What state law in Montana says about pets — in plain English, with a link to each source.
Last verified November 3, 2026
🚗 Hot cars
No specific state law
Montana has no state law specifically about animals left in parked vehicles. Leaving a pet in a dangerous car can still be prosecuted as animal cruelty, and some cities have their own ordinances — if you see an animal in distress, call 911.
Montana has no statewide law requiring pets to be vaccinated against rabies. Many cities and counties require it, and vets strongly recommend it — check your local ordinance.
Montana has no state law stopping cities and counties from banning or restricting dogs by breed. Whether a breed is restricted depends on where you live — check your city or county ordinances before moving with a pit bull–type or other targeted breed.
Montana’s strict liability covers bites in incorporated cities and towns only; elsewhere negligence rules apply.
What it covers: Bite to person
Where: A public place or lawfully on or in a private place, including the property of the owner of the dog, located within an incorporated city or town
Defences: Provocation Trespassing (law requires victim be in a place lawfully) Outside incorporated city or town
Montana has no specific provision for pets in protective orders. Judges can often add other conditions they consider necessary, so ask the court or a domestic-violence advocate to include your pet.
Montana has no statewide ban on pet stores selling dogs and cats. Some cities and counties have their own bans — check locally before buying from a store, and ask where the puppy came from.
Usually not. Dogs over 3 months travelling with their owner need only proof of rabies vaccination; puppies under 3 months, breeding dogs and dogs changing owner need a health certificate and an import permit.
As summarised by the AKC (March 2023) — confirm with the state veterinarian before you travel:
CVI generally not required.
Dogs over 3 months of age and traveling with their owners from a non-rabies quarantine area require only proof of rabies vaccination.
Dogs under 3 months of age, imported for breeding or destined for a change of ownership must have a CVI, a current rabies vaccination (if the dog is old enough to meet vaccination eligibility), and an import permit. Animals from quarantine areas need special permission from the state Department of Livestock.
Import permits are required for companion animals originating from rabies or Foot and Mouth Disease quarantine areas.
Montana has no statewide dog licensing requirement — counties and cities set their own. Most require a licence with proof of rabies vaccination, so check with your local animal services or clerk.
Montana has no statewide leash law. A dog running at large without a current licence tag may be seized and impounded, and cities and towns may restrict or prohibit dogs running at large.