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

This is a general summary of Oregon state law about dogs. It is information, not legal advice. Reviewed November 2026.

Leashes and licensing

Oregon does not have one statewide leash law. Instead, a county or city may prohibit dogs from running at large by ordinance or a vote. A dog runs at large when it is outside premises the keeper can lawfully close off, or is not with and under the control of its keeper. Where a prohibition is in force, a keeper whose dog is loose commits a Class B violation.

Licensing is also tied to local programs. In a county or city with a dog control program, a keeper must license a dog by six months old or when it has permanent canine teeth, whichever comes first, and the licence is renewed yearly. State law sets a minimum fee, with lower fees for spayed or neutered dogs, and a county cannot issue a licence without proof of rabies inoculation.

Rabies vaccination

A dog with permanent canine teeth or six months old or older must be inoculated against rabies, unless an Oregon Health Authority or Department of Agriculture rule exempts it. A veterinarian gives the owner a certificate, and the county issues a tag that the dog wears when off the premises. An animal bite that breaks the skin must be reported to the local health officer. A dog impounded for biting a person must be held at least 10 days before it can be redeemed or destroyed, so it can be watched for rabies.

Dangerous dogs and bites

Oregon describes dangerous dogs by behavior. A potentially dangerous dog is one that, unprovoked and away from its keeper's premises, menaces a person; that injures a person less seriously; or that injures or kills livestock or another domestic animal. Keeping one is a public nuisance. A dangerous dog is one that, unprovoked, seriously injures or kills a person, that repeats potentially dangerous behavior after a nuisance finding, or that is used as a weapon in a crime. A keeper who with criminal negligence fails to prevent that behavior commits the crime of maintaining a dangerous dog, and a county or court can order a dog killed after weighing factors such as the bite's severity and the keeper's history.

On civil liability, the strict-liability rule applies after a court has found a dog potentially dangerous: if it then injures a person or damages property, the keeper owes economic damages, unless the injured person was provoking the dog, assaulting the keeper or trespassing.

Breed-specific rules

Oregon's dog statutes do not classify dogs by breed. Cities and counties keep authority to adopt their own dog-control ordinances.

Tethering and hot cars

Unlawful tethering is a Class B violation. It covers a tether that is not a reasonable length or lets the animal tangle dangerously, a collar that pinches or chokes, tethering for more than 10 hours in 24, or more than 15 hours on a running line, trolley or pulley. Exceptions include a dog tethered in its owner's presence, and dogs kept for herding, livestock protection or sledding.

Oregon also protects rescuers. A person who enters a locked vehicle to remove a child or domestic animal in imminent danger is not criminally or civilly liable if they first confirm the animal cannot get out, act in good faith, call law enforcement or emergency services, use no more force than needed and stay nearby until help arrives.

Intentionally or knowingly torturing an animal, or causing it serious injury or death, is aggravated animal abuse, a Class C felony.

Where to check your local rule

Cities and counties often have stricter leash, licence, number-of-dogs and breed rules. Check your city or county animal control website or ordinance code. If your dog has bitten someone or been reported, talk to a lawyer or the animal-control office.