also clarifies terms like "altered wetland" and "voluntary restoration projects" to guide land management practices.
Bill status passed both 4 of 5 stages cleared
Introduction
Feb 2026
Committee Review
Jun 2026
House Passage
Jun 2026
Senate Passage
Jun 2026
Governor
Introduced Feb 19, 2026 Last action Jun 10, 2026
Maddy AI version diff · 1 comparison

What changed between versions

House Introduced Bill As Passed by the House · 6 edits · Jun 4, 2026
MODERATE
This bill updates the Michigan Natural Resources and Environmental Protection Act to modernize wetland definitions and streamline local government permitting. It adds new definitions for specific wetland types and alters the criteria for what constitutes a 'wetland' to include proximity to Great Lakes and inland water bodies. The changes also clarify how local units of government can regulate wetlands and establish clearer timelines for permit reviews.
Scope change
The bill expands the scope of wetland protection by redefining 'wetland' to include areas contiguous to the Great Lakes and inland lakes/ponds, in addition to waters of the United States. It also clarifies the relationship between state and local wetland ordinances.
DEFINITION

Added a new definition for 'Exceptional wetland' to identify areas essential for natural resources that require preservation plans.

Modified the definition of 'wetland' to include areas contiguous to the Great Lakes, inland lakes, or ponds, and expanded the list of 'rare and imperiled wetlands' to include 17 specific types.

Added new definitions for 'Altered or degraded wetland', 'Former wetland', 'Net increase in wetland functions and services', and 'Voluntary wetland restoration project' to clarify mitigation and restoration standards.

REQUIREMENT

Modified permit hearing requirements to allow the department to hold hearings within 60 days and clarified that permits are considered approved if the department fails to act within the statutory timeframe.

Modified local government ordinance requirements to ensure consistency with state definitions and established specific timelines for local permit reviews (90 days for local units, 45 days for recommendations).

Added a requirement for local governments to notify property owners when inventory maps are created or amended, informing them that their property may be designated as a wetland.

Floor votes · House Jun 4, 2026

How they voted

This bill passed the Senate by voice vote (no roll call recorded).
Full legislative history

Actions timeline

Total actions
15
Key actions
5
Committee
5
Jun 10, 2026
Committee
REFERRED TO COMMITTEE ON NATURAL RESOURCES AND AGRICULTURE
upper
Jun 10, 2026
Upper · Passed
PASSED BY HOUSE WITH IMMEDIATE EFFECT
upper
Jun 4, 2026
Lower · Passed
passed; given immediate effect Roll Call #182 Yeas 57 Nays 51 Excused 0 Not Voting 2
lower
May 21, 2026
Committee
referred to second reading
lower
May 21, 2026
Lower · Passed
reported with recommendation without amendment
lower
Apr 29, 2026
Lower · Passed
recommendation concurred in
lower
Apr 29, 2026
Lower · Passed
reported with recommendation for referral to Committee on Rules
lower
Feb 19, 2026
Committee
referred to Committee on Natural Resources and Tourism
lower
Feb 19, 2026
Introduced
introduced by Representative Rep. David Martin
lower
1 primary · 16 co-sponsors

Sponsors