Livestock Disease Reporting in Ohio: Rules, Deadlines, and Requirements

Ohio is home to one of the largest and most diverse agricultural economies in the Midwest, and protecting that industry starts with a single critical action: reporting a sick animal before a disease spreads. Whether you raise cattle, hogs, sheep, poultry, or any other livestock species, state and federal law requires you to act fast when a dangerous disease appears on your property.

Understanding livestock disease reporting in Ohio means knowing which diseases trigger a mandatory report, who is legally obligated to make that call, and what the Ohio Department of Agriculture (ODA) does once you do. This guide walks you through every step of that process so you can stay compliant, protect your herd, and avoid serious penalties.

Reportable Livestock Diseases in Ohio

Ohio’s livestock disease reporting framework operates on two levels: state-regulated diseases governed by Ohio law and federally designated diseases that must be reported to USDA’s Animal and Plant Health Inspection Service (APHIS). Both layers apply to Ohio producers and veterinarians simultaneously.

At the state level, Ohio Administrative Code Chapter 901:1-21 governs dangerously contagious, infectious, and reportable diseases in animals. The Ohio Revised Code Chapter 941 defines the broader framework for animal disease control, including the authority of the ODA’s Division of Animal Health to respond to outbreaks. Under ORC § 941.01, a “disease of concern” is defined as any disease — including any foreign animal disease — that the director determines may have an adverse impact on the animal or poultry industry or to public health in Ohio.

At the federal level, USDA APHIS maintains the National List of Reportable Animal Diseases (NLRAD), which is codified in 9 CFR Part 57. This list is divided into two tiers:

• Notifiable diseases — high-priority diseases requiring immediate reporting, typically within 24 hours of suspicion or confirmation
• Monitored diseases — endemic diseases tracked over time, with reporting generally required within 30 days of confirmation

The following diseases are among those considered high-priority or immediately reportable for livestock in Ohio, consistent with NLRAD and ODA classifications:

Ohio’s ODA also has authority to designate additional “diseases of concern” at the state level — diseases that may not be reportable to the USDA but that the director determines pose a threat to Ohio’s animal or poultry industry. This gives the state flexibility to respond to emerging threats before they reach federal designation. You can learn more about bovine diseases that may fall under these categories.

Who Is Required to Report a Livestock Disease in Ohio

Ohio’s reporting obligations extend well beyond farm owners. The law places the duty to report on a broad class of individuals who encounter or suspect a notifiable or regulated disease in any animal.

Under the federal NLRAD framework, the reporting obligation falls on animal health professionals — defined as any individual, corporate entity, or animal health organization with formal training in the diagnosis or recognition of animal diseases or pests of livestock. This includes, but is not limited to:

• Licensed veterinarians (including accredited and non-accredited practitioners)
• Diagnostic laboratory personnel
• Biomedical researchers
• Public health officials
• Trained animal health technicians
• Zoo personnel with relevant training
• Wildlife personnel with animal health training

At the state level, Ohio Revised Code Chapter 941 charges the ODA’s Division of Animal Health with controlling and eradicating dangerously contagious or infectious diseases. The Chief of the Division of Animal Health — who must be a licensed and accredited veterinarian — is responsible for cooperating with the USDA in disease control efforts. This means that when a veterinarian in Ohio diagnoses or suspects a reportable disease, they are required to notify the ODA and, for federally notifiable diseases, USDA APHIS as well.

Livestock owners and producers also carry a practical and legal responsibility. While the statutory reporting duty is most explicitly placed on veterinarians and animal health professionals, producers who observe signs of a dangerous disease are expected to contact their veterinarian immediately — and in many cases, ODA rules require that the owner cooperate fully with any resulting investigation or quarantine order.

Diagnostic laboratories in Ohio are also key players in the reporting chain. When a lab confirms or suspects a notifiable disease, it must coordinate with the State Animal Health Official and the USDA Area Veterinarian in Charge (AVIC) to ensure the case is reported in accordance with NLRAD System Standards. You can also review how zoonotic diseases — those transmissible between animals and humans — trigger additional reporting channels beyond animal health authorities alone.

Signs and Symptoms That Trigger a Report in Ohio

Knowing when to report starts with recognizing the clinical signs that indicate a potentially reportable disease. You do not need a confirmed laboratory result to initiate a report for the most dangerous diseases — clinical suspicion is enough and, in many cases, legally required.

The following signs and symptom clusters are among the most important triggers for immediate reporting in Ohio livestock:

Vesicular or Blister-Like Lesions

Blisters, erosions, or raw sores on the mouth, tongue, feet, or teats of cattle, swine, sheep, or goats are a hallmark of foot-and-mouth disease and vesicular stomatitis — both immediately reportable. Cases in cattle and sheep that produce these lesions may also mimic other reportable diseases such as bluetongue. Any time you see these signs, contact your veterinarian without delay.

Sudden or Unexplained Mass Deaths in Poultry

Rapid, unexplained die-offs in a poultry flock — especially when combined with respiratory distress, neurological signs, or a sharp drop in egg production — are classic indicators of Highly Pathogenic Avian Influenza (HPAI) or virulent Newcastle disease. The ODA has emphasized that HPAI spreads quickly and can be fatal to entire flocks. Report any unusual poultry mortality immediately rather than waiting to assess the full scope of the outbreak.

Neurological Signs

Tremors, circling, head pressing, seizures, or unexplained paralysis in cattle, sheep, swine, or horses can signal diseases such as bovine spongiform encephalopathy (BSE), rabies, or foreign animal diseases affecting the central nervous system. These signs warrant immediate veterinary evaluation and, in most cases, prompt reporting.

Reproductive Failures and Abortions

A sudden increase in abortions, stillbirths, or infertility across a herd or flock may indicate brucellosis, bovine viral diarrhea (BVD), or other reportable conditions. Brucellosis in particular is an immediately notifiable disease with serious public health implications, as it is also a zoonotic disease transmissible to humans.

Severe Respiratory Disease

Rapid-onset respiratory distress, nasal discharge, coughing, or labored breathing affecting multiple animals in a short period can indicate HPAI in poultry or other reportable respiratory diseases in cattle and swine. A single sick animal may warrant a call to your vet; multiple animals showing the same signs simultaneously should trigger an immediate report.

For swine producers specifically, the ODA has published guidance on minimizing influenza transmission at swine exhibitions, reflecting the state’s awareness of how quickly respiratory diseases can spread at fairs and livestock events. Erysipelas — an infectious disease seen mainly in growing pigs and characterized by sudden death, fever, skin lesions, and arthritis — is another condition Ohio producers should recognize and discuss with their veterinarian.

How to Report a Livestock Disease in Ohio

Reporting a suspected or confirmed livestock disease in Ohio involves notifying the right agencies through the right channels. The process differs slightly depending on whether the disease is a federally notifiable condition or a state-designated disease of concern.

Step 1: Contact Your Veterinarian

Your first call should always be to your licensed veterinarian. If you do not have a herd veterinarian, contact any accredited large-animal practitioner in your area. The veterinarian will conduct an initial clinical assessment and determine whether the signs warrant an emergency report. For the most dangerous foreign animal diseases — such as foot-and-mouth disease — your veterinarian is required to report immediately upon clinical suspicion, even before laboratory confirmation.

Step 2: Notify the ODA Division of Animal Health

The Ohio Department of Agriculture’s Division of Animal Health is the primary state contact for livestock disease reporting. You can reach the division at its main office in Reynoldsburg, Ohio. The division’s responsibilities include livestock and poultry testing and inspection, controlling animal diseases in Ohio, and providing diagnostic services through the Animal Disease Diagnostic Laboratory (ADDL).

Contact information for the ODA Division of Animal Health:

• Address: 8995 E. Main Street, Reynoldsburg, Ohio 43068
• Phone: 614-728-6220
• Website: agri.ohio.gov/divisions/animal-health

Step 3: Notify USDA APHIS for Federally Notifiable Diseases

For diseases on the NLRAD notifiable list, your veterinarian must also contact both the State Animal Health Official and the USDA APHIS Area Veterinarian in Charge (AVIC) for Ohio. APHIS uses several data systems to track notifiable disease cases, including the Emergency Management and Response System (EMRS) 2.0 and the Surveillance Collaborations Services (SCS) platform. Your state animal health official or APHIS representative will guide you through which system applies to your specific case.

Step 4: Submit Laboratory Samples

In most cases, the ODA or your veterinarian will collect and submit samples to the Ohio Animal Disease Diagnostic Laboratory (ADDL) or a USDA-approved National Animal Health Laboratory Network (NAHLN) laboratory. Do not wait for lab results before reporting — for notifiable diseases, reporting on suspicion is required. Laboratory confirmation is used to classify the case and trigger further response actions.

Comparing how other states handle this process can also be useful context. Ohio’s approach shares structural similarities with livestock disease reporting in Michigan and livestock disease reporting in Illinois, where state veterinarians coordinate closely with USDA APHIS through similar notification chains.

Reporting Deadlines and Timeframes in Ohio

Timeliness is one of the most critical elements of livestock disease reporting. Ohio’s reporting deadlines align with the federal NLRAD System Standards while incorporating state-specific requirements for diseases of concern.

For notifiable diseases, the 24-hour clock begins the moment a veterinarian or animal health professional suspects or confirms the presence of the disease — not when laboratory results come back. This is an important distinction. Waiting for confirmation before reporting a disease like foot-and-mouth disease or African swine fever could allow the pathogen to spread to neighboring operations.

For monitored diseases, reporting is required within 30 days of laboratory confirmation. These are diseases that are endemic in the United States, and APHIS uses the data gathered to monitor changes in disease occurrence over time. Monthly reporting by State Animal Health Officials and laboratories feeds into the national surveillance picture.

Certificates of veterinary inspection involved in animal movement also carry their own time constraints. Under OAC 901:1-17, a copy of a certificate of veterinary inspection must be forwarded to the ODA Division of Animal Health within seven days of issuance, and the certificate itself is void 30 days after inspection unless extended by a departmental permit.

What Happens After You Report in Ohio

Filing a report triggers a structured response from both the ODA and, for federally notifiable diseases, USDA APHIS. Understanding what to expect after you make that call helps you cooperate effectively and protect your operation.

Initial Investigation

Once a report is received, the ODA Division of Animal Health will assign an investigator — typically a state veterinarian or field officer — to visit the affected premises. The investigator will conduct a clinical examination of the animals, review herd records, and assess the scope of potential exposure. You are required by law to provide access to your animals and records during this process.

Quarantine and Movement Restrictions

If the initial investigation supports the presence of a reportable disease, the ODA Director has authority under ORC Chapter 941 to impose a quarantine on the affected premises. During a quarantine, no animals may leave or enter the property without explicit written authorization from the ODA. Movement of equipment, feed, and other materials that could spread the disease may also be restricted.

Animals imported into Ohio in violation of animal health rules are subject to quarantine and must be brought into compliance at the owner’s expense. If compliance is not achievable, the ODA may order the animal returned to its place of origin, delivered to slaughter, or destroyed — also at the owner’s expense.

Laboratory Testing and Case Classification

Samples collected during the investigation are submitted to the ADDL or a NAHLN-approved laboratory. Results are used to classify the case as confirmed, suspect, or ruled out. For foreign animal diseases, samples may be sent to the USDA National Veterinary Services Laboratories (NVSL) in Ames, Iowa, for definitive confirmation.

Eradication and Control Measures

For confirmed cases of high-priority diseases, state and federal authorities may implement depopulation (culling of affected and exposed animals), decontamination of premises, and enhanced surveillance of neighboring operations. The ODA cooperates with USDA APHIS in these efforts, and federal indemnity programs may be available to compensate producers for animals that must be destroyed as part of an eradication program.

The ODA’s Division of Animal Health also provides diagnostic services through the Animal Disease Diagnostic Laboratory, which supports both disease investigation and routine herd health monitoring. Producers dealing with Newcastle disease in poultry or other specific pathogens can access laboratory resources through this channel. For context on how neighboring states manage post-report responses, see livestock disease reporting in Florida and livestock disease reporting in California.

Penalties for Failing to Report in Ohio

Ohio takes non-compliance with animal disease reporting seriously. Penalties can come from multiple directions — state law, federal law, and professional licensing boards — depending on who failed to report and what disease was involved.

State Penalties Under ORC Chapter 941

Ohio Revised Code Chapter 941 includes a penalty provision at § 941.99 for violations of the animal disease statutes. Violations of ORC Chapter 941 — which governs animal disease reporting, quarantine compliance, and cooperation with ODA investigations — can result in criminal misdemeanor charges. Ohio law also authorizes civil enforcement actions against producers and veterinarians who fail to comply with ODA orders, including quarantine directives.

Under Ohio’s Livestock Care Standards framework, the ODA has authority to impose civil penalties for violations. For minor violations — those that do not place an animal’s life in imminent peril — fines can reach up to $500 for a first offense and up to $1,000 for a subsequent offense committed within 60 days of a prior violation.

Federal Penalties Under NLRAD

Failure to report a federally notifiable disease violates 9 CFR Part 57, the regulation establishing the National List of Reportable Animal Diseases. The NLRAD regulation creates a legal obligation to report detections of disease. Federal violations can result in civil penalties under the Animal Health Protection Act (AHPA), which authorizes fines of up to $50,000 per violation for individuals and up to $250,000 per violation for businesses or organizations.

Veterinary License Consequences

For licensed veterinarians, failure to report a notifiable disease can trigger a complaint with the Ohio Veterinary Medical Licensing Board. Disciplinary outcomes can include license suspension or revocation, in addition to any civil or criminal penalties imposed under state or federal law. The Ohio Veterinary Medical Association (OVMA) maintains resources on legal and regulatory obligations for Ohio veterinarians, including disease reporting requirements under OAC and ORC provisions.

Operational and Economic Consequences

Beyond formal penalties, failure to report a disease in time can have severe operational consequences. A delayed report that allows a disease to spread to neighboring farms can expose the non-reporting producer to civil liability for damages suffered by other operations. It can also result in the loss of eligibility for federal indemnity payments — compensation that might otherwise offset the cost of depopulation or herd losses during an eradication program.

Producers in Ohio who want to stay ahead of disease risks should also review livestock disease reporting in Colorado for additional regulatory context, and explore general resources on zoonotic disease prevention to understand the public health dimensions of livestock disease management. Staying informed about Newcastle disease and diseases in birds is especially relevant for Ohio’s poultry producers, given the state’s significant poultry industry and the ongoing threat of HPAI.

Timely, accurate reporting is not just a legal requirement — it is the foundation of Ohio’s animal disease defense system. When every producer, veterinarian, and laboratory does their part, the state’s ability to contain outbreaks quickly and protect the broader agricultural economy is dramatically strengthened.