Michigan Floodplain Regulatory Authority — NREPA Part 31 (MI)
Tracked preemption from the Michigan overlay bundle.
Overview
← All state preemptionsMichigan overlay roll-upMichigan zoning wikiMichigan building codesFederal overlaysGlossaryFederal-conflict: Yes
Effective
1995-03-30
Sunset
—
Authority
state
Scope
state:MI
Other Michigan preemptions
Michigan Recodified Tax Increment Financing Act — 2018 PA 57Detroit Transit-Oriented Corridor — People Mover + QLINEMichigan Regulation and Taxation of Marihuana Act (MRTMA) — Local Opt-Out & Establishment SitingDetroit Land Bank Authority — Tax-Foreclosed Property Disposition & Blight ProgramsMichigan Zoning Enabling Act (MZEA) — Unified Zoning AuthorityMichigan MCL 125.3207 — Moratoria Duration & Renewal LimitsMichigan Renaissance Zone Act — 1996 PA 376Michigan Brownfield Redevelopment Financing Act — 1996 PA 381
Trigger predicate
When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.
parcel.in_designated_floodplain == TruePreempted fields
2 fields on the base district schema are rewritten when the trigger fires.
| Field | Op | Value | Note |
|---|---|---|---|
review_type | require | EGLE_Part_31_floodplain_permit | Construction, fill, excavation, or improvement within the 100-year floodplain of a stream draining ≥2 sq mi requires an EGLE Part 31 floodplain permit in addition to local zoning approval and NFIP/FEMA compliance. |
base_districts[*].min_finished_floor_elevation_ft | floor_at | base_flood_elevation_plus_freeboard |
Citation
Authority source
NREPA Part 31 (Water Resources Protection) — MCL 324.3101 et seq., floodplain authority at §324.3104
Research notes
Coordinated with FEMA National Flood Insurance Program (NFIP). EGLE administers state-level floodplain permitting; local communities participating in NFIP also enforce FEMA-mapped Special Flood Hazard Areas. Federal conflict check enabled for NFIP coordination.