Maine dog laws: leash, licensing, bites and breed rules

This is a general summary of Maine state law for dog owners. It is information, not legal advice. Reviewed November 2026.

Leashes and licensing

Maine has a statewide rule on loose dogs. It is unlawful for any dog, licensed or not, to be at large, except when used for hunting (7 M.R.S. 3911). "At large" means off the owner's premises and not under the control of a person whose presence and attention would reasonably control the dog. The statute does not say "leash," so town ordinances often spell out what counts as control.

Licensing is a state requirement carried out locally. A dog 6 months or older must be licensed by January 1 each year, from the municipal clerk, a dog recorder in unorganized territory, an authorized licensing agent or the state's online system (7 M.R.S. 3922). A clerk may not issue a licence without proof of rabies vaccination, unless the state allows a waiver.

Rabies vaccination

An owner must have a dog vaccinated against rabies within 30 days after it turns 3 months old, by a licensed veterinarian, a supervised technician or a certified rabies vaccinator. The dog gets a booster at one year, and then boosters follow the recommended intervals. A veterinarian's written statement of a medical reason can exempt a dog (7 M.R.S. 3916).

For a dog that bites a person, the state's rabies guidance is to confine and observe a healthy owned dog for 10 days, whatever its vaccine status.

Dangerous dogs and bites

A person who is hurt or threatened by a dog, or whose property is damaged, can complain to the sheriff, police or animal control within 30 days, and a court decides whether the dog is a "dangerous dog" or a "nuisance dog" (7 M.R.S. 3952-A). A dangerous dog kills or seriously injures a person or domestic animal off the owner's premises, or makes a reasonable person fear serious injury. A nuisance dog causes lesser injury or property damage. The fine is $250 to $5,000. For a dangerous dog the court may also order a locked 6-foot enclosure, a basket muzzle and short leash off the property, signs, spaying or neutering, microchipping or, for a dog that has killed or seriously injured someone and is a clear threat, euthanasia. For civil claims, if a dog injures a person who is not on the owner's or keeper's premises, the owner or keeper is liable for the damages. The injured person's fault reduces the award only if it exceeds the owner's (7 M.R.S. 3961).

Breed-specific rules

Maine municipalities may adopt stricter animal control rules, but they may not adopt breed-specific ordinances, laws or regulations (7 M.R.S. 3950). Maine's dangerous-dog definitions look at what a dog has done, not its breed.

Tethering and hot cars

No one may tie, tether or restrain an animal in a way that is inhumane or detrimental to its welfare (7 M.R.S. 3972). When tethering is a dog's main means of confinement, meaning more than 12 hours in 24, the dog needs a fully enclosed shelter, swivels at both ends of the tether, a well-fitted collar or harness, and a tether at least 5 times the dog's length from nose to base of tail. Sled and competition dogs have shorter minimums (7 M.R.S. 4015).

Law enforcement officers, humane agents, animal control officers, firefighters and licensed security guards may take reasonably necessary steps to remove an animal from a vehicle when it is in immediate danger from heat, cold or poor ventilation, and are shielded from liability (7 M.R.S. 4019). The section does not mention other people.

Where to check your local rule

Towns and cities often set stricter leash, licence, number-of-dogs and noise rules. Check the town clerk or animal control website or the ordinance code. If a dog has bitten someone or been reported, talk to a lawyer or the animal-control office.