Michigan Wetlands Protection Act — NREPA Part 303 (MI)

Tracked preemption from the Michigan overlay bundle.

Overview

Effective
1995-03-30
Sunset
Authority
state
Scope
state:MI

Trigger predicate

When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.

parcel.has_regulated_wetlands == True

Preempted fields

2 fields on the base district schema are rewritten when the trigger fires.

FieldOpValueNote
review_typerequireEGLE_Part_303_wetland_permitAny deposit/discharge of fill, dredging, drainage, or construction in a regulated wetland (≥5 acres, or any size if contiguous to an inland lake/stream/Great Lake, or any size if EGLE determines essential resource) requires an EGLE Part 303 permit.
base_districts[*].allowed_usesrestrictsubject_to_EGLE_wetland_avoidance_minimization_mitigation_sequencing

Citation

Authority source
NREPA Part 303 — MCL 324.30301 et seq. (consolidating 1979 PA 203 Goemaere-Anderson Wetland Protection Act)
https://www.legislature.mi.gov/(S(0))/mileg.aspx?page=getObject&objectName=mcl-451-1994-III-1-WATER-RESOURCES-MANAGEMENT-303

Research notes

State-administered overlay; MI is one of three states (with NJ and FL partially) operating an EPA-approved §404 assumed program for wetland permitting. Local ordinances may regulate wetlands ≥2 acres but must use the Part 303 definition framework. Per-parcel geographic predicate keyed to EGLE National Wetland Inventory and Michigan Wetland Inventory layers.