Does Maine Follow the One Bite Rule? What Dog Bite Victims Need to Know

If you have been bitten by a dog in Maine, one of the first questions you may ask is whether the owner can simply claim their dog “never did this before” and walk away without legal consequences. The answer, under Maine law, is no. Maine does not give dog owners that kind of escape route.

Maine moved away from the traditional one bite rule in 2001 and replaced it with a strict liability framework that holds owners and keepers accountable even when their dog has no prior history of aggression. Understanding exactly how that framework applies — and where its limits are — can make a real difference in how you approach a claim.

Key Insight: Maine’s strict liability applies when the bite occurs off the owner’s property. If you were bitten on the owner’s premises, a different standard applies, and you will need to prove negligence to recover damages.

Does Maine Follow the One Bite Rule?

Maine is a strict liability state, and the one bite rule was rejected in 2001. That shift was not a minor procedural change — it fundamentally altered the legal landscape for both dog owners and bite victims across the state.

The one bite rule makes a pet owner accountable for harm inflicted by their pet only if they had prior knowledge of the pet’s tendency to cause such harm. Under that older standard, if a dog had never shown aggression before, the owner was not held responsible for the first bite. Maine’s legislature decided that standard was inadequate protection for victims.

The Maine Legislature enacted the current statute in 2001 through Public Law Chapter 220, replacing the former one bite rule. Under the old rule, a dog owner was liable only if they knew the dog had previously bitten or shown aggressive tendencies. The current law eliminates that requirement for injuries that happen off the owner’s property.

To see how other states handle this differently, you can read about the one bite rule in Missouri, the one bite rule in Tennessee, or the one bite rule in Arizona — all of which take a different approach than Maine.

How the One Bite Rule Works in Maine

Even though Maine has rejected the one bite rule, it helps to understand what the rule actually means so you can appreciate how Maine’s approach differs. In one bite states, dogs are often given a single chance to bite under the assumption that, with the new knowledge their dog may behave dangerously, the owner will put more effort into managing the dog.

Maine does not have this leniency, and even a dog with no prior history of aggressive behavior will be liable for their first bite incident. The state replaced that knowledge-based standard with strict liability under 7 M.R.S. § 3961, which means victims can recover damages without proving the owner was careless or knew the dog posed a danger.

The dog bite statute has an unusual feature: strict liability applies only if the victim is not on the owner’s or keeper’s property when injured. In plain terms, if a dog bites someone on a public sidewalk, at a park, or on someone else’s property, the owner is automatically liable for damages — no proof of negligence required.

If a dog bites someone who is on the owner’s premises, the victim must instead prove the owner was negligent under the general rule in 7 M.R.S. § 3961(1). That subsection states that an animal’s owner or keeper is liable if the animal causes damage “due to negligence of the animal’s owner or keeper.”

Pro Tip: The law covers both “owners” and “keepers.” A keeper is a person in possession or control of a dog or other animal. A person becomes the keeper of a stray domesticated animal, other than a dog or livestock, if they feed that animal for at least 10 consecutive days. Dog walkers, pet sitters, and others temporarily controlling a dog can face liability too.

What Victims Must Prove Under the One Bite Rule in Maine

Because Maine operates under strict liability rather than the one bite rule, the burden of proof for victims bitten off the owner’s property is deliberately low. The victim needs to establish three elements: that the defendant owned or kept the dog, that the dog caused the injury, and that the victim was not on the owner’s or keeper’s premises when the injury occurred. The victim does not need to show that the owner was negligent, that the dog had a history of biting, or that the owner had any reason to suspect the dog was dangerous.

If the bite happened on the owner’s property, the standard is higher. If the victim was bitten while on the owner’s property, standard negligence rules apply. This means the victim must prove the dog owner’s negligence in restraining or controlling their pet.

A dog bite victim in Maine can also recover compensation under the doctrines of negligence, negligence per se, scienter, and intentional tort — giving victims multiple legal avenues depending on the facts of their case. Deciding who is responsible for a dog bite means focusing on the behavior and knowledge of the dog owner, not simply the breed of the dog. Prior knowledge of unprovoked bites or attacks can mean legal liability regardless of the dog’s breed.

For a comparison of how proof requirements differ in other states, see how the one bite rule in New York and the one bite rule in Illinois structure their victim proof requirements.

What Counts as Prior Knowledge in Maine

Maine’s strict liability statute makes prior knowledge legally irrelevant for off-property bites — you do not need to prove the owner knew the dog was dangerous to win your case. That said, prior knowledge still matters in two important situations: when the bite occurred on the owner’s property, and when you pursue a negligence or scienter claim as an alternative legal theory.

Under a scienter (common law) claim, you would need to show the owner had actual knowledge of the dog’s dangerous propensities. Prior knowledge of unprovoked bites or attacks can mean legal liability regardless of the dog’s breed. Evidence that supports prior knowledge in Maine courts can include prior bite incidents, formal complaints filed with animal control, witness statements about the dog’s aggressive behavior, or the owner’s own admissions about the dog’s temperament.

Depending on the circumstances of the dog bite, Maine will either apply the strict liability standard or negligence standard. When negligence is the operative theory — such as for on-property bites — the owner’s awareness of the dog’s tendencies becomes a central issue. A history of growling, lunging, or prior attacks that the owner knew about and failed to address can support a finding that the owner breached their duty of care.

For comparison, states like Colorado and Washington have their own frameworks for how prior knowledge factors into dog bite liability — worth reviewing if you are researching how Maine stacks up.

Exceptions and Defenses to the One Bite Rule in Maine

Maine’s strict liability standard is strong, but it is not absolute. Owners and keepers can raise several defenses that may reduce or eliminate their liability depending on the circumstances of the bite.

• Trespassing: Because Maine’s strict liability applies only when the victim is off the owner’s or keeper’s premises, a trespasser injured on the owner’s property faces the higher burden of proving negligence. Courts have generally been less sympathetic to trespassers, though this defense may carry less weight when the trespasser is a child who does not understand property boundaries.
• Provocation: Dog owners are not responsible for attacks in which the dog was provoked or was protecting the owner. This could include yelling at, hitting, or throwing objects at the dog.
• Comparative fault: Under the comparative fault provision, if the court determines the victim bore more responsibility for the incident than the owner, the victim cannot recover damages for physical injury. This can arise when the victim ignored warning signs, reached into a fenced enclosure, or engaged in behavior that a reasonable person would recognize as risky.
• Assumption of risk: Professionals who work with dogs, such as veterinarians, groomers, and kennel workers, may face an assumption-of-risk defense if their injuries arose from the known risks of their occupation.
• Police K9 units: Police dogs or K9 units are not immediately subject to normal liability rules since they are trained to attack in police operations. Maine also does not consider K9 units to be nuisance or dangerous dogs. However, this does not mean that police dog handlers cannot be sued. If a handler fails to control a K9 unit outside of a police operation and ends up injuring someone, they can be held liable.

The dog bite statute disallows a reduction in damages for comparative negligence unless the victim’s fault exceeds the fault of the dog’s owner or keeper. This is a notably protective provision for victims — minor shared fault on your part will not reduce your recovery unless your share of the blame crosses that threshold.

Important Note: In some cases, there may be a common-sense consideration in finding a dog owner liable. For example, most people know to leave an eating dog or a mother with puppies alone. Courts may weigh this kind of context when evaluating whether the victim’s conduct was reasonable.

Dog Owner Liability Beyond the One Bite Rule in Maine

Maine’s liability framework extends well beyond a single statutory claim. Maine recognizes different types of claims arising from dog bites, including negligence, strict liability, and statutory liability. Each type of claim requires different proof, and the defenses available to the dog owner or keeper differ depending on the type of claim.

Liability can also reach beyond the registered owner of the dog. In most cases, the dog’s owner is legally responsible for injuries their animal causes, even if the dog had no prior history of aggression. If a landlord knowingly allowed a dangerous dog to remain on their property, they may share liability. If a person in charge of a dog at the time of an attack failed to control it, they could also be responsible.

Maine’s dangerous dog law, established by Maine Revised Statutes Section 3952-A, takes the question of liability a step further. Dogs who meet certain conditions will be classified as dangerous by the state, meaning the owner may face additional consequences should the animal cause harm to another person. A dog who bites someone who is not trespassing on the owner’s property and who either causes an injury or instills a fear of assault in the victim may be considered dangerous by the state.

Once a dangerous dog designation is made, courts have broad authority over the outcome. Courts can order the owner or keeper to obtain a minimum of $100,000 in liability insurance for the life of the dog, and to have the dog evaluated by a certified canine behaviorist or certified dog trainer and to attend dog training classes. If the owner fails to follow the court’s decision, they will be held in contempt, while their dog will be humanely euthanized.

In Maine, individuals have six years from the date of the dog attack or bite to file a legal claim. Minors may have extended filing deadlines, as the clock may not begin running until they reach the age of majority. For a fuller look at what happens to the dog and the owner after a bite incident, see this guide on what happens if a dog bites someone in Maine.

You can also compare how liability extends in other strict liability states by reading about the one bite rule in Michigan, the one bite rule in Florida, and the one bite rule in New Jersey.

What to Do After a Dog Bite in Maine

The steps you take in the hours and days after a dog bite directly affect your ability to recover compensation under Maine law. Acting quickly and methodically protects both your health and your legal claim.

1. Seek medical attention immediately. Even minor bites can lead to infections and complications. Documenting your injuries through medical records also creates a paper trail that is essential to your claim.
2. Identify the dog and its owner. Obtain contact information from the dog’s owner and check for rabies vaccinations. If the owner is not present, ask witnesses for any details they observed.
3. Report the incident. File a report with local animal control or law enforcement. This creates an official record and may trigger an investigation under Maine’s dangerous dog statutes.
4. Document your injuries. Take photos of the injury, the location, and any evidence showing the dog was off-leash. Photographs taken immediately after the incident carry significant weight in civil proceedings.
5. Track all expenses and losses. Injured individuals can pursue compensation for medical treatment including surgery and physical therapy, as well as pain and suffering. Keep receipts, billing statements, and records of any missed work.
6. Consult a personal injury attorney. Maine law holds dog owners responsible for the harm their animals cause, but filing a personal injury claim is not always straightforward. Liability disputes, insurance company pushback, and legal loopholes can make it difficult for victims to get the compensation they deserve.

Pro Tip: Maine’s statute of limitations gives you six years to file a claim, but waiting too long can weaken your case. Witness memories fade, evidence disappears, and insurance companies become harder to negotiate with over time. Consulting an attorney early preserves your options.

Dog attack victims can still file suit as long as their share of the liability is less than 50%. Even if you believe you may have contributed to the incident in some way, that does not automatically bar your claim under Maine law — it depends on how the fault is apportioned.

If you are interested in how dog bite laws compare across the country, explore our coverage of the one bite rule in Minnesota, the one bite rule in Wisconsin, and the one bite rule in North Carolina for additional context. Maine’s approach — firm strict liability with a clear geographic distinction — is among the more protective frameworks in the country for bite victims.