Maine Dog Bite Laws: Liability, Dangerous Dog Rules, and Insurance
What Maine law expects from you as a dog owner — who pays after a bite, how a dog gets designated dangerous, and whether the state requires liability insurance. Every citation links to the official statute.
This page is not legal advice. It summarizes Maine state law as of 2026-07-13. Laws change and cities add their own rules — personally check the official statutes linked below, and talk to a licensed Maine attorney before acting on anything that matters.
| Liability rule | Strict liability |
|---|---|
| Bite statute | 7 M.R.S. § 3961(2) (dog injuries to people off the owner's premises); § 3961(1) covers negligence-based liability for other animal damage |
| Dangerous-dog statute | 7 M.R.S. §§ 3907(12-D), 3907(20-A), 3952-A, 3954 (Chapter 727, Dangerous Dogs and Nuisance Dogs) |
| Insurance requirement | $100,000 — conditional |
| When insurance is required | court-ordered, at the court's discretion, only after a dog has been adjudicated a "dangerous dog" or a "nuisance dog" following a hearing under 7 M.R.S. § 3952-A(2)(I) (the nuisance-dog finding in § 3952-A(3) incorporates paragraphs F-K of subsection 2, and insurance is paragraph I); not automatic and not required for every dangerous-dog or nuisance-dog finding |
Who pays when a dog bites — the Maine rule
Maine holds dog owners to strict liability for bites, set by statute rather than case law (7 M.R.S. § 3961). If your dog injures someone off your property, you are liable for the damages even if it never bit anyone before and you had no reason to think it was dangerous. The injured person does not have to prove you were careless, and Maine has no statutory "Bad Dog" sign defense. This replaces the older "one bite" approach, but only off your property; what happens when someone is bitten on your own premises is not spelled out in the law.
A court cannot reduce your liability for the injured person's own fault unless that fault outweighs yours; the statute does not spell out what happens once that threshold is crossed (§ 3961(2)). The statute sets no separate trespassing or provocation defense.
How a dog gets designated dangerous
Maine's dangerous- and nuisance-dog system runs through the courts, not animal control alone. Someone bitten, threatened, or property-damaged by a dog has 30 days to file a written complaint with the sheriff, police, or animal control, who investigate and can bring the case to a hearing (7 M.R.S. § 3952-A).
A court can find a dog dangerous if it kills or seriously injures a person or another animal who was not trespassing, makes a reasonable person off the property fear serious injury, or injures someone after already being found a nuisance dog. A lesser nuisance-dog finding covers less severe injury, a reasonable fear of minor injury, or property damage (7 M.R.S. § 3907).
After a dangerous-dog finding, the court imposes a fine and can order any combination of: euthanasia, only if the dog killed, maimed, or seriously hurt someone and poses a clear public-safety threat; warning signs at every entry, paid for by you; a locked, six-foot secure enclosure; a basket muzzle and heavy-duty leash off the property; spay or neuter, microchipping, and a behavior evaluation; the liability insurance covered below; and immediate reporting if the dog escapes. A nuisance-dog finding allows a narrower set of these orders, minus euthanasia and signage, and a given dog can be found a nuisance dog only once.
Insurance requirements
Maine does not require dog owners to carry liability insurance simply for owning a dog, or automatically once a dog is classified dangerous. Insurance is one item a court may order, at its discretion, after a dangerous-dog or nuisance-dog finding: a minimum of $100,000 in coverage for the life of the dog (7 M.R.S. § 3952-A(2)(I)). Outside that court order, this page found no statute requiring a bond or policy for any owner.
Towns and cities can add their own stricter animal control rules on top of the state floor.
Worth knowing
- Maine bars towns and cities from passing breed-specific ordinances, though they can pass stricter, breed-neutral rules (7 M.R.S. § 3950). Maine also bars any dog from running at large statewide (7 M.R.S. § 3911).
- Ignoring a court order tied to a dangerous- or nuisance-dog finding is contempt of court, and keeping an adjudicated dog carries its own civil fine of $250 to $5,000. Officers can also seek an emergency order to take temporary custody of a dog posing an immediate threat, before the hearing happens.
- This page found no separate rabies-quarantine statute, so confirm quarantine practice locally. It also found 7 M.R.S. § 3955, on leaving the scene after a dog assault causes an injury, by title only, without confirming its full text.
Other states
Rules change at the state line — a dog that is fine at home can put you under a different liability standard on vacation. See the full 50-state table.
General information, not legal advice, current as of 2026-07-13. Statutes get amended and courts reinterpret them — confirm anything that matters with the statute text linked above, your local animal control authority, or a Maine-licensed attorney. Municipal ordinances can add requirements beyond state law.