Livestock Biosecurity Requirements in Minnesota: What Every Producer Needs to Know

Minnesota’s livestock industry supports billions of dollars in annual farm receipts and anchors the economies of dozens of rural counties — but that agricultural strength depends on one foundational practice: biosecurity. A single disease outbreak can lock down your farm, suspend animal movement, and erase a season’s worth of revenue in days.

Whether you run a commercial swine operation, a cattle ranch, a poultry flock, or a small hobby farm, understanding what Minnesota law requires — and what regulators strongly recommend — is essential to staying compliant and keeping your animals healthy. This guide walks you through every major category of livestock biosecurity requirements in Minnesota so you know exactly where you stand.

What Is Livestock Biosecurity and Why It Matters in Minnesota

Biosecurity is a process for protecting farms and livestock from infectious diseases. Farmers can create and carry out biosecurity plans and practices specific to their farm and animals, because diseases can be introduced from a variety of sources, and a good plan addresses all known routes of disease transmission from agents like viruses, bacteria, fungi, and parasites.

The intent of a biosecurity plan is to outline what measures will be taken to keep a strong “clean” and “dirty” line between the farm and the external environment. Biosecurity procedures can involve plants, animals, people, equipment, air, water, food, and waste.

Minnesota faces specific disease pressures that make biosecurity more than just good practice. Turkey production’s geographic concentration in Kandiyohi and Stearns counties creates a biosecurity vulnerability: when Highly Pathogenic Avian Influenza (HPAI) circulates in migratory waterfowl along the Mississippi Flyway, those counties face disproportionate exposure. Depopulation of a single large flock can exceed one million birds.

Foreign Animal Disease outbreaks can lead to quarantined farms, preventing non-permitted animal movement. Having a plan in place to recognize and respond to a disease will help your farm maintain operations during an outbreak. The stakes are not theoretical — they directly affect your ability to sell, move, and profit from your animals.

Premises Registration and Identification Requirements in Minnesota

One of the most fundamental steps you can take as a Minnesota livestock producer is registering your premises to obtain an official Premise Identification Number (PIN). All animal production or processing facilities in Minnesota are highly encouraged to register their site to obtain an official Premise Identification Number (PIN). The PIN is a location-based official identification number for each animal production site or animal product processing facility, and this permanent number does not change, even if the premises is sold.

When an emergency occurs, animal and product movement may be restricted by location to control a disease or outbreak. The USDA requires farms to have a PIN for animal disease traceability and emergency response in the event of a Foreign Animal Disease (FAD) such as African swine fever, avian influenza, or foot and mouth disease.

The consequences of not having a PIN during a disease event are serious. Livestock and product would not be allowed to leave the farm or plant without a government-issued permit, and these permits can only be issued to farms with PIN numbers. By having a PIN for your farm or plant, you can ensure you have the most basic piece in place to allow you to move your milk, animals, or other products off your premises in an emergency. Producers who wait are likely to see significant delays or may find themselves unable to move milk, animals, or other products off their farm at all.

Beyond premises registration, individual animal identification is also a core requirement. Animals should be individually identified so you can keep proper health records. If you have several employees working on your farm, individual animal identification improves the ability for you and your employees to talk about health status, treatment needs, antibiotic withdrawal, and other individual needs.

For farmed cervidae specifically, Minnesota law sets strict identification standards. Farmed cervidae must be identified by means approved by the Board of Animal Health. The identification must be visible to the naked eye during daylight under normal conditions at a distance of 50 yards, and newborn animals must be identified before December 31 of the year in which the animal is born or before movement from the premises, whichever occurs first.

For poultry sold at community sales, all poultry and ratites, except baby poultry, must be individually identified with a leg or wing band with a number on the band. The band may also include other letters such as names or initials. These identification rules exist alongside the broader disease reporting obligations that Minnesota producers share with operators across the country.

Biosecurity Plan Requirements in Minnesota

Biosecurity plans are the first step in preparing your farm to reduce the risk of introducing animal disease. While a written biosecurity plan is strongly recommended for all producers, certain operations face more formal requirements tied directly to market access and indemnity eligibility.

Secure Food Supply Plans increase the likelihood that disease control measures would only minimally affect your farm and allow normal business to continue during a foreign animal disease outbreak. These plans are not just a best practice — they are a prerequisite for keeping markets open during a crisis. Secure Food Supply Plans help prove your farm’s disease status, keeping markets open and livestock moving.

Non-commercial, hobby, or backyard farms may not require a Secure Food Supply plan but should develop and follow a strong biosecurity plan to limit exposure of animals to disease. In other words, the scale of your operation determines the formality of what is required, but no producer is exempt from the underlying obligation to manage disease risk.

The MDA recommends following five core steps to build your biosecurity plan:

1. Map your site showing restricted access points and your Line of Separation (LOS).
2. Physically mark the LOS clearly using signs, fences, and gates.
3. Control access to your farm by limiting entry to essential personnel only.
4. Write procedures for people, vehicles, and supplies entering and exiting.
5. Plan for feed and water supply emergencies and scenarios that limit movement.

For commercial poultry producers, biosecurity plan requirements are especially formalized. To qualify for indemnity, producers must have a Biosecurity Plan in place addressing all components of the 14 biosecurity principles, including an audit by the Official State Agency (OSA). The Minnesota Board of Animal Health is the OSA for Minnesota and will conduct an audit of these biosecurity plans to verify they conform to the NPIP Biosecurity Principles.

Although these Biosecurity Principles are applicable to all types and sizes of poultry production, the auditing portion will only be conducted on commercial poultry operations. Any producer can opt out of the audit; however, they may not be eligible for indemnity in the event influenza is identified on their farm.

If your farm raises multiple species, you should write biosecurity plans for each commodity. Species-specific plan templates have been developed through industry-government collaborations. The Secure Beef Supply Plan is a collaboration among the beef industry, state and federal government agencies, Iowa State University, and Kansas State University. The Secure Milk Supply Plan is a collaboration among the dairy industry, state and federal government agencies, Iowa State University, University of California Davis, and the University of Minnesota. The Secure Pork Supply Plan is a collaboration among the swine industry, state and federal government agencies, Iowa State University, and the University of Minnesota.

For swine producers, additional federal reporting obligations apply. The USDA issued a federal order requiring producers, veterinarians, and diagnostic laboratories to report herds positive with swine enteric coronavirus diseases (SECD), specifically porcine epidemic diarrhea virus (PEDv) and porcine deltacoronavirus (PDCoV). The federal order also requires producers to work with a veterinarian to develop and follow a herd management plan to minimize the spread and impact of the disease. You can compare how Minnesota’s approach aligns with livestock disease reporting in Colorado and livestock disease reporting in Illinois for a broader picture of regional compliance.

Animal Isolation and Movement Control Requirements in Minnesota

Controlling how animals enter and move around your operation is one of the most direct ways to prevent disease introduction. Minnesota regulations and guidance are clear on this point.

New animals should not be introduced directly into the herd. Instead, all new arrivals should be isolated in a different barn or pasture for several weeks until they can be inspected and proven to have cleared any illnesses. Only purchase animals from known sources and make sure they appear healthy and have been inspected by a veterinarian.

When returning from exhibitions or sales events, isolation is equally critical. Keep the returning or new animals separate from your herd for up to one month and look for any clinical signs of diseases they could have potentially contracted while away from your farm.

Interstate movement triggers additional requirements. If you are moving your animal interstate, or out of Minnesota, you must have your veterinarian examine the animal and write you a Certificate of Veterinary Inspection.

Minnesota also maintains strict import prohibitions for certain species. Minnesota prohibits the importation of feral swine. Swine who were feral at any point in their lifetime and whole carcasses are also prohibited from entering the state.

For garbage feeding — a practice used primarily on hog farms — a license is required. No person shall feed garbage to livestock or poultry without first securing a license from the board, and no person shall transport garbage over the public highways of this state for the purpose of feeding it to livestock or poultry unless the person has a license. A license must be renewed on or before the first day of July each year. Producers interested in how neighboring states handle animal movement compliance may also want to review livestock trailer requirements in Wisconsin and livestock trailer requirements in Pennsylvania.

Visitor, Vehicle, and Equipment Sanitation Rules in Minnesota

People, vehicles, and equipment are among the most common vectors for disease transmission between farms. Minnesota’s biosecurity framework places significant emphasis on controlling these entry points.

Clearly identify and maintain the farm perimeter and entrances so you can control access to your farm. Gated entrances provide the best way to physically stop vehicles before they enter the areas where you keep your livestock.

The physical layout of your farm matters. The Perimeter Buffer Area (PBA) should include all areas related to livestock production. The PBA should be separate from other operations that are unrelated to the day-to-day care of the animals. Things like the barns, feed bins, shower facilities, and storage can all be inside the Perimeter Buffer Area. The biosecurity plan should address how workers and visitors enter and exit the PBA.

A Line of Separation (LOS) is the physical barrier of a building where livestock are kept, including barriers at entry points like doorways. Outdoor livestock should also have a LOS where workers use barriers like fences or pens. The LOS should be specific for each barn and separate building.

Clothing and footwear protocols are a critical part of visitor and worker management. Use dedicated clothing and separate boots when crossing each line of separation and wash and disinfect them regularly. Require a waiting period of 24 to 48 hours between livestock premises visits for your employees and also your veterinarian.

Recordkeeping for visitors is also expected. Keep a log of traffic visiting your farm, including businesses and individuals; consider asking individuals for information on their recent contact with livestock. Maintain required records for animal movements both onto and off of your farm.

Vehicles deserve particular attention. Remember, vehicles can carry disease. Before you drive down the road, consider where you are going. If you will be heading to the fair, another farm, or a live bird market, be sure your vehicle is clean and free of dirt, manure, and other organic material.

Employee training is not optional — it is a core component of an effective plan. Educate yourself and train your employees to recognize and report diseases. Train employees and require them to follow your biosecurity plan. Make sure employees have a way to alert you or your veterinarian of a sick animal or suspected disease.

Wildlife and Pest Control Obligations in Minnesota

Wild animals and insects represent a persistent and often underestimated disease pathway onto your farm. Minnesota’s biosecurity guidance treats wildlife and pest control as a non-negotiable component of any sound farm plan.

Prevent contact between wildlife and your healthy livestock. You should also try to control insects to the best of your ability because ticks, flies, and mosquitoes can transmit disease.

For poultry producers, the threat from wild birds is especially acute. Eliminate opportunities for your birds to interact with wild birds. Wild waterfowl are carriers of disease, like HPAI. The best way to avoid diseases that wildlife carry is to keep domestic animals separated from the wild.

Waterfowl have the ability to spread disease to poultry through droppings and nose, mouth, and eye secretions. As a result, poultry producers have taken additional steps to keep their birds healthy by increasing biosecurity. Among other measures, one of the most effective ways to protect poultry is by making sure they are separated from wild birds.

Cross-premises exposure is another wildlife-related risk that applies beyond poultry. If you have birds at home, do not visit another farm, home, or facility that also has birds. Poultry producers should also avoid swine and cattle premises because of the risk of potential influenza transmission.

Feral swine represent a distinct wildlife threat to domestic hog operations. Feral pigs carry dangerous diseases, which have been eradicated from domestic livestock through significant effort. Those diseases pose a significant threat to commercial hogs and other domestic animals. As noted above, Minnesota prohibits the importation of feral swine entirely.

If your operation includes livestock guardian animals, you may also want to review facts about livestock guardian dogs to understand how working dogs interact with biosecurity boundaries and wildlife deterrence on the farm.

Dead Animal Disposal Requirements in Minnesota

Proper carcass disposal is both a legal obligation and a critical biosecurity measure in Minnesota. Proper disposal of domestic animal carcasses is an important part of preventing the potential spread of disease and protecting air and water quality. Unless slaughtered for human consumption, animals that die need to be disposed of within 72 hours.

This 72-hour deadline is codified in Minnesota rules. A person owning or controlling a domestic animal that has died or been killed other than by being slaughtered for human or animal consumption must dispose of the carcass within 72 hours unless other arrangements for disposal have been approved by the board.

Minnesota law under Minn. Stat. § 35.82 establishes the approved disposal methods. Every person owning or controlling any domestic animal that has died or been killed otherwise than by being slaughtered for human or animal consumption shall, as soon as reasonably possible, bury the carcass at a depth adequate to prevent scavenging by other animals in the ground, or thoroughly burn it, or dispose of it by another method approved by the board as being effective for the protection of public health and the control of livestock diseases.

Legal methods of disposal apply to poultry, swine, cattle, horses, sheep, goats, and farmed cervids. The following table summarizes your options:

For burial specifically, livestock carcasses must be buried five feet above the seasonal high-water table, so if you hit water, you will need to find another location to bury. Burial in sandy areas or areas within 10 feet of bedrock should be avoided.

Rendering is a commonly used option, but it comes with its own compliance requirements. Vehicles that haul livestock carcasses for rendering services need to be inspected and permitted by the Board, unless the vehicle belongs to the owner of the animal. To prevent disease spread and keep roads clean, livestock carcasses and animal parts are transported in leak-proof vehicles or containers and covered.

The Minnesota Board of Animal Health is also required by statute to develop and distribute best management practices for dead animal disposal. The board shall develop best management practices for dead animal disposal and the Pollution Control Agency feedlot program shall distribute them to livestock producers in the state. You can contact the Board of Animal Health’s carcass disposal team for site-specific guidance.

Staying Compliant: Next Steps for Minnesota Livestock Producers

Meeting Minnesota’s livestock biosecurity requirements is not a one-time task — it is an ongoing operational commitment. The regulatory framework is administered by both the Minnesota Board of Animal Health and the Minnesota Department of Agriculture, and requirements span everything from premises registration to carcass disposal timelines.

Here is a practical checklist to confirm you have covered the core requirements:

• Register your premises with the Board of Animal Health and obtain your free PIN at bah.state.mn.us
• Develop a written biosecurity plan that maps your Line of Separation, Perimeter Buffer Area, and access control procedures
• If you operate a commercial poultry facility, complete your NPIP Biosecurity Audit to preserve indemnity eligibility
• Isolate all new or returning animals for up to one month before reintroducing them to your herd or flock
• Maintain a visitor and vehicle log and enforce 24-to-48-hour waiting periods between premises visits for employees and your veterinarian
• Implement wildlife exclusion measures, especially for poultry operations near waterfowl flyways
• Dispose of all livestock carcasses within the 72-hour legal deadline using a Board-approved method
• If you raise multiple commercial species, develop a separate biosecurity plan for each commodity

Protecting your animals protects your family, your farm, and the future of Minnesota agriculture. Strong biosecurity helps keep your animals healthy, your business stable, and your community safe. For questions about compliance, contact the Minnesota Board of Animal Health at 651-296-2942 or the MDA livestock team at 651-201-6000.

If you operate in multiple states or want to compare Minnesota’s framework with other jurisdictions, explore our guides on livestock disease reporting in California and brand inspection requirements in Washington for additional context on regional livestock compliance obligations.