Sep 3, 2026
Arizona Dog Bite Law: Strict Liability, No Breed Consideration, and a Provocation Defence
Arizona's bite statute is strict liability like Florida's and California's, but it adds two things neither state has: a mandatory contact-information duty and a statutory ban on considering a dog's breed.
Tucson, Arizona9 min readPet Care & Services
Arizona holds a dog owner strictly liable for a bite, and it goes further than most states in one specific way: state law bans breed from ever entering a liability finding, in court or anywhere else. This guide covers the statute in full, exactly as printed, and what it does and does not protect you from.
The statutes at a glance
Here is each Arizona statute quoted in this guide and what it does.
| Statute | What it does |
|---|---|
| ARS 11-1025(A) | Makes an owner strictly liable for a bite |
| ARS 11-1025(B) | Requires the owner to give contact information at the scene |
| ARS 11-1025(C) | Bars breed from any liability finding |
| ARS 11-1025(D) and (E) | Carves out police and military work, with a bystander limit |
| ARS 11-1020 | Covers injury or property damage by a dog at large |
| ARS 11-1027 | Gives an owner a provocation defence |
| ARS 11-1014 | Sets quarantine and immediate reporting after a bite |
The core liability rule
Verbatim, Arizona Revised Statutes 11-1025(A): "The owner of a dog that bites a person when the person is in or on a public place or lawfully in or on a private place, including the property of the owner of the dog, is liable for damages suffered by the person bitten, regardless of the former viciousness of the dog or the owner's knowledge of its viciousness."
"Regardless of the former viciousness of the dog" is the strict liability language. A dog with a spotless history offers its owner no defence if it bites someone lawfully present. This puts Arizona in the same family as Florida's 767.04, quoted in our Florida dog bite law guide from the Miami batch, though the two statutes diverge in what protections they add on top of strict liability.
The mandatory contact-information duty
Arizona adds a requirement not found in Florida's statute. Verbatim, 11-1025(B): "A person who owns or is responsible for the care of a dog that bites a person when the person is in or on a public place or lawfully in or on a private place, including the property of the owner of the dog, shall provide the owner's contact information to the person who suffered the dog bite." This is an affirmative duty at the scene, not merely a consequence of a later lawsuit. If your dog bites someone, Arizona law requires you to identify yourself to them directly, at the time.
The breed ban
This is the provision that distinguishes Arizona from every other state's dog bite statute found in this project so far. Verbatim, 11-1025(C): "The breed of a dog may not be considered in findings of facts or conclusions of law entered by a court, administrative law judge, hearing officer, arbitrator or other legal decision-maker regarding whether a dog is aggressive or vicious or has created liability." No court, hearing officer, or arbitrator in Arizona may treat a dog's breed as evidence of aggression or viciousness in a liability determination. Neither Florida's nor California's statutes contain anything equivalent.
The statute defines the terms it uses, verbatim: "'Aggressive' means that a dog has bitten a person or domestic animal without provocation or has a known history of attacking persons or domestic animals without provocation." And: "'Vicious' means that a dog has a propensity to attack, to cause injury to or to otherwise endanger the safety of human beings without provocation or has been found to have any of these traits after a hearing before a court of competent jurisdiction or before a hearing officer pursuant to section 11-1006."
The police and military work carve-out
The statute exempts a narrow category of incidents involving working dogs. Verbatim, 11-1025(D): "This section and section 11-1020 do not allow the bringing of an action for damages against any governmental agency using a dog in military or police work if the bite occurred while the dog was defending itself from a harassing or provoking act or assisting an employee of the agency in any of the following: 1. Apprehending or holding a suspect if the employee had a reasonable suspicion of the suspect's involvement in criminal activity. 2. Investigating a crime or possible crime. 3. Executing a warrant. 4. Defending a peace officer or another person."
That carve-out has its own limit. Verbatim, 11-1025(E): "Subsection D of this section does not apply in any case in which the victim of the bite was not a party to, nor a participant in, nor suspected to be a party to or a participant in, the act that prompted the use of the dog in the military or police work." A bystander with no connection to the incident that prompted the dog's use is not swept into the carve-out.
The separate property-damage statute
A different, broader statute covers damage beyond a bite. Verbatim, ARS 11-1020, in full: "Injury to any person or damage to any property by a dog while at large shall be the full responsibility of the dog owner or person or persons responsible for the dog when such damages were inflicted." Note the "at large" condition here is specific to this statute. The bite-liability statute, 11-1025, does not require the dog to be at large; a bite on the owner's own property is still covered. This property-damage statute does require the "at large" condition to apply.
The provocation defence
Arizona gives an owner one real defence, and it is a narrow one. Verbatim, ARS 11-1027, in full: "Proof of provocation of the attack by the person injured shall be a defense to the action for damages. The issue of provocation shall be determined by whether a reasonable person would expect that the conduct or circumstances would be likely to provoke a dog." The test is objective, not subjective. It does not ask whether the injured person meant to provoke the dog; it asks whether a reasonable person would expect their conduct to provoke one. The statutory definition of "provocation" elsewhere in Arizona law, used consistently across the dangerous-dog code too, is "tormenting, attacking or inciting a dog."
What happens after a bite: quarantine and reporting
Separately from civil liability, Arizona law imposes real procedural obligations after any bite occurs. Verbatim, ARS 11-1014(A): "An unvaccinated dog or cat that bites any person shall be confined and quarantined in a county pound or, on request of and at the expense of the owner, at a veterinary hospital for a period of at least ten days." A vaccinated dog may instead be quarantined at home, "with the consent of and in a manner prescribed by the county enforcement agent."
The reporting duty falls on anyone with knowledge of the incident, not just the owner. Verbatim, 11-1014(E): "If an animal bites any person, the incident shall be reported to the county enforcement agent immediately by any person having direct knowledge." Our dangerous dogs in Tucson guide covers what can happen to the dog after a bite, including the conditions attached to reclaiming an impounded dog.
The statewide "vicious animal" hearing this all connects to
The "hearing before a court of competent jurisdiction or before a hearing officer pursuant to section 11-1006" referenced inside the definition of "vicious" above is not a hypothetical. Verbatim, ARS 11-1006(A): "A county board of supervisors that establishes a civil penalty for violating an animal statute or ordinance may appoint one or more hearing officers to hear and determine such cases." And once a hearing concludes, verbatim: "the hearing officer shall determine whether a violation occurred and, if so, impose civil penalties provided for under section 11-1005, subsection A, paragraph 6, subdivision (b). ... Final decisions of the hearing officer under this subsection are subject to judicial review under title 12, chapter 7, article 6." A dog found "vicious" through this specific hearing process becomes subject to a separate statewide statute authorizing euthanasia, distinct from the ordinary civil bite-liability claim covered above. Our dangerous dogs in Tucson guide covers that mechanism, along with Tucson's own two additional, city-level dangerous-dog tracks that sit on top of this state process.
The state's own statutory definition of a "vicious animal," verbatim, ARS 11-1001(16): "Any animal of the order carnivora that has a propensity to attack, to cause injury to or to otherwise endanger the safety of human beings without provocation or that has been so declared after a hearing before a justice of the peace or a city magistrate." Note this definition covers any carnivore, not only dogs, though dogs are the animal this guide and this series focus on throughout.
How this compares across the corpus
Florida's 767.04 shares the strict-liability core with Arizona's 11-1025 but adds a comparative-negligence reduction and a limited "Bad Dog" sign defence, neither of which Arizona's statute contains. Arizona instead adds the mandatory contact-information duty and the breed ban, neither of which Florida's statute contains. California's Civil Code 3342, covered in our Los Angeles batch, is also strict liability but does not include Arizona's breed-evidence prohibition either. Of the three states verified in this project so far, Arizona is the only one that statutorily forecloses breed from a liability finding.
What this means for Tucson dog parks specifically
Tucson's own dog parks require every dog to wear "collars with a valid dog license," and the posted rules make owners "responsible for the actions of their dogs." Our Tucson dog parks guide covers the full rule set across all fourteen locations, and none of it changes the underlying liability analysis above: a bite at a dog park is analyzed the same way under ARS 11-1025 as a bite anywhere else, park rules notwithstanding.
Frequently asked questions
Is Arizona a strict liability state for dog bites? Yes. ARS 11-1025 makes an owner liable for a bite regardless of the dog's prior history or the owner's knowledge of any viciousness.
Can a dog's breed be used against an owner in an Arizona liability case? No. State law explicitly bars any court, administrative law judge, hearing officer, or arbitrator from considering a dog's breed in a finding about aggression, viciousness, or liability.
What must I do immediately if my dog bites someone in Arizona? Provide your contact information to the person bitten. State law also requires anyone with direct knowledge of a bite to report it to the county enforcement agent immediately.
Does Arizona give a dog owner any defence to a bite claim? Yes, a provocation defence. If a reasonable person would expect the injured person's conduct or circumstances to provoke a dog, that provocation is a defence to the claim.
Does my dog need to be off my property for the bite statute to apply? No. The bite-liability statute applies even on the dog owner's own property, as long as the person bitten was lawfully there. A separate statute covering property damage does require the dog to be "at large."
What happens to my dog after it bites someone in Arizona? An unvaccinated dog faces a mandatory ten-day quarantine at a pound or, at the owner's expense, a veterinary hospital. A vaccinated dog may be quarantined at home with the county enforcement agent's consent.
