Bovine Tuberculosis Testing Requirements in New Jersey: A Cattle Owner’s Guide to Compliance
September 6, 2026
New Jersey has not had a case of bovine tuberculosis in its cattle population in decades, yet the state still enforces a full set of testing, import, and reporting rules tied to the disease. That is because bovine tuberculosis testing requirements in New Jersey are driven as much by federal law and interstate trade rules as by any local outbreak history. If you own, import, or move cattle in the Garden State, understanding these rules can save you from a rejected shipment, a quarantine order, or a fine.
This guide walks through what the disease is, how New Jersey is classified, who has to test, which methods are approved, and what happens if a test comes back suspect or positive.
What Is Bovine Tuberculosis and Why It Is Regulated in New Jersey
Bovine tuberculosis is caused by Mycobacterium bovis, a slow-moving bacterium that produces a chronic, sometimes lifelong infection. Bovine tuberculosis (TB) is a contagious, infectious, communicable disease of animals and humans caused by Mycobacterium bovis, and is commonly a chronic, debilitating disease that occasionally may assume an acute, rapidly progressive course, affecting nearly all species of vertebrates. It spreads through direct contact, inhalation of droplets expelled from infected lungs, and ingestion of contaminated feed or milk.
The disease is not limited to cattle. Bovine tuberculosis is a rare disease that affects mammals, including cattle, deer, goats, dogs, and humans, and Mycobacterium bovis is the bacteria that causes it. That cross-species reach is a big part of why New Jersey treats TB as a regulated animal disease rather than leaving it to individual herd owners to manage. For a broader look at how bovine illnesses are classified and managed on U.S. farms, see this overview of common bovine diseases.
Regulation matters economically, too. In 1917, the U.S. Bureau of Animal Industry began the National Tuberculosis Eradication Program due to human and livestock concerns regarding bovine tuberculosis, starting as strictly a cattle program before eventually including both bison and farmed cervids. APHIS and State animal health agencies collaborate with U.S. livestock producers to administer the National Tuberculosis Eradication Program, which has nearly eradicated tuberculosis from the nation’s livestock population since its inception. Bovine TB is distinct from avian tuberculosis, a different mycobacterial disease that affects poultry and wild birds; you can read more about that separate condition in this avian tuberculosis overview.
Pro Tip: Even though bovine TB is rare in U.S. cattle today, testing rules stay in place because interstate and international trade partners require proof of disease-free status before accepting animals or animal products.
New Jersey’s TB Classification Status and Risk Zones
New Jersey currently carries the top federal classification for bovine TB. New Jersey is currently free of TB, according to a New Jersey Department of Environmental Protection wildlife health fact sheet. This designation places the state in the USDA’s “accredited-free” tier, the highest of four possible classifications under federal rule.
The federal system, laid out in 9 CFR Part 77, ranks states or zones from least to most restrictive:
- Accredited-free — zero percent prevalence, meaning no finding of tuberculosis in any cattle, bison, or goat herd in the state or zone
- Modified accredited advanced — low but nonzero prevalence, with all cattle or bison 18 months and older tested during herd accreditation
- Modified accredited — higher prevalence tier requiring all cattle or bison 12 months and older to be tested
- Accreditation preparatory — the most restrictive tier, requiring testing of all cattle and bison regardless of age
Cattle or bison that originate in an accredited-free state or zone may be moved interstate without further restriction under Part 77, which is a major practical benefit of New Jersey’s status. You can check how New Jersey and other states currently rank on the USDA’s Status of Current Eradication Programs page, which APHIS updates as classifications change.
Maintaining accredited-free status is not automatic. Accredited-free state or zone status must be renewed annually, and to qualify for renewal a state must submit an annual report to APHIS certifying compliance with the Uniform Methods and Rules, submitted each year between October 1 and November 30. If two or more affected herds are detected in an accredited-free state or zone within a 48-month period, the state or zone will be removed from the list of accredited-free states and reclassified as modified accredited advanced.
On the wildlife side, New Jersey has an advantage most Midwestern states lack: no known reservoir of TB in free-ranging deer. Tracking the prevalence of TB in wildlife requires recapturing individuals, and there presently are no wild distributions available outside of Michigan, though animals considered probable for infection with M. bovis are tested appropriately to assess spread. New Jersey’s deer herd is still monitored as part of general wildlife-disease surveillance, which connects to broader state wildlife management rules such as those covered in this guide to hunting license requirements in New Jersey.
Who Must Test and Which Animals Are Covered in New Jersey
Testing obligations in New Jersey fall on a mix of parties: herd owners seeking or maintaining accredited-herd status, anyone importing cattle or other regulated livestock into the state, and accredited veterinarians who conduct official tests. The New Jersey Department of Agriculture’s Division of Animal Health oversees this work. In New Jersey, the state veterinarian is the Director of the Division of Animal Health, based at the New Jersey Department of Agriculture in Trenton.
Reporting obligations apply broadly to livestock owners, not just those actively testing. As the owner of a food and fiber animal that can acquire and infect other animals or humans, it is your responsibility to be aware of reportable diseases and report them to the state veterinarian without delay, within 48 hours, either directly or through your veterinarian.
Federal rule ties testing scope to a state’s classification, which is why New Jersey’s accredited-free status keeps routine testing burdens comparatively light:
| State/Zone Classification | Animals Required to Test |
|---|---|
| Accredited-free (New Jersey) | All cattle or bison 24 months of age and older |
| Modified accredited advanced | All cattle or bison 18 months of age and older, as evidenced by loss of central deciduous incisors |
| Modified accredited | All cattle or bison 12 months of age and older |
| Accreditation preparatory | All cattle and bison regardless of age |
Coverage extends beyond cattle. The zero-prevalence standard for accredited-free status also applies to goat herds, and captive cervid operations (deer, elk, and similar species raised for meat, sport, or exhibition) fall under related federal testing rules. New Jersey also requires TB testing for certain non-bovine imports: N.J.A.C. 2:3-9.3 requires tuberculosis testing of llamas and alpacas entering the state.
Worth knowing: New Jersey regulates disease risk across many species beyond cattle, using a similar permit-and-certification framework. Owners juggling multiple animal types often also need to check rules like rabies vaccine requirements for dogs, cats, and ferrets, since mixed farms and rural properties are subject to overlapping state health mandates.
Approved TB Testing Methods in New Jersey
New Jersey follows the federally standardized testing sequence used nationwide under the Uniform Methods and Rules. The process typically starts with a screening test and moves to a confirmatory test only if needed.
- Caudal-fold test (CFT): The caudal-fold test is used as a presumptive diagnostic procedure, and animals classified as suspect must be evaluated further by the comparative cervical test, gamma interferon test, or sent directly to slaughter under permit. A tuberculin injection triggers a delayed hypersensitivity reaction manifested by swelling and induration at the injection site if the animal has been exposed to TB antigens.
- Comparative cervical test (CCT): The CCT test is an official test for retesting cattle or bison tuberculin test suspects, applied only by a state or federal regulatory veterinarian specifically trained in the test, and is never used as a primary test for animals of unknown status. Follow-up testing must be performed within 10 days of the initial caudal-fold injection, or the herd owner must wait 60 days before a follow-up test, and only federal or state regulatory veterinarians with specialized training may conduct it.
- Gamma interferon assay: The bovine interferon gamma assay may be used in cattle herds only, and only when approved by the Chief State Animal Health Official and the Area Veterinarian in Charge as an official test for use in the state.
- DPP serological test (cervids): The Dual Path Platform test is a serological assay used to detect antibodies to bovine tuberculosis in elk, red deer, white-tailed deer, fallow deer, and reindeer, using a blood sample and buffer solution placed on a test strip.
Every step of the process is tightly controlled at the tuberculin and paperwork level. Only VS-approved PPD Bovis tuberculin or a specifically approved PPD may be used, stored in the dark at 39°F to 46°F, never used after the expiration date, and never used if it has been frozen. Veterinarians are legally responsible for properly conducting and evaluating tuberculin test results, and must perform the test themselves rather than delegating it to a technician. Every tested animal must be individually identified by official eartag, with that identification recorded on the test record at injection and confirmed again at observation.
Pro Tip: Because tuberculin testing relies on an active immune response, avoid scheduling a CFT for any animal that is sick or has recently received other vaccinations, since either factor can skew results.
Interstate and Intrastate Movement Testing Requirements in New Jersey
Most owners encounter bovine TB rules not through routine herd testing but through import paperwork. All livestock and poultry moved into New Jersey, except for slaughter, must be accompanied by an official Certificate of Veterinary Inspection approved by the livestock disease control agency of the state of origin. This requirement is codified at N.J.A.C. 2:3-1.2, which provides the requirements for interstate health certificates for livestock and poultry moving into the state.
Cattle face an additional layer of scrutiny under the state’s dedicated import subchapter. N.J.A.C. Subchapter 2, Cattle Importation, covers compliance with importation requirements, definitions, tuberculosis testing, and tuberculosis testing for imported cattle specifically. In practice, that means N.J.A.C. 2:3-2.4 allows the New Jersey Department of Agriculture to require imported cattle to be tested for tuberculosis, even when the animal is coming from another accredited-free state, depending on origin and purpose of the shipment.
Because New Jersey’s own accredited-free status simplifies most interstate movement, the heavier compliance burden usually falls on cattle coming in rather than cattle leaving. Federal rule reinforces this: cattle or bison that originate in an accredited-free state or zone may be moved interstate without further restriction under Part 77, but the receiving state can still set its own entry conditions. Most states have additional animal-entry requirements beyond the baseline federal rule, and these requirements can be obtained from the appropriate state animal health official.
Suspect and reactor animals cannot travel at all under normal channels. Federal rule prohibits the interstate movement of suspect cattle and bison, and of negative cattle or bison in herds containing suspects, except for slaughter, until the tuberculosis status of all suspects has been determined. New Jersey’s Division of Animal Health echoes this in its own guidance to veterinarians and shippers, reminding practitioners to ensure all required negative tests, including TB, brucellosis, and trichomoniasis, are listed on paperwork based on the destination state’s rules.
Important Note: Import and movement requirements are updated periodically by both USDA APHIS and the New Jersey Department of Agriculture. Confirm current CVI and testing requirements directly with the Division of Animal Health before shipping, since interstate rules are subject to change without much public notice.
What Happens When a Suspect or Positive Result Occurs in New Jersey
A suspect classification triggers a defined response chain rather than an immediate quarantine of the whole herd. If the test produces any type of response, the veterinarian must immediately notify the APHIS Veterinary Services Area Office and state animal health officials. Accredited veterinarians must immediately report every suspected or diagnosed bovine TB case promptly to both the Assistant District Director and the State Animal Health Official.
From there, confirmatory testing determines next steps. Live animal testing is performed with a screening test, and if positive, the regulatory veterinarian will conduct a confirmatory test. A positive confirmatory result launches a full epidemiologic investigation. Disclosure of tuberculosis in any herd is followed by a complete epidemiologic investigation, and all cattle or bison in herds from which affected animals originate, plus any that are known to have associated with affected animals, must be tested promptly.
The investigation also reaches beyond the affected herd itself. All livestock herds within a 10-mile radius will be tested within six months of any diagnosis of bovine tuberculosis. This kind of geographic sweep is one reason a single confirmed case can affect neighboring farms even when their own animals test clean.
New Jersey’s accredited-free status can survive a single confirmed case if the response is fast enough. If an affected herd is detected in a state or zone classified as accredited-free, and the herd is depopulated with an epidemiologic investigation completed within 90 days showing no evidence of spread, the state or zone may retain its accredited-free status. That 90-day window is a meaningful incentive for rapid compliance from herd owners.
Quarantine and Herd Depopulation Rules in New Jersey
Once a herd is confirmed affected, officials generally choose between two management paths. When health officials find tuberculosis in a herd, it is managed by either depopulating the herd or by testing and removing reactor animals. Tuberculosis is not treated in livestock, so there is no medical option that avoids removal of infected animals entirely.
While a herd remains under quarantine, milk handling rules tighten immediately. All milk from affected herds must be pasteurized prior to human or animal consumption, milk from TB reactors must not be used for consumption at all, and owners of reactors must be advised to segregate reactors from non-reactors and dispose of their milk safely.
New Jersey’s general import statute also gives the state quarantine authority over animals entering the state that appear diseased or non-compliant, addressed under the state’s provisions covering quarantine of livestock and poultry entering the state and the importation of diseased livestock and poultry. You can review the full importation rule text in the New Jersey Department of Agriculture’s Livestock and Poultry Importation regulation (N.J.A.C. 2:3).
Recovering accredited-free status after a depopulation event takes time, even after the immediate outbreak is resolved. Freedom from tuberculosis in herds requires 2 years from depopulation of the last affected herd in states or zones that were previously accredited free, or 3 years in other states or zones that have depopulated all affected herds. That waiting period exists at the federal level and applies regardless of how quickly New Jersey’s own investigation wraps up.
Penalties for Non-Compliance in New Jersey
Non-compliance in New Jersey carries consequences at both the individual and state level. On the individual side, failing to meet import requirements triggers specific corrective procedures under state rule, addressed directly in N.J.A.C. 2:3-1.10, Procedure on failure to meet importation requirements. Practically, this can mean rejected entry, mandatory quarantine, or forced return of non-compliant animals to their state of origin.
Federal law backs up the state’s authority to restrict movement of diseased animals altogether. Interstate movement of diseased animals and poultry is generally prohibited under 9 CFR Part 71.3, and animals affected with diseases endemic to the United States, including tuberculosis, brucellosis, and several others, cannot be moved to another state except as specifically provided for in the CFR.
Veterinarians face their own professional accountability. All tuberculin tests conducted for any purpose on cattle and bison are official tests and must be reported to cooperative state-federal program officials, and failure to report a tuberculin test is sufficient grounds for removal of an accredited veterinarian’s status. Combined with the 48-hour reportable-disease rule that applies to owners, this creates a layered accountability structure where both the animal’s owner and the certifying veterinarian carry legal exposure for a missed or unreported case.
There is also a slower-moving, state-level penalty that rarely gets discussed: loss of accredited-free status itself. If a state or zone does not implement a required management plan within six months of losing eligibility, the state or zone will lose its accredited-free status and be reclassified as modified accredited advanced. A downgrade like that would tighten testing requirements for every cattle owner in New Jersey, not just the one whose herd triggered the original problem, which is exactly why the Division of Animal Health treats individual compliance failures as a shared risk across the state’s entire cattle industry.
Pro Tip: Keep copies of every Certificate of Veterinary Inspection and test record for at least two years. Federal rule requires states to retain these records, and having your own copies on hand speeds up any compliance check or import dispute.
New Jersey’s bovine tuberculosis rules are lighter than what cattle owners in modified accredited states face, largely because the state has held accredited-free status for years. That status is not permanent, though, and it depends on individual owners meeting import, reporting, and testing obligations correctly and on time. For current forms, county-specific contacts, or clarification on a specific import scenario, the New Jersey Department of Agriculture’s Division of Animal Health remains the most reliable source, since regulations are subject to change and should always be verified directly before you ship, buy, or sell cattle across state lines.