Wisconsin Livestock Disposal Laws: The 24-Hour Rule Explained

Wisconsin's Dead Animal Disposal Framework: ATCP 10

Wisconsin regulates the disposal of dead farm animals under ATCP 10 — the Wisconsin Administrative Code chapter administered by the Department of Agriculture, Trade and Consumer Protection (DATCP). These rules apply to all livestock including cattle, horses, pigs, sheep, goats, llamas, alpacas, and other farm animals that die on Wisconsin farms or are found dead in Wisconsin.

The purpose of ATCP 10 is to protect public health, prevent disease spread, and safeguard Wisconsin's extensive waterways and groundwater from contamination by decomposing carcasses. Wisconsin's dairy industry and agricultural economy depend on healthy, disease-free livestock populations — and proper carcass disposal is a foundational component of that biosecurity.

The 24-Hour Rule for Roadside Carcasses

One of the most important rules Wisconsin farmers and property owners should know: carcasses found on public roadways, highway rights-of-way, or road ditches must be removed within 24 hours.

Roadside animal carcasses create multiple hazards. They are a traffic safety issue, attracting scavengers (vultures, coyotes, eagles) onto roadways and creating dangerous driving conditions. They can also be a source of disease if they have been struck by multiple vehicles or if the animal died from an infectious illness. Wisconsin's highway departments and county sheriffs take roadside carcass violations seriously.

If you find a dead animal on a road adjacent to your property, or if your animal escapes and dies on a public road, contact Brier Hill immediately at (815) 543-1891. We respond quickly to roadside situations and can coordinate with local highway departments as needed.

On-Farm Disposal: The 36–48 Hour Window

For animals that die on your farm property, Wisconsin's ATCP 10 regulations require that disposal be initiated within 36 to 48 hours, depending on the disposal method selected:

• Rendering pickup: Must be arranged within 48 hours. The carcass must be held in a manner that prevents access by scavengers and minimizes odor.
• On-site burial: Must be completed within 36 hours of death, weather permitting.
• Composting: Must be initiated within 48 hours. The animal must be covered according to composting protocol within this window.
• Incineration: Must be completed or transport initiated within 48 hours.

These time limits exist because a decomposing carcass becomes increasingly hazardous as time passes. In warm weather, decomposition accelerates dramatically, creating serious biosecurity risks for your herd and neighbors' herds. In cold Wisconsin winters, decomposition slows — but the legal clock still runs.

Wisconsin Licensed Haulers (WDA Licensed)

Just as Illinois requires IDOA licensing for dead animal haulers, Wisconsin requires that commercial transporters of dead animals hold a license from the Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP). Unlicensed transport of livestock carcasses is a violation of ATCP 10 and can expose both the hauler and the farm owner to liability.

Brier Hill Livestock Removal operates in compliance with DATCP regulations when serving our Wisconsin customers. We understand both Illinois and Wisconsin requirements and ensure that every pickup and disposal in our Wisconsin service area meets applicable state standards.

Burial Depth and Site Requirements in Wisconsin

On-site burial is permitted under Wisconsin law, but the requirements are specific:

• The burial pit must be deep enough to cover the carcass with at least 3 feet of soil on top — meaning a large horse or bull may require a pit 7–9 feet deep
• The burial site must be at least 100 feet from any well, spring, or groundwater source
• The site must be at least 100 feet from any stream, river, lake, or drainage ditch
• Burial is not permitted in wetlands, floodplains, or areas with high water tables (less than 5 feet to groundwater)
• The site must not be on land that drains directly to surface water

In many parts of Southern Wisconsin, the soil and drainage conditions make compliant burial difficult or impossible without significant effort. Clay-heavy soils, high water tables, and proximity to the many lakes and streams of the Kettle Moraine region mean that rendering or cremation transport is often the more practical and legally secure option.

Winter Considerations

Wisconsin winters present special challenges for livestock disposal. Frozen ground makes burial difficult or impossible, and carcasses can freeze solid — making them harder to handle and transport. At the same time, Wisconsin's DATCP regulations do not provide winter exemptions for the time limits. The 24-hour and 36-48 hour rules apply year-round.

In winter, rendering transport is typically the most reliable disposal method, as rendering facilities operate year-round and do not depend on ground conditions. If you're planning for contingencies, building a relationship with a licensed removal service before you need them is the best preparation.

Brier Hill Livestock Removal operates through all weather conditions including snow, ice, and extreme cold. We have the equipment and experience to handle winter pickups across Southern Wisconsin.

DATCP Enforcement

The Wisconsin DATCP actively enforces ATCP 10 requirements. Complaints from neighbors, observations by inspectors during routine farm visits, or roadside carcass reports can all trigger enforcement actions. Violations can result in civil penalties, required corrective action, and in cases of repeated non-compliance, more serious administrative consequences.

Beyond state enforcement, improperly disposed carcasses can trigger violations under Wisconsin's groundwater and surface water protection laws if contamination occurs.

Why Licensed Removal Protects Wisconsin Farmers

Using a licensed hauler creates documented proof that you took proper, timely action. If your farm is ever subject to a DATCP inspection or inquiry, having records of proper disposal protects you. It also demonstrates the kind of responsible farm stewardship that keeps Wisconsin agriculture's reputation strong.

Brier Hill serves all of Southern Wisconsin including Walworth, Rock, Kenosha, Racine, Dane, Jefferson, Waukesha, Green, Lafayette, Iowa, Grant, Sauk, and Columbia counties. Call us any time at (815) 543-1891 — we understand Wisconsin law and we'll take care of the situation promptly and correctly.