Avian Flu Regulations in Pennsylvania: What Every Poultry Owner Must Know
July 22, 2026
Pennsylvania is home to one of the largest and most economically significant poultry industries in the United States, and that scale makes the stakes around avian flu exceptionally high. Poultry is the largest sector of Pennsylvania’s $132.5 billion agriculture industry, supporting nearly 48,800 farms and almost 600,000 jobs across the Commonwealth. When avian flu enters that system, the consequences ripple far beyond individual farms.
Whether you manage a commercial egg-layer operation or keep a small backyard flock, Pennsylvania law places specific obligations on you — from registering your premises and maintaining a written biosecurity plan to reporting sick birds within hours of noticing symptoms. Failing to meet those obligations can cost you your flock, your eligibility for indemnity payments, and potentially expose you to legal penalties.
This guide walks you through every major regulatory requirement so you know exactly what the Pennsylvania Department of Agriculture (PDA) and the USDA expect from you — and what happens if those expectations are not met. For context on other animal disease regulations that affect Pennsylvania-area livestock owners, you may also find our article on avian tuberculosis and avian chlamydiosis useful reading.
HPAI vs. LPAI: Understanding Avian Flu Classifications in Pennsylvania
Not all avian influenza strains carry the same regulatory weight. Understanding the difference between the two main classifications — highly pathogenic avian influenza (HPAI) and low pathogenic avian influenza (LPAI) — is the foundation for understanding why Pennsylvania’s rules are structured the way they are.
Avian influenza subtypes differ and are classified based on a combination of two groups of proteins on the surface of the influenza A virus: hemagglutinin (“H”) proteins, of which there are 16 (H1–H16), and neuraminidase (“N”) proteins, of which there are 9 (N1–N9). Many different combinations of these proteins are possible, and each combination is considered a different subtype that can be further broken down into different strains.
Avian influenza viruses are further classified by their pathogenicity — the ability of a particular virus strain to produce disease in domestic chickens. HPAI virus strains are extremely infectious, often fatal to domestic poultry, and can spread rapidly from flock to flock. Low pathogenic avian influenza (LPAI) virus strains, by contrast, occur naturally in wild migratory waterfowl and shorebirds, usually without causing illness.
The avian influenza viruses that cause the most concern in poultry and wild birds are HPAI viruses and any virus designated as H5 or H7, because H5 and H7 viruses have the capability to convert from LPAI to HPAI. This conversion potential is why Pennsylvania regulators treat H5 and H7 strains with the same urgency as confirmed HPAI, even when pathogenicity has not yet been established.
HPAI is a serious disease of poultry caused by a highly contagious virus. The detection of HPAI requires rapid elimination of the virus because it is often fatal to poultry species. LPAI, while subject to monitoring and some movement restrictions, does not trigger the same emergency quarantine and depopulation response that HPAI does. Knowing which classification applies to a suspected case helps you anticipate the regulatory response that will follow.
Premises Registration Requirements for Poultry Owners in Pennsylvania
Premises registration is one of the most basic — and most important — steps you can take as a poultry owner in Pennsylvania. Registering your premises with the PDA assigns your location a unique Premises ID number, which becomes the cornerstone of disease traceability during an outbreak.
Even if a movement permit is not necessary for your operation, flocks of all sizes can benefit from registering for a Premises ID with the Pennsylvania Department of Agriculture. Registering helps protect the poultry industry in terms of disease traceability during an outbreak by allowing animal health officials to quickly and precisely identify where animals that may be affected are located. When a flock is in the system, PDA can inform owners and producers about HPAI or other relevant disease outbreaks in a timely manner.
Registration is not merely a courtesy — it is a functional requirement for accessing the state’s disease response infrastructure. Movement of poultry, poultry products and byproducts, and poultry manure into, within, or out of an HPAI control area requires a movement permit. A Premises ID and a biosecurity plan approved by the Pennsylvania Department of Agriculture are both important requirements for obtaining this permit.
If you do not already have your premises registered with the department, you should do so and include current contact information. You can register through the PDA’s online portal at agriculture.pa.gov.
For commercial operations, the Premises ID is also tied to your eligibility for indemnity payments under USDA programs. Without a registered premises and an approved biosecurity plan on file, your ability to claim compensation for HPAI losses may be significantly limited or denied entirely.
Biosecurity Requirements for Commercial and Backyard Flocks in Pennsylvania
Biosecurity is the single most effective tool available to prevent HPAI from reaching your birds. Pennsylvania requires that biosecurity be practiced at every level of poultry ownership — from large commercial egg-layer facilities down to small backyard flocks.
Biosecurity is vital for anyone who owns or works with poultry, whether on a commercial farm, in the wild, or at a hobby or backyard farm. You should take proper steps to keep HPAI and other animal diseases from infecting your flock or spreading to other flocks. The best way to protect your birds is to follow good biosecurity. Having a biosecurity plan in place, and following that plan daily, is vital to protect Pennsylvania’s poultry.
Biosecurity plans for flock premises must be submitted in the NPIP Program Standard E format. Premises that have flock sizes above the threshold set by PDA must have a PDA-approved written biosecurity plan meeting the NPIP Standard E requirements. Biosecurity plans should be submitted for evaluation proactively before an outbreak occurs.
The core elements of a compliant biosecurity plan include the following:
- Line of Separation (LOS): A line that separates poultry from potential disease sources, such as walls or fences. Everyone who crosses this line must take precautions to leave pathogens behind, and pets and other animals should be kept outside of the LOS.
- Visitor control: Limit the number of visitors to your flock. Everyone crossing the LOS should follow the procedures outlined in the biosecurity plan. A clean pair of boots or shoes worn only in the poultry area should be the minimum requirement. Everyone should also wear clean clothes or clean coveralls around your birds. Hands should be washed or sanitized before crossing the LOS. No one should be around your birds if they have been around other poultry or wild birds.
- New bird quarantine: One of the greatest risks comes from introducing new animals onto your premises and commingling or exposing your flock to other animals. This is a common way to introduce new disease-causing organisms. As a rule of thumb, new animals should be segregated for 30 days.
- Water source management: Provide feed and water for all non-confinement-raised poultry in an indoor area. Birds should not be allowed access to surface water that could potentially transmit AI or other avian pathogens through contamination with wild bird excrement.
- Vehicle and equipment sanitation: Clean and disinfect vehicles and equipment. Any vehicle leaving an infected premises must undergo thorough cleaning and disinfection before departing.
- Wild bird prevention: Prevent contact between domestic flocks and wild birds.
For commercial operations located in an active HPAI Control Area or Surveillance Zone, the requirements escalate significantly. For commercial flocks located in a Control Area (Infected and Buffer Zones, 1–10 km) and a Surveillance Zone (10–20 km), weekly testing every 5–7 days is required regardless of movement.
You can find the NPIP Standard E biosecurity plan template on the PDA Laboratory System’s HPAI page. The USDA’s Defend the Flock program also provides educational resources and tools for building a strong biosecurity plan. For additional context on how animal disease regulations work in neighboring states, see our coverage of horse boarding regulations in Wyoming and horse boarding regulations in Wisconsin.
Reporting Sick or Dead Birds in Pennsylvania
Rapid reporting is legally required and operationally critical. HPAI is a serious disease of poultry caused by a highly contagious virus, and its detection requires rapid elimination of the virus because it is often fatal to poultry species. Every hour of delay in reporting increases the risk of spread to neighboring flocks.
If you suspect your poultry is infected with avian influenza, you are required to report your concerns 24 hours a day, 7 days a week to the Pennsylvania Bureau of Animal Health and Diagnostic Services at 717-772-2852, option 1.
Sick or dead wild birds should be reported separately to the Pennsylvania Game Commission at 833-PGC-Hunt or pgc-wildlifehealth@pa.gov. The distinction matters: domestic poultry goes to PDA, wild birds go to the Game Commission. Reporting to the wrong agency can cause delays in the response.
Key warning signs to watch for in your flock include:
- Sudden, unexplained increase in mortality
- Severe drop in egg production
- Respiratory distress, coughing, or sneezing
- Neurological signs such as loss of coordination or tremors
- Swelling of the head, comb, wattles, or legs
- Diarrhea or unusual lethargy
Animal health professionals — including veterinarians, diagnostic laboratory staff, public health personnel, zoo workers, and wildlife personnel — are required to report diagnosed or suspected cases of nationally listed reportable animal diseases to APHIS Area Veterinarians in Charge and the state animal health official as applicable under state reporting regulations. If your veterinarian examines your birds and suspects AI, they are independently obligated to report it, regardless of whether you do so first.
Testing of suspect flocks is conducted by the Pennsylvania Animal Diagnostic Laboratory System (PADLS), which includes labs at the Pennsylvania Veterinary Laboratory, Penn State’s Animal Diagnostic Laboratory, and the University of Pennsylvania’s New Bolton Center. From July 1, 2024 through June 30, 2025, PADLS processed 672,342 HPAI tests, including more than 200,000 poultry samples and 29,000 cattle samples.
Pennsylvania’s Current HPAI Status and Active Outbreak Zones
Pennsylvania has been at the center of one of the most severe HPAI outbreaks in U.S. history. Since the beginning of 2026, the state has been confronting one of the most severe waves of highly pathogenic avian influenza in its history, with the first two months of the year marked by a dramatic increase in morbidity and associated depopulation.
According to the USDA, 27 flocks in Pennsylvania tested positive in 2026, impacting more than 7.6 million birds. Most are in Lancaster County — the center of the state’s $7.1 billion poultry industry. Other reported outbreaks were also confirmed in Dauphin, Philadelphia, and Bucks counties.
The H5N1 virus has affected multiple segments of the poultry industry, with the egg-laying sector sustaining the greatest losses. In Lancaster County alone, approximately 2.6 million laying hens were culled at one large commercial facility, with an additional 1.5 million at a second site.
The Pennsylvania Department of Agriculture continues to monitor and respond to avian influenza in domestic poultry, including cases detected in backyard and commercial flocks. As positive cases have been identified, the department has escalated an aggressive, coordinated response to prevent the spread of the virus and protect the state’s agriculture industry.
To check whether your specific address falls within an active Control Area, use the PDA’s Control Area Address Checker on the PADLS HPAI page. This tool is the most reliable way to confirm your current movement and testing obligations in real time. The outbreak situation is actively evolving; always verify your zone status directly with PDA rather than relying on older maps or news reports.
Poultry Movement and Quarantine Restrictions in Pennsylvania
Once HPAI is confirmed in Pennsylvania, a structured system of geographic zones is immediately established around the infected premises, and movement restrictions apply differently within each zone.
The Three-Zone Structure
Three zones — which may overlap — are established around each Index Premises: an Infected Zone extending 3 kilometers in every direction, a Control Zone extending 10 kilometers in every direction, and a Surveillance Zone extending 20 kilometers in every direction from each Index Premises.
| Zone | Radius from Infected Premises | Primary Restriction |
|---|---|---|
| Infected Zone | 0–3 km (approx. 0–1.9 miles) | No movement of poultry or poultry products without permit; no transport of poultry or egg products |
| Control Zone (Buffer) | 3–10 km (approx. 1.9–6.2 miles) | All poultry movement by permit only; weekly surveillance testing required for commercial flocks |
| Surveillance Zone | 10–20 km (approx. 6.2–12.4 miles) | Weekly surveillance testing required for commercial flocks; movement monitoring |
After HPAI is identified, quarantines are placed to control movement and prevent transmission of the virus from the infected premises. When a quarantine control area of at least 10 kilometers surrounds the infected flock, any movement related to poultry, poultry products and by-products, and manure will be by permit only. Permitting allows premises to make necessary movements while limiting the risk of disease spread.
How to Obtain a Movement Permit
The Department uses the USDA Emergency Management Response System 2.0 (EMRS2) for permitted movements into, within, between, and out of HPAI Control Areas. Access to EMRS2 through the “gateway” during an outbreak will be granted on an as-needed basis for companies affected by a control area.
All permit request applications for the movement of poultry, poultry products, and manure must include a biosecurity plan in the format of the NPIP Standard E approved by PDA or the applicable signed SPS permit guidance document. For permitting questions, contact PDA at (223) 666-2555 or email RA-AG-PAPERMITS@PA.GOV.
All commercial poultry facilities within a 10-kilometer radius of infected flocks are subject to testing requirements and restrictions on moving poultry products. Negative test results are required for farms near infected premises to move product to market.
A Control Area is established when HPAI is detected in poultry and is released when certain conditions are met. Poultry on farms that are not under quarantine and are located outside the remaining Control Areas are no longer subject to movement controls and surveillance testing activities.
Flock Depopulation and Compensation Rules in Pennsylvania
If HPAI is confirmed on your premises, depopulation — the humane destruction of all birds on the infected site — is the required response under both state and federal protocols. This is not a discretionary step; it is a regulatory mandate aimed at eliminating the virus before it spreads further.
The Department, together with the USDA, leads a state and federal interagency task force carrying out a comprehensive response on affected farms. Each presumed positive farm is quarantined. State animal health teams deploy immediately alongside USDA partners and local emergency management officials. Together, they work to quarantine affected sites, conduct testing, oversee virus elimination, and guide cleaning and disinfection protocols to prevent further spread.
Federal Indemnity Through USDA APHIS
USDA provides payments for the fair market value of birds destroyed due to HPAI, including disposal and cleaning costs. USDA financial assistance programs support biosecurity upgrades (up to $25,000 per premises) and PPE costs, aimed at offsetting losses and enhancing biosecurity.
To remain eligible for indemnity, you must meet specific conditions. Under the December 31, 2024 USDA APHIS interim rule:
- When a poultry producer intends to restock a previously infected premises, that premises must pass a biosecurity audit prior to the movement of poultry onto the premises. In addition, all previously infected premises must pass a virtual biosecurity audit every six months until the state in which the premises is located declares freedom from HPAI.
- When a poultry producer intends to move poultry onto a premises located within a buffer zone, the receiving premises in the buffer zone must pass a biosecurity audit.
- Producers must have had an approved biosecurity plan in place and in active use at the time of the HPAI detection to be eligible for indemnity.
Pennsylvania’s HPAI Recovery Fund
Pennsylvania’s last three budgets each set aside $25 million for the HPAI Recovery Fund. As of late 2025, 292 applicants had received a total of nearly $15.7 million to help them recover losses and protect their operations with biosecurity improvements. The fund held $59.6 million in reserve.
Recovery grants can help pay for biosecurity upgrades. Pennsylvania’s state veterinarians also strongly urge producers to take advantage of free Wildlife Biosecurity Assessments from the USDA to help identify and reduce risks on their farm. Applications for recovery grants are submitted through the PDA; check agriculture.pa.gov for the current application window.
Penalties for Non-Compliance in Pennsylvania
Pennsylvania’s regulatory framework for avian flu is backed by the Domestic Animal Law (3 Pa.C.S.A. §§ 2301–2389), which gives the PDA broad enforcement authority. Non-compliance is not treated as a minor administrative matter — it carries real legal and financial consequences.
Regulatory Authority and Enforcement
The Department has broad authority under the Domestic Animal Law to regulate the keeping and handling of domestic animals, conveyances, containers, goods, products, and materials, in interstate and intrastate commerce, in order to exclude, contain, or eliminate dangerous transmissible diseases, including prohibiting the shipment or movement of such products.
Avian influenza is designated a “dangerous transmissible disease” of animals under the provisions of the Domestic Animal Law (3 Pa.C.S.A. §§ 2301–2389), at 3 Pa.C.S.A. § 2321(a)(6). This designation activates the full scope of the Department’s quarantine and enforcement powers.
Consequences of Non-Compliance
| Violation Type | Potential Consequence |
|---|---|
| Moving poultry or products out of a Control Area without a permit | Criminal violation under the Domestic Animal Law; subject to fines and legal action |
| Refusing or delaying entry to PDA inspectors | Department may obtain a court-issued search warrant; refusal after warrant is unlawful |
| Failure to report suspected HPAI | Potential loss of indemnity eligibility; regulatory penalties under state law |
| No approved biosecurity plan (where required) | Disqualification from USDA indemnity payments for destroyed birds |
| Moving poultry onto premises in an infected zone within 14 days of control area dissolution | Loss of indemnity if birds subsequently become HPAI-infected |
It is unlawful for any person to refuse or delay admission to any premises to any officer, agent, or employee of the department provided with a search warrant issued pursuant to this section. Obstruction of a lawful inspection is a separate and serious offense under Pennsylvania law.
Since 2022, APHIS has spent approximately $227 million on indemnity payments to premises that have been infected multiple times by HPAI. The federal government’s response to this cost has been to tighten indemnity eligibility — meaning producers who do not maintain compliant biosecurity plans now face a real risk of receiving nothing when disaster strikes.
Pennsylvania’s poultry regulations are detailed, actively enforced, and subject to change as the HPAI situation evolves. For the most current quarantine orders, zone maps, and permit requirements, always consult the official PDA resources at agriculture.pa.gov and the PADLS HPAI page. You can also access Penn State Extension’s avian influenza resource hub for producer-focused guidance and biosecurity planning tools. For broader context on how wildlife and livestock regulations work across the region, explore our guides on bass fishing regulations in Ohio and bass fishing regulations in Virginia.