Washington Dangerous Dog Law

What happens right after the bite?

The first step is about rabies, not punishment. When a local health officer learns that a dog has bitten someone, the officer may order the dog confined "in a manner the local health officer considers appropriate" and observed daily for at least ten days. The owner must report any illness. If signs of rabies appear, the officer can order the dog euthanized and tested²⁵. A stray or unwanted dog may be euthanized and tested immediately²⁵.

Washington requires every dog to be vaccinated and revaccinated against rabies²⁵. Rabies in dogs is rare here: the Department of Health counts only five rabid domestic land animals since 1987²⁶. A current vaccination certificate still makes the quarantine easier to manage.

Health care providers must report a bite immediately only when they suspect rabies exposure²⁶.

Two classes: potentially dangerous and dangerous

State law uses two labels²⁰:

• A potentially dangerous dog bites a person or a domestic animal without provocation, chases or approaches people in public "in a menacing fashion", or has a known propensity to attack unprovoked.
• A dangerous dog inflicts severe injury on a person without provocation, kills a domestic animal without provocation off the owner's property, or bites, attacks or endangers people again after the owner was notified it was potentially dangerous. Severe injury means broken bones or disfiguring lacerations requiring multiple sutures or cosmetic surgery.

Potentially dangerous dogs are regulated only by city and county ordinances, so the rules for them vary from place to place²². The state rules below apply to dangerous dogs.

A dog may not be declared dangerous if the person hurt was committing a willful trespass or other tort on the owner's premises, was tormenting, abusing or assaulting the dog, had been seen or reported doing so in the past, or was committing a crime²².

How is a dog declared dangerous?

Many cities and counties have their own notice and appeal procedure, and RCW 16.08.080 lets them keep it²¹. Where a jurisdiction has none, the statute sets a default:

1. Animal control serves notice in person or by regular and certified mail. The notice gives the legal basis, the reasons, the controls that will apply and the owner's appeal rights.
2. The owner may meet with the authority within 15 calendar days of the notice and explain, orally or in writing, why the dog is not dangerous.
3. The authority issues a written order within 15 days after the meeting.
4. The owner may appeal within 20 days of receiving the final order. The appeal goes to the local administrative body if there is one, otherwise to municipal court for a city decision or district court for a county or sheriff decision²¹.

While the appeal is pending, the authority may order the dog confined. If the dog is found dangerous, the owner pays the costs of confinement²¹.

What the owner of a dangerous dog must do

Keeping a dangerous dog anywhere in Washington without a certificate of registration is unlawful²¹. To get one, the owner must show a proper enclosure, posted warning signs (including a symbol for children) and a $250,000 surety bond or liability policy²¹. Off the property, the dog must be muzzled, on a substantial chain or leash, and under the physical restraint of a responsible person²². Local governments may add restrictions or ban dangerous dogs outright²¹.

When can the dog be destroyed?

Animal control must immediately confiscate a dangerous dog that is unregistered, uninsured, not properly enclosed, or outside without restraint. If the problems are not fixed within 20 days of notice, the dog is destroyed, and the owner commits a gross misdemeanor, punishable by up to 364 days in jail and a $5,000 fine^23,31. A dangerous dog that attacks again after its owner's earlier conviction is confiscated, quarantined and destroyed²³.

Criminal charges after a serious attack

RCW 16.08.100(3) reaches owners of any dog, declared dangerous or not. If the dog aggressively attacks and causes severe injury or death, the owner commits a class C felony, punishable by up to five years and a $10,000 fine^23,31. The state must prove the owner knew or should have known the dog was potentially dangerous, and it may not prove that from breed alone. The owner can raise an affirmative defense if the victim trespassed on, or provoked the dog on, property with child-proof fencing and visible "beware of dog" signs. On conviction, the dog is destroyed²³.

If the owner of a dangerous dog already has a conviction under the chapter and the dog bites a person or a domestic animal, that is also a class C felony. It is a defense if the owner was in full compliance and the victim trespassed or provoked the dog²³. See dog bite criminal charges.

Breed rules

Since January 1, 2020, a Washington city or county may not ban a breed, impose breed-specific requirements, or declare a dog dangerous because of its breed, unless it runs an exemption process. Any dog that passes the AKC Canine Good Citizen test or an equivalent behavioral test must be exempt for at least two years, with a chance to retest²⁴. The legislature found that "a dog's breed is not inherently indicative of whether or not a dog is dangerous"²⁴. More on breed-specific legislation and dangerous dog laws by state.

Rules for a declared dog in Washington

Washington rules in brief

Reporting. Since the 2023 revision of the notifiable-conditions rules, a bite is reportable to the state system only when human rabies exposure is suspected. Health care providers and facilities must report such a bite immediately to the local health jurisdiction²⁶. The Department of Health tells bitten people to wash the wound with soap and water and contact their health care provider and local health department²⁷.

Euthanasia. Animal control confiscates a dangerous dog that is unregistered, uninsured, not properly enclosed or loose, and destroys it if the problems are not fixed within 20 days of notice²³. A dog whose attack leads to a felony conviction for severe injury or death, or a repeat attack by a dangerous dog whose owner has a prior conviction, is confiscated, quarantined and destroyed²³. The owner may appeal a dangerous-dog determination within 20 days, to the local appeal body or, if there is none, to municipal or district court²¹.

Criminal penalties. The owner of any dog that aggressively attacks and causes severe injury or death of a person commits a class C felony, if the state proves the owner knew or should have known the dog was potentially dangerous²³. The maximum for a class C felony is five years and a $10,000 fine³¹. Keeping a dangerous dog out of compliance is a gross misdemeanor, and a repeat attack by a dangerous dog whose owner has a prior conviction is a class C felony²³.

Breed rules. Since 2020, a city or county may keep breed-based rules only if any dog that passes the AKC Canine Good Citizen test or an equivalent test is exempt for at least two years²⁴.

Compare states: dangerous dog laws by state, bite quarantine rules, euthanasia after a bite. If your dog bit someone, start with what happens next.

Sources

1. RCW 16.08.040 Dog bites — Liability, Washington State Legislature. Checked 17 October 2026.
2. RCW 16.08.050 Entrance on private property, when lawful, Washington State Legislature. Checked 17 October 2026.
3. RCW 16.08.060 Provocation as a defense, Washington State Legislature. Checked 17 October 2026.
4. RCW 4.16.080 Actions limited to three years, Washington State Legislature. Checked 17 October 2026.
5. RCW 4.16.190 Statute tolled by personal disability, Washington State Legislature. Checked 17 October 2026.
6. RCW 4.22.005 Effect of contributory fault, Washington State Legislature. Checked 17 October 2026.
7. RCW 4.22.015 "Fault" defined, Washington State Legislature. Checked 17 October 2026.
8. Beeler v. Hickman, 50 Wn. App. 746, 750 P.2d 1282 (1988), CourtListener (Washington Court of Appeals opinion). Checked 17 October 2026.
9. Arnold v. Laird, 94 Wn.2d 867, 621 P.2d 138 (1980), CourtListener (Washington Supreme Court opinion). Checked 17 October 2026.
10. Sligar v. Odell, 156 Wn. App. 720, 233 P.3d 914 (2010), CourtListener (Washington Court of Appeals opinion). Checked 17 October 2026.
11. Clemmons v. Fidler, 58 Wn. App. 32, 791 P.2d 257 (1990), CourtListener (Washington Court of Appeals opinion). Checked 17 October 2026.
12. Frobig v. Gordon, 124 Wn.2d 732, 881 P.2d 226 (1994), CourtListener (Washington Supreme Court opinion). Checked 17 October 2026.
13. Saralegui Blanco v. Gonzalez Sandoval, 197 Wn.2d 553, 485 P.3d 326 (2021), CourtListener (Washington Supreme Court opinion). Checked 17 October 2026.
14. Gorman v. Pierce County, 176 Wn. App. 63, 307 P.3d 795 (2013), CourtListener (Washington Court of Appeals opinion). Checked 17 October 2026.
15. RCW 4.96.020 Claims against local governmental entities, Washington State Legislature. Checked 17 October 2026.
16. RCW 4.92.110 Claims against the state — presentment prerequisite to suit, Washington State Legislature. Checked 17 October 2026.
17. RCW 4.24.410 Police dogs — Immunity, Washington State Legislature. Checked 17 October 2026.
18. Sofie v. Fibreboard Corp., 112 Wn.2d 636 (1989), CourtListener (Washington Supreme Court opinion). Checked 17 October 2026.
19. Dailey v. North Coast Life Ins. Co., 129 Wn.2d 572, 919 P.2d 589 (1996), CourtListener (Washington Supreme Court opinion). Checked 17 October 2026.
20. RCW 16.08.070 Dangerous dogs and related definitions, Washington State Legislature. Checked 17 October 2026.
21. RCW 16.08.080 Dangerous dogs — Notice, appeal, registration, bond, insurance, Washington State Legislature. Checked 17 October 2026.
22. RCW 16.08.090 Dangerous dogs — Requirements for restraint, Washington State Legislature. Checked 17 October 2026.
23. RCW 16.08.100 Dangerous dogs — Confiscation, penalties, affirmative defenses, Washington State Legislature. Checked 17 October 2026.
24. RCW 16.08.110 Breed-based regulations, Washington State Legislature. Checked 17 October 2026.
25. WAC 246-100-197 Rabies — Measures to prevent human disease, Washington State Legislature (Department of Health rule). Checked 17 October 2026.
26. Rabies, Suspected Human Exposure — Notifiable Condition, Washington State Department of Health. Checked 17 October 2026.
27. Rabies, Washington State Department of Health. Checked 17 October 2026.
28. HB 1634 (2023–24), Concerning residential insurance policies — bill history, Washington State Legislature. Checked 17 October 2026.
29. File a Tort Claim, Washington State Department of Enterprise Services. Checked 17 October 2026.
30. RCW 16.08.010 Liability for injury to stock by dogs, Washington State Legislature. Checked 17 October 2026.
31. RCW 9A.20.021 Maximum sentences, Washington State Legislature. Checked 17 October 2026.