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

Pennsylvania’s livestock and poultry industries face real, ongoing disease pressure — and the rules designed to protect them are not optional suggestions. From January to April 2026, Pennsylvania recorded 30 detections of highly pathogenic avian influenza (HPAI) in both commercial and backyard flocks, impacting 8.7 million birds. That staggering figure underscores why the Commonwealth takes livestock biosecurity seriously, and why you need to understand exactly what is required of you as a producer.

Whether you raise poultry, dairy cattle, swine, or other livestock, Pennsylvania’s biosecurity framework touches nearly every aspect of your operation — from how you register your property to how you dispose of a dead animal. This guide walks you through each major requirement so you can stay compliant, protect your herd or flock, and be prepared if disease strikes nearby.

What Is Livestock Biosecurity and Why It Matters in Pennsylvania

Biosecurity is a collection of measures or management practices intended to protect animals or humans against the introduction and spread of disease or harmful biological agents. On a practical level, that means everything you do — or fail to do — on your farm either raises or lowers your risk of a disease outbreak.

Biosecurity means doing everything you can to reduce the chances of an infectious disease being carried onto your farm by people, animals, equipment, or vehicles. In Pennsylvania, this obligation is not just best practice; it is embedded in state law and enforced by the Pennsylvania Department of Agriculture (PDA).

The department has authority to regulate the keeping and handling of domestic animals to exclude or contain dangerous transmissible diseases and hazardous substances and to protect the environment, including the authority to require the establishment of an agricultural biosecurity area. That legal authority gives PDA broad power to impose requirements, issue quarantine orders, and mandate corrective action when disease risk is present.

Pennsylvania’s position as a major agricultural state — and its dense poultry and dairy industries — makes disease containment especially critical. Since the start of the HPAI outbreak in 2022, almost 16 million birds have been affected in Pennsylvania alone, and the virus has also been detected in many species other than poultry, including various wildlife, mammals, and livestock. Understanding your biosecurity obligations is the first line of defense for your animals and your livelihood. You can also review livestock disease reporting requirements in Florida and livestock disease reporting in California to see how Pennsylvania’s framework compares to other states.

Premises Registration and Identification Requirements in Pennsylvania

Before you can participate in most regulated livestock activities in Pennsylvania — or even access certain state protections — your property must be registered with the PDA and assigned a Premises Identification Number (PIN).

A premises is any physical location where livestock or poultry are managed, or other locations associated with animal agriculture such as feed stores, feed mills, livestock markets, or exhibitions. If you hold animals at more than one site, each location requires its own unique PIN.

Premise ID allows PDA to find your premises on a map in the event of a disease outbreak, and they can warn you if your flock is at risk due to a nearby infected flock. This early-warning function is one of the most tangible benefits of registration — it gives you time to act before disease reaches your animals.

Premise IDs should be registered with the location of the birds themselves, even if the farmer lives on a different property, to ensure that the birds can be located in the event of an animal health emergency. This is a detail many producers overlook — using a mailing address rather than the physical location of the animals.

To register or request a PIN, contact the PDA directly at [email protected] or call 717-884-1613. A PIN is validated with a 911 address or GPS coordinates, and GPS coordinates are necessary in the case of a pasture with no buildings or a barn with no postal address.

Movement of poultry, poultry products and byproducts, and poultry manure into, within, or out of an HPAI control area requires a movement permit, and a premise ID and a biosecurity plan approved by the Pennsylvania Department of Agriculture are both important requirements for obtaining this permit. Registration is not just administrative paperwork — it is operationally essential. You can learn more about how animal movement documentation works in neighboring contexts by reviewing livestock trailer requirements in Pennsylvania.

Biosecurity Plan Requirements in Pennsylvania

Pennsylvania requires certain livestock and poultry operations to have a formal, written biosecurity plan — and strongly recommends that all operations, regardless of size, develop one. All flocks, regardless of size, should have a biosecurity plan.

Approved biosecurity plans are required for consideration for indemnity if a flock is lost due to avian influenza. Approved plans are also required for flocks of all sizes for a movement permit to be granted. Biosecurity plans for flock premises must be submitted in the NPIP Program Standard E-format.

For dairy and swine operations, PDA maintains a separate submission pathway. Poultry biosecurity plans should be submitted to [email protected], while dairy and swine biosecurity plans should be submitted to [email protected].

The site-specific biosecurity plan should describe or illustrate the boundaries of the Perimeter Buffer Area (PBA) and clearly outline the procedures that caretakers, visitors, or suppliers must follow when entering and leaving the PBA. This means your plan cannot be a generic document — it must reflect your actual farm layout, species, and operational practices.

• Identify all entry and exit points for people, vehicles, and animals
• Define a line of separation between clean and potentially contaminated zones
• Establish disinfection protocols for footwear, equipment, and vehicles
• Include procedures for new animal intake, isolation, and monitoring
• Outline emergency response steps if disease is suspected

Biosecurity plans should be submitted for evaluation proactively before an outbreak occurs. Waiting until a control area is established in your region puts you behind — and without an approved plan, you may be unable to move animals or qualify for financial assistance.

For swine producers, the Pork Checkoff recommends a site-specific approach. Producers should work with their herd veterinarian to write a site-specific enhanced biosecurity plan. Implementing this plan will help prevent exposing animals to disease and will also help maintain business continuity in the event of an outbreak and the limited movement of animals.

Animal Isolation and Movement Control Requirements in Pennsylvania

Controlling how and when animals move — both onto your farm and within it — is one of the most effective tools you have against disease introduction. Pennsylvania’s rules on animal movement are particularly strict during active disease events, but baseline isolation practices apply at all times.

Incoming Animal Quarantine

Bringing new or returning animals onto a farm may introduce diseases to a livestock herd. Even borrowing a breeding animal may compromise the biosecurity of a farm. Isolation of sick, new, or returning animals will bolster your herd health and biosecurity programs.

When you bring new animals onto your property, you should quarantine them separately from your existing herd or flock. If it is not possible to keep isolation and quarantine areas in separate areas from the home herd or flock, create a buffer zone of at least 6 feet between the areas and healthy livestock — and the greater the distance, the better.

Isolated or quarantined animals should be monitored frequently for ailments or irregular behavior and should be assessed for significant diseases before mixing with other animals. A 30-day quarantine period is widely recommended for newly purchased livestock before introducing them to your existing animals.

Interstate Movement Requirements

Pennsylvania imposes specific testing requirements on certain animals entering the state. The Pennsylvania Department of Agriculture announced a quarantine order that requires HPAI testing for any dairy cows coming in from another state, applying to all dairy breeds and crosses, with the only exception being animals going directly to slaughter.

Dairy cattle from a state where avian influenza has been confirmed in dairy cattle in the past 30 days may not be imported to, stopped off in, or unloaded in Pennsylvania without testing of nasal swabs and milk. At least 30 animals — or all animals in loads with fewer than 30 — must be tested within five days before movement.

Movement During Disease Control Events

In the event that the Bureau of Animal Health and Diagnostic Services issues an Order of Special Quarantine for HPAI in dairy cattle, movement of lactating animals on or off the premises will be restricted. During these periods, PDA has authority to control all animal traffic to and from your operation.

Veterinarians and producers are urged to practice good biosecurity, minimize animal movements, test animals before movements, and isolate sick cattle. These are not merely advisory — during active quarantine events they become enforceable conditions. Review how livestock trailer requirements in Nevada and livestock trailer requirements in Wisconsin handle transport compliance if you move animals across state lines.

Visitor, Vehicle, and Equipment Sanitation Rules in Pennsylvania

Every person, vehicle, and piece of equipment that enters your farm is a potential disease vector. Pennsylvania’s biosecurity framework — and the PDA’s guidance — places significant responsibility on producers to control and document farm access.

Personnel Protocols

Everyone on the farm should wear clean clothes, scrub boots or shoes with disinfectant, and wash hands before and after contact with animals. This applies to your own staff as well as any outside visitors — veterinarians, feed delivery drivers, AI technicians, inspectors, and others.

All staff must leave boots and footwear used on the farm in a designated location for safe storage. All footwear used on the farm must be cleaned and disinfected, including sides and bottoms, prior to storing them. If you come into contact with other livestock, clothing and footwear should be changed before coming to the farm.

Farm visitors include neighbors, friends, AI technicians, veterinarians, feed industry personnel, supply sales and service representatives, equipment repair individuals, agency personnel, inspectors, mortality collectors, and custom manure haulers and applicators. All visitors to your farm should practice good biosecurity procedures.

Vehicle and Equipment Sanitation

Farm equipment that has come into contact with livestock or their bodily discharges can be a source of infections. Manure-hauling equipment should not be shared between farms without thorough cleaning and disinfection. On-farm use of equipment such as front-end buckets and skid-steer loaders for both manure removal and feed delivery can spread diseases such as salmonella, leptospirosis, cryptosporidiosis, and Johne’s disease.

Vehicle tires and undercarriages can harbor disease-causing germs, especially if they have come into direct contact with animal discharges. Many germs do not survive long outside the animal, but some do, and these sources can be critical for highly transmissible diseases such as foot-and-mouth disease.

Footbaths at farm entry points are a key tool, but only when properly maintained. This means regularly refreshing disinfectants, ensuring they remain free of organic materials such as mud or manure, and maintaining proper disinfectant concentrations. A footbath filled with dirty water provides almost no protection.

When you or your employees visit other farms, the sales barn, or feed mill, you should practice the same biosecurity you expect your visitors to practice. Such practices include, but are not limited to, wearing only clean clothing and boots on your farm.

Wildlife and Pest Control Obligations in Pennsylvania

Wild animals and farm pests are among the most difficult biosecurity threats to control — and in Pennsylvania, they are among the most pressing. As the HPAI virus continues to circulate in wild bird populations, especially waterfowl, which are the primary reservoir of the disease, it is crucial that poultry owners prioritize implementing good biosecurity practices.

PDA urges all dairy producers to update their biosecurity plans and be wary of wild birds — primarily waterfowl — that continue to be the main spreaders of HPAI, and there is evidence that suggests the virus can be transmitted from cow to cow, as well as from bird to cow.

Pennsylvania’s landscape creates specific wildlife risks. Pennsylvania is high-risk for wildlife conflict. Raccoons, red foxes, fishers, and birds of prey are prevalent; hardware cloth and heavy-duty nesting box latches are standard requirements.

Key wildlife and pest control obligations for Pennsylvania producers include:

• Securing feed storage in sealed, rodent-proof containers to prevent contamination
• Maintaining physical barriers — fencing, netting, and hardware cloth — to exclude wild birds and mammals from animal housing
• Reporting sick or dead wild birds to the Pennsylvania Game Commission at 833-PGC-HUNT or [email protected]
• Implementing rodent control programs around all feed storage and animal housing areas
• Minimizing standing water and other attractants that draw wildlife near livestock facilities

Animal production living areas must be kept clean, with measures in place to minimize rodents. Feed must be kept clean and stored in a way to prevent contamination, including from insects and rodents. These requirements apply to poultry operations under PDA oversight but reflect the broader standard expected across all livestock species.

Understanding wildlife disease risks is also relevant to companion animals on your farm. Pennsylvania’s rabies vaccine requirements in Pennsylvania apply to dogs and cats that may interact with wildlife near your livestock. You may also find it useful to understand the role of livestock guardian dogs as part of an integrated wildlife deterrence strategy.

Dead Animal Disposal Requirements in Pennsylvania

Proper disposal of dead livestock and poultry is a legal requirement in Pennsylvania — not a discretionary management choice. Improper disposal creates biosecurity risks, attracts wildlife and pests, and violates state law.

The PA Domestic Animal Act lists important legal requirements for all poultry and livestock operations. Responsible parties must properly dispose of the carcass within 48 hours after a domestic animal dies, prevent exposure of the carcass to other living animals and the public, not endanger environmental, animal, or public health while transporting dead stock, and be licensed by the PA Department of Agriculture if they purchase or receive a dead domestic animal for disposal purposes.

The four legal methods of disposal under Pennsylvania law are mortality composting, rendering, incineration, and burial. Each method has specific requirements and considerations, and you must choose one that is appropriate for your operation and site conditions.

Comparing the Four Legal Disposal Methods

Livestock and poultry operations must decide which disposal option is best for their operation, taking biosecurity, herd or flock health, human health, safety, cost, time, equipment, labor, land, soils, water, and neighbor and nuisance issues into account, then implement a plan for proper mortality disposal.

Burial has the greatest number of environmental, public health, and safety considerations. Burial sites need to be chosen carefully to prevent groundwater and well water contamination. Adequate cover prevents wild animals, dogs, or birds from exhuming the carcasses. Poor coverage of carcasses can spread disease, be unsightly, and attract rodents and flies.

Incineration is not the same as open-air burning. Open-air burning is not a legal way to dispose of dead stock. Incineration requires a special unit specifically designed for that purpose.

For catastrophic mortality events — such as a whole-herd or whole-flock loss — call the PDA Bureau of Animal Health and Diagnostic Services for more information and instructions at 717-772-2852.

Staying current on disease reporting obligations in other states can also inform your overall compliance strategy. Review livestock disease reporting in Colorado for a comparative perspective, and consult the PDA’s Bureau of Animal Health and Diagnostic Services for the most current Pennsylvania-specific guidance as regulations evolve.