Bovine Tuberculosis Testing Requirements in Florida: Rules Every Cattle Owner Must Follow
August 17, 2026
Bovine tuberculosis testing requirements in Florida apply to far more than dairy cows headed to auction. Under state and federal rule, nearly every bovine, bison, dairy goat, and captive cervid you own falls under mandatory testing overseen by the Florida Department of Agriculture and Consumer Services (FDACS) and the USDA’s Animal and Plant Health Inspection Service (APHIS).
You might assume a disease this rare would carry light oversight, but bovine tuberculosis testing remains one of the most tightly enforced livestock health programs in the state. Here’s what you need to know about Florida’s TB classification, who must test, which methods are approved, movement rules, and what happens if a suspect or positive result turns up in your herd.
What Is Bovine Tuberculosis and Why It Is Regulated in Florida
Bovine tuberculosis is caused by Mycobacterium bovis, a slow-acting bacterium that produces a chronic, sometimes debilitating disease in cattle and other mammals. According to the APHIS NVAP Reference Guide, bovine tuberculosis is a contagious, infectious, communicable disease of animals and humans caused by Mycobacterium bovis, and it is commonly a chronic, debilitating disease but occasionally may assume an acute, rapidly progressive course. The disease spreads in predictable ways: direct contact, inhalation of droplets expelled from infected lungs, and ingestion of contaminated feed or milk.
Regulators treat bovine TB as both an animal health and public health issue because it is a widespread zoonosis of global magnitude and affects nearly all species of vertebrates. That zoonotic potential is why testing rules trace back more than a century. In 1917, the U.S. Bureau of Animal Industry began the National Tuberculosis Eradication Program due to human and livestock concerns regarding bovine tuberculosis, and the program has since expanded well beyond cattle.
The good news is that the eradication effort worked. The prevalence of tuberculosis in cattle, bison, and captive cervids is extremely low in the United States, with an estimated prevalence of 7 per 1 million cattle screened. Even so, because infected cattle rarely show symptoms, testing remains the primary way anyone finds the disease before it spreads through a herd.
Key Insight: Pasteurization and decades of testing have driven human bovine TB cases down dramatically, but the bacteria can still spread through unpasteurized milk or close contact with infected livestock, which is why testing stays mandatory even at low prevalence levels.
Florida’s TB Classification Status and Risk Zones
Florida currently holds Modified Accredited State status under federal tuberculosis regulations. Per the eCFR listing of modified accredited states, Florida is named among the modified accredited states, alongside Alabama, Georgia, Texas, and dozens of other states. Within the state, there are no separately designated modified accredited zones, meaning the same rules apply statewide rather than varying by county or region.
Modified Accredited status carries a specific prevalence definition: a state or zone qualifies when tuberculosis has been prevalent in less than 0.1 percent of the total number of herds of cattle and bison in the state or zone for the most recent year. That threshold sits below the stricter Modified Accredited Advanced tier, which requires tuberculosis prevalence of less than 0.01 percent of herds for each of the most recent two years.
Your classification tier determines which cattle must be tested during herd accreditation work. The requirements scale by age depending on the state’s status:
| Classification Tier | Prevalence Standard | Cattle/Bison Age Tested |
|---|---|---|
| Accredited-Free | Essentially zero prevalence | 24 months and older |
| Modified Accredited Advanced | Under 0.01% of herds (2-year average) | 18 months and older |
| Modified Accredited (Florida’s status) | Under 0.1% of herds (1-year average) | 12 months and older |
| Accreditation Preparatory | Above modified accredited thresholds | All ages, regardless of age |
In Modified Accredited States or zones, all cattle or bison 12 months of age and older are subject to testing during accreditation or reaccreditation work. If you also manage cervids or exhibit animals near wildlife reservoirs of the disease, movement and testing obligations can overlap with wildlife rules; if you hunt in areas known for M. bovis exposure in deer, check the Florida hunting license requirements for related permitting details.
Who Must Test and Which Animals Are Covered in Florida
Florida casts a wide net when it comes to which animals fall under TB testing rules. Per Florida Administrative Code 5C-7.019, all cattle, bison, dairy goats and cervidae in Florida are subject to testing for tuberculosis. This isn’t optional or triggered only by movement across state lines — it’s a baseline requirement for anyone who owns these species in Florida.
Once the state decides your animals need testing, you don’t get to choose the timeline. Upon receipt of official notice from the department, the owner or custodian is required to present his animals for test as directed. That means FDACS can require you to present animals for testing outside your normal schedule if officials have reason to investigate.
Not every animal in these covered species needs annual testing, however. Some categories are specifically exempted: there are no tuberculosis or brucellosis test requirements for meat type goats or Florida-origin dairy goats, provided they meet the qualifying conditions under the applicable milk ordinance rules. Beef and dairy cattle also see exemptions tied to herd accreditation status, which is covered in more detail in the movement section below.
- Cattle and bison of testing age within Florida’s herds
- Dairy goats, unless specifically exempted as Florida-origin
- Cervidae (deer, elk, and related farmed species) under FDACS herd health plans
- Animals entering Florida that don’t qualify for an exemption on entry
Because tuberculosis testing sits alongside other Florida animal health rules, it’s worth reviewing how your operation handles related disease-control obligations, including the broader rabies vaccine requirements in Florida that apply to other animals you may keep on the same property.
Approved TB Testing Methods in Florida
The caudal fold test (CFT) is the standard first-line screening tool. It works through an intradermal injection of tuberculin, and if an animal is exposed to the antigens present in bovine TB, the injection results in a delayed hypersensitivity reaction that usually begins within 8 to 12 hours and peaks about 72 hours after injection. Only qualified professionals can run this test — veterinarians are legally responsible for properly conducting and evaluating the results of tuberculin tests, so they must perform the test themselves rather than delegate it to a technician.
A positive CFT response doesn’t confirm infection on its own. The caudal-fold test is used as a presumptive diagnostic procedure, and animals classified as suspect must be evaluated further by the comparative cervical (CC) test, gamma interferon test, or sent directly to slaughter under permit. Follow-up testing carries its own strict timeline: only Federal or State regulatory veterinarians who have had specialized training may conduct the follow-up testing, and follow-up CCT testing must be performed within 10 days of the initial caudal-fold injection in cattle and bison, or the herd owner must wait 60 days (90 days for cervidae) before a follow-up CCT can be applied.
The gamma interferon assay offers another confirmatory option, though its use is restricted. The bovine interferon gamma assay may be used in cattle herds only, and only when approved by the Chief State Animal Health Official and AVIC as an official test for use in the State. Beyond these live-animal tests, histopathology, diagnostic bacteriology, and PCR assay of formalin-fixed tissue are all supplemental diagnostic procedures approved for use in the program, typically applied after necropsy or slaughter findings.
Pro Tip: Don’t panic over a single CFT response. These false-positive responses may occur in 1 to 5 percent of tested cattle, and a positive CFT test is a preliminary result that requires additional diagnostic testing before any conclusions are drawn.
| Test | Role | Who May Perform It |
|---|---|---|
| Caudal Fold Test (CFT) | Primary screening test | Accredited veterinarian |
| Comparative Cervical Test (CCT) | Confirms CFT suspects | Trained State or Federal regulatory veterinarian only |
| Gamma Interferon Assay | Alternative confirmatory test, cattle only | State-approved testing personnel |
| PCR / Histopathology / Culture | Supplemental confirmation post-necropsy | Diagnostic laboratory |
Whichever test is used, identification matters as much as the result itself. All cattle and bison tested shall be individually identified by official eartags, and such identification must be recorded in its entirety on the test record at the time of injection and confirmed at the time of observation.
Interstate and Intrastate Movement Testing Requirements in Florida
Moving cattle into Florida triggers a separate set of rules from routine in-state testing. If your animals come from a qualifying source, you may skip testing entirely: beef cattle or bison, six months of age or older, which originate from an accredited tuberculosis-free herd or tuberculosis-free state or area may enter Florida without tuberculosis testing. But that exemption comes with a paperwork requirement — the accredited tuberculosis-free herd number and the date of the last negative herd test within the previous twelve months, or the tuberculosis-free state or area status, must be written on the OCVI.
If your cattle don’t qualify for that exemption, testing is mandatory before entry. All other dairy and beef cattle or bison, six months of age or older, which are not otherwise exempt from negative tuberculosis test requirements, must test negative to an official tuberculosis test within sixty days prior to entry into Florida. Rodeo stock faces its own timeline: rodeo bulls or roping steers, six months of age or older, performing in rodeo events must have a negative test for tuberculosis within twelve months prior to being imported into Florida.
Cattle headed straight to harvest bypass testing altogether, since all cattle or bison consigned directly to a recognized slaughtering establishment may enter Florida without tuberculosis testing. On the opposite end, infected or exposed animals face the tightest restrictions: cattle or bison infected with or exposed to tuberculosis may be imported only if consigned directly to a recognized slaughtering establishment, and such animals must be accompanied by a Permit for Movement of Restricted Animals and a Prior Permission Number.
Regional producers moving cattle between neighboring states get a streamlined option. A Permit for Interstate Movement from USDA Approved Livestock Facility can be issued as a valid interstate movement document for cattle moving between Florida, Alabama, Georgia, or Mississippi. Florida-origin herds that move regularly without changing ownership can also apply for a Commuter Herd Agreement, which is an official document used in lieu of an Official Certificate of Veterinary Inspection, provided all official individual identification requirements and interstate disease testing requirements are met.
Whatever documentation you use, timing matters. For Florida-origin animals, an OCVI is valid for 90 days from the date of issue, or until the expiration date of any required tests, whichever comes first. Before you load animals for transport, double-check your paperwork and hauling setup against the livestock trailer requirements in Florida, since a valid OCVI won’t help if your transport doesn’t meet separate state standards.
- Confirm your herd’s TB-free accreditation status or plan for pre-entry testing within the 60-day window.
- Obtain a completed OCVI listing herd numbers, test dates, or free-status documentation.
- Secure a Prior Permission Number if any animal is infected, exposed, or restricted.
- Match your transport method to Florida’s livestock hauling standards before departure.
- File a Commuter Herd Agreement if cattle move regularly between fixed premises.
Exhibition and rodeo bulls get a narrow carve-out too: bulls entering Florida for exhibition or rodeo are exempt from standard entry testing provided they do not commingle with female cattle and return to their state of origin immediately following the event. If you run or visit a facility that displays livestock to the public, the same exhibition logic shows up in rules for petting zoos in Florida, where animal health documentation gets extra scrutiny.
What Happens When a Suspect or Positive Result Occurs in Florida
A suspect classification sets off a defined chain of events rather than an immediate conclusion. As covered above, animals classified as suspect must be evaluated further by the comparative cervical test, gamma interferon test, or sent directly to slaughter under permit. Time matters here — if the test produces any type of response, you must immediately notify your APHIS-VS Area Office and State animal health officials.
Reporting obligations don’t fall on the owner alone. All 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. That dual reporting chain keeps both state and federal officials informed from the moment a suspect result appears.
Movement freezes the moment a suspect classification is made. No cattle or bison responding to an official tuberculosis test are eligible for interstate movement unless such animals are subsequently classified negative for M. bovis based upon an official CCT test and/or bovine interferon gamma assay. Federal rule backs this up directly: 9 CFR Section 77.17(c) 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.
If a case is ultimately confirmed, the response widens fast. Disclosure of tuberculosis in any herd is followed by a complete epidemiologic investigation, and all cattle and bison in herds from which affected animals originate, along with any known contacts, are tested promptly.
Important Note: A positive screening result is not a diagnosis. Regulatory veterinarians control all confirmatory testing, and only they can classify an animal as a reactor. Producers should coordinate directly with FDACS and their accredited veterinarian rather than acting on a presumptive result alone.
Quarantine and Herd Depopulation Rules in Florida
Florida defines quarantine plainly in its administrative code: quarantine means strict isolation on animals or premises or other defined geographic areas, to prevent the spread of diseases or pests. For TB purposes, that isolation kicks in the moment exposure is confirmed. Herds containing known bovine tuberculosis exposed animals shall be placed under quarantine until the tuberculosis status of the exposed animals has been determined by postmortem examination or by at least one negative test, with the remainder of test-eligible animals in the herd also determined negative.
Traceback investigations move on a fast clock. Herds indicated as the source of slaughter traceback case investigations shall be placed under quarantine within 15 days of notification, and a herd test of all eligible livestock shall be scheduled. Surveillance doesn’t stop at your fence line, either — all livestock herds within a 10-mile radius will be tested within 6 months of any diagnosis of bovine tuberculosis, which means a confirmed case can trigger testing obligations for neighboring producers.
Once tuberculosis is confirmed in a herd, officials have 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, since tuberculosis is not treated in livestock. There’s no veterinary treatment option that resolves the disease in place — removal or elimination of infected animals is the only path back to a clean herd status.
Recovery timelines follow a defined schedule rather than an open-ended quarantine:
- Herds with a history of lesions suggestive of bovine tuberculosis, but not confirmed, must complete two negative annual herd tests after release from quarantine.
- A 90-120 day herd retest is recommended following resolution of an affected herd.
- If any livestock other than captive cervids are included in a newly assembled herd on a premises where a tuberculous herd has been depopulated, the state must apply the same herd test requirements to those animals as it would to cattle and bison.
Penalties for Non-Compliance in Florida
Florida’s authority to require testing, restrict movement, and impose quarantine comes directly from state statute. The rules governing cattle and bison importation cite their legal basis as rulemaking authority under sections 570.07(23), 585.002(4), and 585.08(2) of the Florida Statutes, implementing the law found in sections 570.07(15), 570.36(2), 585.08, 585.145, and 585.16. Those statutes give FDACS the power to enforce testing, documentation, and movement restrictions on any covered animal in the state.
Non-compliance doesn’t just create risk for an individual herd — it can affect the entire state’s disease status. Federal rule spells out the consequence directly for states that fail to control outbreaks: if two or more affected herds are detected within a 48-month period, the state will be removed from its higher accreditation tier and reclassified to a lower one. A downgrade of this kind increases the testing burden on every producer in Florida, not just the herd where the violation occurred, since lower-tier states must test younger animals more frequently.
At the individual level, failing to test, document, or quarantine as required typically results in movement rejection at the point of sale or destination, mandatory quarantine orders, and required retesting before an animal or herd can move again. Animals arriving without a valid OCVI, missing herd status documentation, or lacking a Prior Permission Number for restricted stock can be turned back, held, or subjected to additional testing at the owner’s expense.
Important Note: Specific civil penalties, fines, and misdemeanor classifications for individual violations of Florida’s animal disease control statutes can change and are set under Florida Statutes Chapter 585 and related administrative rules. Contact the FDACS Division of Animal Industry or a licensed accredited veterinarian directly for the current enforcement schedule that applies to your situation. This article is for general information and does not substitute for official regulatory guidance.
If you’re building or expanding a herd in Florida, the safest approach is straightforward: confirm your herd’s accreditation status before you buy or sell, keep OCVI and test paperwork current, and loop in an accredited veterinarian the moment any test comes back as anything other than clearly negative. The Florida Department of Agriculture and Consumer Services’ Division of Animal Industry, Cattle Programs Office, based in Ocala, Florida, remains the primary point of contact for herd status questions, commuter agreements, and testing documentation across the state.