New Mexico Dog Bite Laws: Liability and Victim Rights

New Mexico holds dog owners liable under two common law theories rather than a strict liability statute: the scienter rule, codified in Uniform Jury Instruction 13-506, requires proof the owner knew of the dog's vicious tendencies, while negligence allows recovery even without that prior knowledge.

Estimate your claim: Use our free New Mexico Dog Bite Settlement Calculator to see a rough settlement range based on the medical bills, the bite location, the victim's age, and New Mexico's liability rule.

How New Mexico Handles Dog Bite Liability

New Mexico does not have a specific dog bite statute that imposes automatic liability on dog owners. Instead, the state relies on two common law theories to determine when a dog owner must pay for injuries their animal causes: the scienter (one-bite) rule and general negligence.

This dual-track system means that victims have more than one path to recover compensation. Understanding each theory and how they work together is critical for anyone bitten by a dog in New Mexico.

The One-Bite Rule (Scienter)

The primary basis for dog bite liability in New Mexico is the scienter cause of action. "Scienter" is a Latin term meaning "knowledge." Under this rule, a dog owner is liable for bite injuries if the owner knew, or should have known, that the dog was vicious or had a tendency to be vicious.

New Mexico's Uniform Jury Instruction (UJI 13-506) codifies this standard. It states that an owner of a dog is liable for damages proximately caused by the dog if the owner knew, or should have known, of the dog's vicious tendencies or natural inclination to be vicious.

What Counts as Prior Knowledge

A victim does not need to prove the dog previously bit someone. Evidence that the owner knew of dangerous tendencies can include:

• Previous lunging, snapping, or aggressive behavior toward people or animals
• Complaints from neighbors or visitors about the dog's behavior
• The owner keeping the dog restrained with heavy chains or behind special fencing
• Warning signs posted on the property about the dog
• Prior reports to animal control about the dog

Once prior knowledge is established, the owner faces strict liability for the resulting injuries. The victim does not need to prove the owner was careless in addition to having knowledge.

Negligence as an Alternative Claim

Even when a dog owner had no knowledge of their dog's dangerous propensities, a victim can still recover damages through a negligence claim. Under this theory, a dog owner is liable if they failed to use reasonable care to prevent a foreseeable bite.

Examples of negligence that can support a claim include:

• Allowing a dog to roam without a leash in violation of a local ordinance
• Failing to secure a gate or fence that the dog escaped through
• Leaving a dog unattended in a public area
• Allowing children to interact with an unfamiliar dog without supervision
• Failing to follow veterinary recommendations about managing an anxious or reactive dog

This is an important distinction from the scienter claim. A negligence claim focuses on the owner's behavior rather than the dog's history.

Note: Governmental entities in New Mexico cannot be held liable under the scienter theory but can be held liable under negligence. This matters when a government-owned dog or a dog on government property causes injury.

The Dangerous Dog Act (NMSA 77-1A)

New Mexico's Dangerous Dog Act, found at NMSA 77-1A-1 through 77-1A-6, creates a regulatory framework for dogs that have already shown dangerous behavior. The Act establishes two categories of dogs with escalating requirements.

Potentially Dangerous Dogs

Under NMSA 77-1A-2, a "potentially dangerous dog" is one that may reasonably be assumed to pose a threat to public safety based on specific behaviors, including:

• Causing an injury to a person or domestic animal that is less severe than a serious injury
• Chasing or menacing a person or domestic animal in an aggressive manner without provocation

Owners of potentially dangerous dogs must obtain a certificate of registration from their local animal control authority. Registration requirements include paying an annual fee, microchipping the dog, and enrolling the dog in an approved socialization and behavior program.

Dangerous Dogs

A "dangerous dog" under the Act is one that has caused serious injury to a person or domestic animal. Owners of dangerous dogs face stricter requirements:

Criminal Penalties Under the Dangerous Dog Act

NMSA 77-1A-6 establishes criminal penalties for violations:

Prosecution requires proving that the owner knew of the dog's propensity to inflict serious injury or that the dog had previously been found by a court to be dangerous or potentially dangerous.

Vicious Animals Statute (NMSA 77-1-10)

Separate from the Dangerous Dog Act, NMSA 77-1-10 makes it unlawful for any person to keep any animal known to be vicious and liable to attack or injure human beings unless the animal is securely kept to prevent injury. Violations of this section are classified as misdemeanors.

This statute applies broadly to all animals, not just dogs, and provides an additional basis for both criminal charges and civil liability when an owner fails to secure a known vicious animal.

Dog Owner Responsibilities in New Mexico

New Mexico imposes several legal duties on dog owners at both the state and municipal level.

Rabies Vaccination

Under NMSA 77-1-3, every person who owns or keeps a dog over the age of three months must have the dog vaccinated against rabies. The vaccine must be administered by or under the supervision of a licensed veterinarian, who issues a numbered certificate and tag.

Failure to vaccinate is a misdemeanor and may also serve as evidence of negligence in a dog bite case.

Local Leash Laws

New Mexico does not have a statewide leash law, but most municipalities enforce their own. For example, Albuquerque's HEART Ordinance requires all animals in public places to be on a leash shorter than eight feet. Violations carry fines starting at $200 for a first offense, $300 for a second, and $500 for each additional violation.

Violating a local leash law can establish negligence per se in a dog bite case, meaning the violation itself serves as proof of negligent behavior.

Pure Comparative Negligence in New Mexico

New Mexico courts have adopted a pure comparative negligence rule for personal injury claims, including dog bites, dating to Scott v. Rizzo (N.M. 1981). This means a dog bite victim can recover damages even if they were partially at fault for the incident. The victim's recovery is reduced by their percentage of fault. When more than one defendant shares fault, NMSA 41-3A-1 abolishes joint and several liability as the general rule and holds each defendant severally liable only for its own share of the damages. That abolition is not absolute. Subsection C preserves joint and several liability for defendants who acted with the intention of inflicting injury or damage, for defendants whose relationship to each other makes one vicariously liable for the acts of the other, for defendants strictly liable for the manufacture and sale of a defective product, and for situations having a sound basis in public policy. The vicarious liability exception can matter in a dog bite case, because the Dangerous Dog Act defines the owner of a dog to include the parent or guardian of an owner who is under eighteen.

For example, if a court determines that a victim was 20% responsible for provoking the dog and the total damages are $50,000, the victim would recover $40,000. Unlike modified comparative negligence states, New Mexico does not bar recovery at any fault threshold. Even a victim who is 90% at fault can still recover the remaining 10% of damages.

Defenses Available to Dog Owners

Dog owners in New Mexico can raise several defenses to reduce or eliminate liability.

Provocation

If the victim provoked the dog through teasing, hitting, tormenting, or other aggressive actions, the owner may avoid liability entirely. The provocation must be sufficient to cause a normally calm dog to bite.

Trespassing

Dog owners generally have reduced or no liability when their dog bites someone who is trespassing on private property. However, this defense may be weaker when the trespasser is a child who may not understand property boundaries.

Assumption of Risk

Professionals who work with dogs, such as veterinarians, groomers, and kennel workers, may be found to have assumed the risk of being bitten. This defense can limit or bar their recovery.

Damages Available to Dog Bite Victims

Dog bite victims in New Mexico can pursue both economic and non-economic damages.

Economic Damages

• Medical bills, including emergency care, surgery, and rehabilitation
• Future medical costs for ongoing treatment or reconstructive surgery
• Lost wages from missed work during recovery
• Loss of future earning capacity
• Property damage

Non-Economic Damages

• Pain and suffering
• Emotional distress and psychological trauma
• Scarring and disfigurement
• Loss of enjoyment of life

New Mexico does not impose a statutory cap on damages in dog bite cases brought against a private dog owner. The full value of both economic and non-economic losses is available to successful claimants.

One important exception applies when the defendant is a governmental entity or a public employee acting within the scope of their duties. Under NMSA 41-4-19, recovery under the Tort Claims Act cannot exceed $300,000 for all past and future medical and medically related expenses arising out of a single occurrence, or $400,000 to any person for all other damages besides real property damage, and the combined total for real property damage and those other damages is limited to $750,000 for a single occurrence. That section also bars any award of punitive or exemplary damages and any pre-judgment interest against a government defendant.

Landlord Liability for Dog Bites

In New Mexico, a landlord can be held liable for injuries caused by a tenant's dog under specific circumstances. Courts have held that a landlord must pay damages if all three conditions are met:

1. The landlord knew, or should have known, that the tenant's dog was vicious
2. The landlord failed to have the dog removed from the property
3. The landlord retained control over the area where the attack occurred

Once a landlord transfers exclusive control of the premises to a tenant, the landlord's liability is generally limited to common areas such as hallways, stairwells, and shared yards. A landlord who knew about a dangerous dog and failed to enforce a lease provision requiring the tenant to remove the animal may face liability.

Statute of Limitations

Under NMSA 37-1-8, dog bite victims in New Mexico have three years from the date of the bite to file a personal injury lawsuit.

Important exceptions to this deadline:

• Minors: The statute of limitations is tolled (paused) until the minor turns 18, then they have one additional year to file
• Government claims: If the dog owner is a government entity, the victim has only two years to file under NMSA § 41-4-15, and must separately provide written notice of the claim within 90 days of the incident under NMSA § 41-4-16
• Discovery rule: In rare cases where the full extent of injuries is not immediately apparent, the clock may start when the victim discovers or reasonably should have discovered the injury

Missing the filing deadline permanently bars the claim in most circumstances.

How to File a Dog Bite Claim in New Mexico

If you have been bitten by a dog in New Mexico, take these steps to protect your legal rights:

• Get medical treatment immediately. Medical records documenting your injuries become critical evidence.
• Report the bite to local animal control. This creates an official record and may trigger a dangerous dog investigation.
• File a police report. Law enforcement documentation supports both civil and criminal proceedings.
• Photograph your injuries. Take pictures of the wound at the scene, during treatment, and throughout the healing process.
• Identify witnesses. Collect contact information from anyone who saw the attack.
• Gather the dog owner's information. Record their name, address, phone number, and homeowner's insurance details.
• Preserve physical evidence. Keep torn or bloodied clothing and any other items damaged in the attack.
• Request the dog's vaccination records. This is important for determining rabies risk and can also reveal prior incidents.

Breed-Specific Legislation in New Mexico

Some New Mexico municipalities have enacted breed-specific legislation (BSL) that restricts or bans certain dog breeds. However, the trend across the state has been moving away from breed-specific bans in favor of behavior-based dangerous dog laws. Check your local ordinances for specific restrictions in your area.

The Dangerous Dog Act itself is breed-neutral and focuses on individual dog behavior rather than breed classification.

More New Mexico Laws

• New Mexico Slip and Fall Laws
• New Mexico Statute of Limitations