Zoning › State preemptions › Wisconsin

Wisconsin Livestock Facility Siting — Wis. Stat. § 93.90 + ATCP 51 (CAFO preemption) (WI)

Tracked preemption from the Wisconsin overlay bundle.

Overview

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Effective
2006-05-01
Sunset
—
Authority
state
Scope
state:WI
Other Wisconsin preemptions
Wisconsin Nonmetallic Mining (Frac Sand) Reclamation — Wis. Stat. Ch. 295 + NR 135Lower Wisconsin State Riverway — Wis. Stat. § 30.40 et seq.Wisconsin Local Historic Preservation — Wis. Stat. § 44.44 (Certified Ordinance)Fort McCoy / Volk Field AICUZ + Military Influence Area — federal/local coordinationWisconsin Brownfield Response / Spill Law — Wis. Stat. § 292.11 + DNR RR ProgramWisconsin Farmland Preservation — Wis. Stat. Ch. 91Wisconsin Tax Increment Law (TIF) — Wis. Stat. § 66.1105Lower St. Croix National Scenic Riverway — Wis. Stat. § 30.27

Trigger predicate

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

AND
  • project.use_type == livestock_facility_500_plus_animal_units
  • parcel.in_agricultural_zoning_district == True

Preempted fields

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

FieldOpValueNote
review_typerequireATCP_51_compliant_local_permit_or_no_permit_required§93.90 declares livestock siting a matter of statewide concern. Political subdivisions may not disapprove a livestock facility unless (a) the site lacks ag zoning, (b) the facility is prohibited in the ag district, (c) it violates locally adopted setback/drainage/building code, or (d) for ≥500 animal-unit facilities, fails ATCP 51 state standards.
conditional_use_permits_for_existing_expansionwaiveno_new_cup_for_existing_facility_expansion§93.90 — a political subdivision may not enact a CUP requirement for expansion of a pre-existing livestock facility (with narrow 20%-threshold exceptions).

Citation

Authority source
Wis. Stat. § 93.90 (Livestock Facility Siting); Wis. Admin. Code ATCP 51; Wis. Admin. Code NR 243 (WPDES CAFO permitting, ≥1,000 animal units)
https://docs.legis.wisconsin.gov/document/statutes/93.90

Research notes

Strong substantive ceiling on local CAFO regulation. ATCP 51 standards (odor, runoff, waste storage, manure management) are the floor and effectively the ceiling for local ordinances. NR 243 WPDES permits handle the ≥1,000 AU CAFO water-quality permitting (federal Clean Water Act delegated to DNR). Local zoning that purports to ban CAFOs in ag districts is preempted to the extent of conflict. Federal conflict check enabled for NPDES coordination.