Livestock Biosecurity Requirements in Michigan Every Producer Must Know

Running a livestock operation in Michigan means staying ahead of disease threats that can spread silently across herds, counties, and state lines before you ever notice a sick animal. Biosecurity can be defined as those practices designed to prevent the introduction of a harmful agent into a defined setting — in livestock operations, this means preventing harmful agents such as viruses, bacteria, parasites, or toxins from coming in contact with livestock.

Michigan’s regulatory framework, led by the Michigan Department of Agriculture and Rural Development (MDARD), layers state law, Generally Accepted Agricultural and Management Practices (GAAMPs), and federal traceability rules into a system that touches every producer in the state. Understanding what is required — and what is strongly advised — helps you protect your animals, preserve your indemnification eligibility, and keep Michigan agriculture competitive.

This guide walks you through each major category of livestock biosecurity requirements in Michigan, from premises registration and animal identification to dead animal disposal, so you know exactly where your obligations stand.

What Is Livestock Biosecurity and Why It Matters in Michigan

Farm biosecurity is a series of management practices and measures designed to minimize or prevent the entry and spread of pests and diseases onto a farm. For Michigan producers, that definition carries real financial weight. Highly visible livestock disease outbreaks — such as foot-and-mouth disease in the United Kingdom — have focused attention on biosecurity, but many diseases commonly found in the United States can also be spread from farm to farm and result in significant animal sickness, death, and economic losses.

With recent outbreaks of Highly Pathogenic Avian Influenza (HPAI), cattle farmers should have a heightened awareness of symptomatic cattle and continue to engage in biosecurity practices on the farm. Michigan has seen confirmed HPAI cases in multiple counties, and bovine tuberculosis (TB) remains an active concern in parts of the state.

Producers should develop and implement a biosecurity plan and complete a regular review of their farm’s biosecurity practices that focus both on cattle and human health and safety. Proactive implementation of biosecurity measures could reduce the risk of a disease outbreak in your herd, along with its negative economic impact, and protect animal agriculture in the state.

Part of the growing awareness around biosecurity is due to diseases such as highly pathogenic avian influenza in poultry and porcine epidemic diarrhea virus in swine. Key components include restricting animal access to people, wildlife, and other domestic animals that could potentially be carrying disease. You can also learn more about how disease reporting obligations connect to your biosecurity duties by reviewing livestock disease reporting requirements in Michigan.

Premises Registration and Identification Requirements in Michigan

Premises registration is the foundation of Michigan’s animal traceability system. When purchasing official animal ID, you must have the premises identification number (PIN) where the animals are housed. To register your premises or to request your existing PIN, call MDARD’s Atlanta Field Office at 888-565-8626.

MDARD premises registration is encouraged for biosecurity purposes, and it is a practical prerequisite for complying with official animal identification rules. MDARD uses USAHERDS as the main traceability system, and it is linked to USDA’s Premises Management system for issuance of federal premises identification numbers (PINs).

For cattle and bison specifically, identification requirements go beyond registration. All bison and cattle, including animals moving to slaughter, must be tagged with official radio frequency identification (RFID) ear tags before they leave a Michigan premises unless they are moved to a Michigan approved tagging site. Official RFID ear tags applied to animals of U.S. origin must depict the U.S. Route Shield, and those applied on or after March 11, 2015, must have a 15-digit number that begins with 840.

Under Michigan law, “livestock” includes aquaculture species, bison, cattle, equine, farmed deer, goats, ostriches and other ratites, poultry, sheep, and swine. Each species category has its own movement and identification rules, so confirm the specific requirements for your operation type with MDARD. Producers moving animals across state lines should also review livestock trailer requirements in Wisconsin and livestock trailer requirements in Pennsylvania if those are common destination states.

Biosecurity Plan Requirements in Michigan

Michigan does not mandate a single universal biosecurity plan template for all producers, but several regulatory pathways make having a written plan effectively required or strongly incentivized. Biosecurity protocols should be part of every farm’s management plan and should include protocols for farm visitors.

For cattle herds in Michigan’s Modified Accredited Zone (MAZ) — the area with elevated bovine TB risk — a formal written plan is tied directly to movement rights. The Wildlife Risk Mitigation (WRM) Project helps producers create a biosecurity plan for their farms in order to reduce the risk of their cattle becoming infected with bovine TB. The WRM Project allows producers to actively participate in choosing the best method to meet project standards, and field staff will help each farm develop unique ways to mitigate the risk of wildlife interaction.

Cattle from herds located in the Modified Accredited Zone that are not in the Enhanced Wildlife Biosecurity area and cattle herds located in Presque Isle County cannot move to any location other than directly to slaughter without a verified WRM plan in place. This is one of the most concrete examples of a biosecurity plan functioning as a legal movement prerequisite in Michigan.

Beyond the MAZ, MDARD’s Michigan Agriculture Environmental Assurance Program (MAEAP) provides a voluntary framework for biosecurity and environmental stewardship. Verification in the Livestock System recognizes each farm’s commitment to practicing good stewardship of Michigan’s land and water. The program focuses on environmental issues related to livestock activities, including animal production activities, manure management practices, and practices that protect water and prevent erosion. This category applies to all Michigan livestock farms, regardless of the animals raised or their size.

Example biosecurity plans, practices, and resources for cattle can be found by visiting the Secure Milk Supply, Secure Beef Supply, or Beef Quality Assurance websites. These resources can help you develop your own farm biosecurity plan and include information on proper cleaning and disinfection processes which have the potential to help stop the spread of zoonotic diseases.

Animal Isolation and Movement Control Requirements in Michigan

Controlling how and when animals enter your operation is one of the highest-impact biosecurity actions you can take. Michigan guidance and regulatory standards consistently point to isolation as a non-negotiable step when introducing new animals.

When introducing new animals to the dairy, isolate them for two weeks and monitor their health before mixing them with the existing herd. This two-week minimum isolation period is a standard endorsed by both MSU Extension and MDARD for all cattle operations and is broadly applicable to other livestock species as well.

Delay or stop incoming or returning animals from herds with unknown or suspect health status. Isolate all animals that are new or returning to your farm. Monitor the health of your animals daily. These steps form the core of what MDARD describes as active biosecurity management.

For interstate movement, Michigan enforces both state and federal requirements. Interstate movements of lactating dairy cattle must follow federal requirements. Additionally, state-specific guidance for moving cattle must be followed. Clinical lactating dairy cattle are ineligible for interstate movement or movement to slaughter.

Laboratories and state veterinarians must report positive Influenza A nucleic acid detection diagnostic results in livestock to USDA APHIS. This reporting obligation means your isolation and movement records can become part of a traceback investigation, making accurate record-keeping an important compliance tool. If you also manage livestock in neighboring states, see livestock trailer requirements in Nevada for additional context on interstate transport compliance.

Maintain up-to-date, accurate records for animal health (e.g., vaccination, antimicrobial treatment, surgical procedures), feed delivery, and cattle transportation. These records are also relevant if you ever seek state indemnification under the Animal Industry Act.

Visitor, Vehicle, and Equipment Sanitation Rules in Michigan

People, vehicles, and equipment are among the most efficient disease vectors on any farm. A virus can easily be moved unknowingly on everything from farm equipment to shoes to delivery or service vehicles. Michigan’s regulatory guidance makes clear that sanitation obligations extend to everyone who enters your property — not just your own staff.

Requiring livestock operation visitors to have permission and conduct proper contamination protections, including clothing and disinfectants, is part of protecting and enhancing biosecurity on-site. This is not merely a best practice recommendation — it is embedded in Michigan Farm Bureau policy and reflected in MDARD guidance for all farm types.

For your own workers, MSU Extension and MDARD recommend the following sanitation standards:

• Wear clean clothes and shoes to the farm. If you had contact with other livestock, clothing and footwear should be changed before coming to the farm.
• Have dedicated footwear for the farm. All staff should leave boots and footwear used on the farm in a location indicated by the farm for safe storage.
• Practice good hygiene and wash hands frequently. Some pathogens are highly sensitive to soap and hot water; others require strong disinfectants.
• Use a new needle for each animal when administering injectables. Use a new needle and syringe for each animal when drawing blood.

For visitors and service providers, the standards are equally specific. Ask all visitors and service providers to employ biosecurity practices: contact visitors before they arrive at the farm — signage may be helpful — use disposable footwear or completely disinfect their footwear, utilize single-use coveralls or clean clothing that can be washed after a farm visit, and clean and disinfect equipment and tools used on other farms prior to bringing them on the farm.

MDARD asks any company, business, or organization traveling to multiple farms each day as part of their work to make sure they are implementing biosecurity measures to protect Michigan farms. If you host frequent service visits — milk haulers, AI technicians, feed delivery — develop a written visitor log and sanitation protocol that every visitor signs before entry.

For vehicle sanitation specifically, vehicles and equipment should be cleaned and disinfected before moving off the farm. This outbound requirement is just as important as inbound sanitation, especially if your animals are being transported to shows, auctions, or other farms.

Wildlife and Pest Control Obligations in Michigan

Michigan is one of the few states in the nation where wildlife-to-livestock disease transmission is a formal regulatory concern backed by specific program requirements. The primary driver is bovine tuberculosis, which can be transmitted from white-tailed deer to cattle in the northern Lower Peninsula.

Herd owners in the Enhanced Wildlife Biosecurity (EWB) Area work with specialized staff to evaluate their farm’s specific risks and are provided a plan of action to mitigate the risk. Some risks may be addressed by changing the farm’s management practices, while in other cases the pressure from wildlife necessitates an investment in physical improvements — primarily fencing.

Any commercial producer in the EWB area must also participate in the Targeted Deer Removal Program (TDR). This is a mandatory obligation, not an optional one, for operations located in the designated EWB zone. Failure to participate can affect your herd’s movement status and indemnification eligibility.

Beyond the TB-specific programs, general wildlife and pest exclusion is a statewide biosecurity expectation for all producers:

• Keep wild birds away from livestock and their feed and water sources — a critical step given ongoing HPAI risk.
• Secure feed storage in wildlife-proof containers or structures to prevent contamination from rodents, birds, and deer.
• Flies, rodents, pests, vermin, and other scavengers or predators must be controlled so as not to disrupt compost or constitute a risk or health hazard to human or animal populations. A biofilter, or layer of fresh bulking agent placed over a pile after each addition or aeration, reduces odors and discourages pests.

If you use livestock guardian animals as part of your pest and predator management strategy, understanding their role in your overall biosecurity plan is important. You can learn more about their capabilities and limitations in this overview of facts about livestock guardian dogs. Producers in Michigan should also stay current on rabies vaccine requirements in Michigan, as wildlife contact increases zoonotic disease risk for both guardian animals and farm workers.

Dead Animal Disposal Requirements in Michigan

Proper carcass disposal is both a biosecurity measure and a legal obligation in Michigan. The Bodies of Dead Animals Act (BODA; Act 239 of 1982, as amended) regulates the management of dead animals in Michigan. BODA establishes requirements for the proper disposal — including burial and composting — of dead animals.

The penalties for non-compliance are significant. A person violating BODA is guilty of a misdemeanor punishable by a minimum fine of $300 or imprisonment for a minimum of 30 days, or both. Three or more convictions for violating BODA is a felony punishable by imprisonment for up to one year or a fine of up to $2,000, or both.

Under BODA, there are currently six alternatives for dead animal disposal in Michigan, and MDARD may require an alternative disposal method, at the owner’s expense, if all of the current disposition methods for dead animals inadequately address potential toxicological contamination threats to human or animal health, or to the environment.

The six approved disposal methods under BODA include burial, composting, incineration, rendering, transfer to a licensed dead animal dealer, and land application under specific conditions. Each method comes with its own technical standards:

• Burial: Burial sites must have no contact with bodies of water — both surface and ground — and must be at least 200 feet from wells.
• Incineration: Burning must not cause a public nuisance. Incinerators must be permitted by the Air Quality Division of MDEQ. Residues from the burning process must be buried, land-applied at agronomic rates, or properly disposed of in an MDEQ-licensed landfill.
• Composting: BODA requires that each composting batch undergoes a minimum of three heat cycles over 130°F before final utilization as “finished” compost.
• Transport: Vehicles and containers cannot leak or spill, and must be covered so that public viewing of the dead animals is not possible.

A comprehensive document named the Michigan Animal Tissue Compost Operational Standard (MATCOS) was written to explain in detail the composting options provided to farmers in BODA, and these may be found on the MSU website. If your operation generates significant mortality volume, composting is often the most practical on-farm option.

For operations that use a licensed dead animal dealer or renderer, you will need to obtain a Transporting and Disposal of Dead Animals License if you will be operating a rendering plant, an animal food manufacturing plant, a transfer station for dead animals, or obtaining and transporting dead animals. Verify that any third-party service you use holds a current MDARD license before contracting with them.

Staying Compliant with Michigan Livestock Biosecurity Requirements

Michigan’s livestock biosecurity framework is built across multiple statutes, MDARD programs, and federal overlays. The core obligations — premises registration, official animal identification, isolation of incoming animals, visitor sanitation, wildlife exclusion, and lawful carcass disposal — apply in some form to virtually every livestock producer in the state.

The most important step you can take is to move from informal habits to a documented biosecurity plan. Farms should complete a thorough review of their biosecurity practices that focus both on cattle and human health and safety. Proactive implementation of biosecurity measures could reduce the negative economic impact of a disease outbreak in your herd.

Work with your herd veterinarian, MSU Extension educators, and MDARD field staff to assess your current protocols against the requirements outlined here. Producers in other states with active livestock operations can also review how neighboring states approach disease reporting — see livestock disease reporting in Florida and livestock disease reporting in California for comparison. For brand inspection and movement documentation in western states, brand inspection requirements in Washington provide a useful reference point.

Biosecurity is not a one-time checklist — it is an ongoing management commitment. Reviewing your plan annually, training new employees on protocols, and staying current with MDARD advisories are the practical habits that keep your operation protected and compliant year after year.