Unvaccinated Dog Bite Laws in Tennessee: Quarantine, Liability, and Fines Explained

A dog bite from an unvaccinated animal triggers a different legal chain of events than most Tennessee owners realize. State law does not simply issue a warning and move on; it activates specific quarantine rules, reporting duties, and financial exposure the moment the bite is confirmed. Understanding unvaccinated dog bite laws in Tennessee before an incident happens can mean the difference between a routine 10-day home observation and a much harsher outcome for both the dog and its owner.

This guide walks through what Tennessee law actually requires after a bite, who pays for medical treatment, and when a dog can be classified as dangerous or even ordered destroyed. The rules differ depending on where the bite happened, whether the dog has ever been vaccinated, and how the animal behaves during the mandatory observation period.

Important Note: This article summarizes Tennessee statutes and public health guidance for general education. It is not legal or medical advice. If you or your dog is involved in a bite incident, contact a licensed Tennessee attorney or your local health department for guidance specific to your situation.

What Happens If an Unvaccinated Dog Bites Someone in Tennessee

Tennessee law makes rabies vaccination mandatory, not optional. It is unlawful for any person to own, keep or harbor any dog or cat six (6) months of age or older that has not been vaccinated against rabies as required by this chapter. Owners can begin vaccinating earlier, but Tennessee law makes it illegal to keep any dog six months or older that has not been vaccinated against rabies, though dogs can be vaccinated as early as three months.

When the biting dog turns out to be unvaccinated, the health department response depends heavily on the dog’s own exposure history rather than the victim’s injury alone. A dog with no known rabies risk and no vaccination on file is treated differently than one that was recently exposed to a rabid or suspected-rabid animal. You can review the broader framework in our Tennessee dog bite laws overview, which covers liability rules that apply regardless of vaccination status.

Situation	Vaccinated Dog	Unvaccinated Dog
Healthy dog bites a person	10-day observation period	10-day observation period (same requirement)
Dog exposed to a confirmed/suspected rabid animal	Booster and monitoring, per veterinarian	Euthanasia or strict isolation for 4 to 6 months, at owner’s expense
Vaccinating during quarantine	Not applicable	Not permitted; could mask early rabies symptoms

If a healthy unvaccinated pet bites a person, there will only be a 10-day observation period required, the same as for vaccinated animals. The bigger legal exposure for an unvaccinated dog owner comes later, if that same dog is later found to have been exposed to rabies itself, or if the bite victim pursues a civil claim.

Quarantine and Observation Requirements After a Dog Bite

Tennessee’s rabies statute gives health authorities broad discretion over how a biting animal is confined. If any animal has bitten any person, is suspected of having bitten any person or is for any reason suspected of being infected with rabies, the animal may be required to be placed under an observation period either by confinement or by quarantine for a period of time deemed necessary by the commissioner or rules of the department. In practice, that period is almost always 10 days for a dog that appears healthy at the time of the bite.

The animal causing a bite injury to a person is required to be quarantined for 10 days. This rule applies whether or not the dog has ever received a rabies shot. One detail surprises many owners: you should not vaccinate the animal prior to beginning the 10-day confinement, because an adverse reaction to the vaccine could be confused with early signs of rabies and could result in a decision to euthanize and test.

Pro Tip: Do not rush to the vet for a rabies shot the moment your dog bites someone. Call animal control or your local health department first to confirm how the observation period should proceed in your county.

If the biting animal is a wild carnivore rather than a pet, the process looks completely different. If a person is bitten by a wild carnivore such as a raccoon, skunk, fox, or a bat, the animal should be killed and tested for rabies, if possible. Handlers are cautioned to be careful not to destroy the head during that process. Wildlife-related exposures often overlap with local wildlife regulations, which you can review in our nuisance wildlife laws in Tennessee guide.

Also note that Tennessee has no veterinary exemption from the vaccination mandate. At this time, Tennessee has no legal provision that allows veterinarians to exempt, or waiver, the rabies vaccination requirement for a domestic dog or cat. Even a dog with a documented medical reason for skipping the shot is still legally unvaccinated in the eyes of the state.

Reporting a Dog Bite to Animal Control or Public Health

Bite reporting in Tennessee is not optional, and it typically starts at the county level. Health department offices investigate all reported suspect animal bites and scratches, and the animal is placed under quarantine for observation for 10 days following the exposure. Waiting to report, or hoping the incident goes unnoticed, only increases legal risk for the owner.

Local authorities generally expect the report to happen quickly after the incident. Local Tennessee authorities generally require reporting a bite, and that report often triggers a standard 10-day quarantine or at-home observation for rabies, with officials guiding the exact process in your county. If your dog was off-leash or otherwise not under control when the bite happened, the report can also intersect with local dog leash laws in Tennessee, since running-at-large violations carry their own separate penalties.

Failing to have proof of current licensing or vaccination on file when animal control responds compounds the problem. Failure to license and vaccinate your dog or cat could result in a citation to appear in General Sessions Court, and result in fines. Because county health departments often add stricter documentation requirements on top of the state baseline, confirming your specific county’s reporting process before an incident occurs is worth the extra effort.

Owner Civil Liability for Dog Bite Injuries

Tennessee uses a mixed liability system rather than a strict one-bite rule, and where the bite happens changes everything. Under the Dianna Acklen Act, codified at Tenn. Code Ann. § 44-8-413, a dog owner may be held liable regardless of whether the dog has shown any dangerous propensities or whether the owner knew or should have known of those propensities, if the owner failed to keep the dog under reasonable control or the dog was running at large. This is the strict liability standard, and it applies to bites in public places or on someone else’s property where the victim had permission to be.

The calculus flips on the dog owner’s own residential property. If a dog causes damage to a person while the person is on residential, farm, or other noncommercial property, and the dog’s owner is the owner of the property, the claimant must establish that the dog’s owner knew or should have known of the dog’s dangerous propensities. This “residential exclusion” functions as a traditional one-bite rule, which matters a great deal for owners dealing with a neighbor’s claim; our neighbor’s dog on my property laws in Tennessee guide breaks down how that plays out when the bite happens at home.

Vaccination status itself isn’t a defense to liability, but it does affect how a case unfolds. Tennessee law also gives owners specific defenses even under strict liability. Tennessee’s strict liability statute exempts an owner from responsibility if the dog was securely confined when the injury occurred, if the injured person was trespassing, if the dog was protecting its owner or another innocent person, or if the dog was provoked or harassed. Victims also face a tight deadline: Tennessee uses the same one-year deadline for dog-injury cases as it does for other personal injury claims, and courts will almost certainly dismiss a case filed after that window closes.

Who Pays for Medical Care and Rabies PEP After a Bite

Immediately after a bite, the victim’s own health insurance typically covers emergency treatment and any recommended rabies post-exposure prophylaxis, since Tennessee has no state-run fund that pays those bills upfront. Recovery of those costs from the dog owner comes later, through a civil claim or an insurance settlement rather than at the point of care.

Homeowner’s and renter’s insurance policies are usually the practical source of compensation once liability is established. Documenting the incident thoroughly helps: if the dog’s owner is present, ask for their homeowner’s or renter’s insurance information, since this may be the source of compensation for injuries, and gathering it early helps build a stronger case. Because Tennessee’s strict liability rule applies in public places without requiring proof of the dog’s history, victims bitten in a park or on a sidewalk generally have an easier path to recovering medical costs than those bitten on the owner’s own residential property.

Key Insight: Economic damages in a Tennessee dog bite claim, including medical bills, lost wages, and future treatment costs, carry no statutory cap. Noneconomic damages such as pain and suffering are capped, so keeping detailed medical records strengthens the economic portion of any claim.

Owners facing a rabies PEP reimbursement demand should know that the exposed person’s out-of-pocket costs can be substantial, and that unvaccinated dogs create the highest-risk exposure scenario for post-exposure treatment recommendations from local health officials.

Fines and Criminal Penalties for Unvaccinated Dog Bites

Beyond civil claims, Tennessee attaches criminal penalties to dogs that cause injury while running at large, and the charges scale with the harm caused. A violation is a Class A misdemeanor punishable by fine only if the dog running at large causes bodily injury to another. The exposure increases sharply from there: a violation is a Class E felony if the dog running at large causes serious bodily injury, and a violation is a Class D felony if the dog running at large causes the death of another.

Penalties escalate further for dogs with a documented history of aggression. Harsher punishment applies if the dog was trained to fight, attack, or kill, or if the owner knew of the dog’s dangerous nature and it had previously bitten someone resulting in serious bodily injury or death. Courts also have the authority to order financial restitution on top of criminal fines: a person convicted under this section must be ordered by the court to make full restitution for all damages arising from the offense, including incidental and consequential damages.

Failing to comply with the underlying rabies vaccination mandate carries its own separate fine exposure at the local level, independent of any bite. Municipalities that enforce leash requirements, such as those detailed in our leash laws in Tennessee guide, often stack a leash citation on top of any bite-related charge when the dog was off-leash at the time.

Dangerous or Vicious Dog Designation After a Bite

A single bite incident can trigger a formal dangerous-dog classification under Tennessee’s criminal code. A dog can be classified this way when, unprovoked and off the property of its owner or keeper, it inflicts a bite causing bodily injury to a person or domestic animal. Tennessee draws a distinction between two tiers of risk rather than treating every incident the same way.

Tennessee law distinguishes between potentially vicious dogs and vicious dogs, and a dog may be classified as potentially vicious if it has bitten a person or domestic animal without provocation and off the owner’s property, causing bodily injury. Once a dog receives either designation, local ordinances frequently impose new obligations on the owner. Owners of dogs designated as dangerous or vicious may be required by local ordinances to post clearly visible warning signs on their property.

The most severe cases can lead to a court-ordered destruction, separate from the rabies quarantine process. Under Tennessee law, any dog that attacks a human and causes death or serious bodily injury may be destroyed by order of a general sessions court judge, with the district attorney filing the petition and the owner having five days after receiving notice to appear and show cause why the dog should not be destroyed. That process exists independently from any rabies-related euthanasia decision, and applies whether the dog was vaccinated or not. For comparison, other states approach dangerous-dog classification differently; our Georgia dog bite laws guide covers a jurisdiction with its own distinct escalation process.

Euthanasia and Rabies Testing When Vaccination Status Is Unknown

When a dog’s vaccination history is unclear and it bites a person or is exposed to a potentially rabid animal, Tennessee’s decision tree becomes far less forgiving than the standard 10-day observation. If an unvaccinated domestic animal is exposed to a confirmed or suspected rabid animal, two options are available: immediate euthanasia, or, if the owner declines euthanasia, strict isolation.

That isolation period is significant and expensive. If the pet is exposed to rabies or a rabies reservoir species, it must be either euthanized or strictly isolated for four to six months, at the owner’s expense. The Tennessee Department of Health’s own guidance confirms the same outcome: if the pet is exposed to a rabid animal, it must then either be euthanized or strictly isolated for six months.

Common Mistake: Assuming a dog with an unknown vaccination history gets the same lenient 10-day observation as a fully vaccinated pet. That leniency only applies when the dog itself has no known rabies exposure; an exposed, unvaccinated dog faces euthanasia or months of costly isolation instead.

Because wild rabies-vector species like raccoons, skunks, foxes, and bats drive most of these exposure scenarios in Tennessee, owners in rural or wooded areas face elevated risk simply from where they live. Reviewing local coyote hunting laws in Tennessee can offer useful context on managing wildlife encounters that put unvaccinated pets at risk in the first place. Keeping vaccinations current remains the simplest way to avoid this entire decision tree, since a currently vaccinated dog exposed to a rabid animal typically only needs a booster and a period of monitoring rather than isolation or destruction.

Tennessee’s patchwork of state statutes and county-level enforcement means the exact process can vary depending on where you live, whether you’re in Nashville, Memphis, or a rural county with fewer animal control resources. Owners researching how neighboring states handle similar situations may find it useful to compare approaches, such as those outlined in our Indiana dog bite laws and Colorado dog bite laws guides. Whatever county you’re in, the fastest way to avoid the harshest outcomes under Tennessee’s unvaccinated dog bite laws is straightforward: keep rabies vaccinations current, report any bite promptly, and follow the observation instructions your local health department provides.