District of Columbia Dog Bite Law

How dog bite liability works in D.C.

Washington's dog law began with an act of Congress. In 1878 Congress taxed dogs in the District and said an owner "shall be liable in a civil action for any damage done by said dog to the full amount of the injury inflicted"³. The courts read those words narrowly: in Murphy v. Preston (1887) and again in Karlow v. Fitzgerald (1961) they held that the injured person still had to prove scienter, meaning the owner knew or should have known of the dog's dangerous propensity³. That one-bite rule is still the starting point in October 2026.

The D.C. Council added the exception that matters most on city sidewalks. Section 8-1808 forbids an owner or custodian to let an animal go at large, and adds that if a dog injures a person while at large, "lack of knowledge of the dog's vicious propensity standing alone shall not absolve the owner from a finding of negligence"¹. "At large" means off the owner's premises and not leashed, tethered or otherwise under the control of someone able to restrain it; an official dog park does not count².

The exception has limits. In Chadbourne v. Kappaz (2001) the Court of Appeals held the leash law too general to be negligence per se: the jury still decides whether the owner intentionally let the dog loose or failed to use due care to keep it in⁴. A bite inside the owner's home or yard, where the dog is not at large, goes back to the knowledge rule or ordinary negligence³.

Contributory negligence makes the District harsher for injured people than most states. The Court of Appeals recognizes no degrees of it: any contributory negligence bars recovery⁵. Neighboring Maryland and Virginia keep the same rule, and D.C.'s 2016 carve-out protects only pedestrians and cyclists in collisions with vehicles, not people hurt by dogs²¹.

The D.C. dog bite statute

Section 8-1808(a)(1) bars an owner or custodian from allowing an animal to go at large. Subsection (a)(2) adds that when a dog injures a person while at large, the owner's lack of knowledge of the dog's vicious propensity, standing alone, does not absolve the owner from a finding of negligence¹. It applies to any injury, not only bites, but only while the dog is off its owner's premises and not leashed, tethered or under adequate control; dogs in official dog parks are excluded². Fault is still required: the injured person must show the owner let the dog loose on purpose or failed to use due care to keep it confined⁴.

• Law: D.C. Code § 8-1808(a) (Dog injuring a person while at large (Animal Control Act)); last changed Section last amended by D.C. Law 22-164 (2018); subsection (a) unchanged by the 2023–2026 Councils
• Injuries covered: Any injury the dog causes (bites, knock-downs, chases)
• Where: Only when the dog was running at large
• Who is liable: The owner
• Damages: All damages, under the ordinary rules

Other ways to prove liability

Outside the at-large rule, you must prove scienter: that the owner knew or should have known the dog had the particular dangerous propensity that caused your harm³. Karlow held that a dog's habit of chasing wheels or bumping into people did not show knowledge that it would bite³. Once scienter is shown, the keeper is liable for foreseeable harm however careful they were, and a separate negligence claim lies for careless keeping or control without any scienter³. Violating the leash law is evidence of negligence but not negligence per se, because the statute only restates the duty of reasonable care⁴. For the law across the country, see the one-bite rule.

Defenses owners raise

Other defense

Contributory negligence. If your own negligence helped cause the injury, the District's common-law rule bars recovery entirely; in Chadbourne the jury was properly told to consider it against a man hurt while pulling a loose dog off his own dog⁴⁵.

Assumption of risk

An owner can argue that you knowingly accepted the danger, for example by stepping into a dog fight. Chadbourne held that assumption of risk was properly put to the jury in a dog-injury case⁴.

Provocation

No civil statute lists provocation as a defense, but it goes to fault and causation under the general negligence rules⁴. For the separate dangerous-dog process, a dog that bit someone who was provoking, tormenting or abusing it cannot be declared dangerous¹⁶.

Trespassing

The at-large rule protects people injured by a dog off its owner's property². If you were bitten on the owner's premises, the knowledge rule applies, and a willful trespasser cannot be the basis of a dangerous-dog determination³¹⁶.

Police dogs

Dogs used by law enforcement for legitimate purposes are excluded from the dangerous-dog definitions, and the ban on directing a dog to attack does not cover Metropolitan Police Department dogs¹⁵¹. See police dog bites.

Shared fault

Contributory negligence (any fault can bar recovery) (*Wingfield v. Peoples Drug Store, Inc.*, 379 A.2d 685 (D.C. 1977)).

The District applies pure contributory negligence: in Wingfield the Court of Appeals held that D.C. does not recognize degrees of contributory negligence, and that any contributory negligence bars a plaintiff's recovery⁵. Contributory negligence and assumption of risk are complete defenses to a dog-injury negligence claim, including one built on the at-large rule, because that rule itself rests on negligence⁴. The 2016 Motor Vehicle Collision Recovery Act lets pedestrians and cyclists recover unless they were more at fault than the defendants, but it covers only collisions with vehicles and other road users, not dog attacks²¹.

How the five fault systems compare: provocation, trespass and shared fault.

D.C. dog bite statute of limitations

3 years (D.C. Code § 12-301(8))

A negligence suit for injuries from a dog must be filed within three years from the day the claim accrued, normally the day of the bite; property damage, such as an injured pet, also has three years⁶. A claim that the owner deliberately set the dog on you may be treated as assault or battery, which has only one year⁶. Against the District government, for example over a dog in a public facility, you must give written notice to the Mayor within six months; a Metropolitan Police Department report can count as notice⁸.

Children. If the bitten person was under 18 when the claim arose, the clock does not start until their 18th birthday, so the three-year period runs to age 21; § 12-302 sets no shorter cap⁷.

Work out your own date with the dog bite claim checker, or compare deadlines in every state.

Damages

A successful plaintiff recovers ordinary tort damages: medical and future medical costs, lost wages and earning capacity, pain and suffering, scarring and disfigurement, and emotional distress. No District statute doubles or trebles damages for a dog bite, and the at-large rule allows the full measure of damages, not just economic loss¹. Punitive damages require clear and convincing proof that the owner acted with malice or its equivalent, a higher bar than the negligence that wins most dog bite cases⁹. See dog bite settlements.

Landlords and property owners

A landlord is not an "owner" of a tenant's dog just by owning the building¹⁰. Under Campbell v. Noble (2008), a landlord is liable only if they knew of the danger and had the legal right to control it, such as a no-pets clause they could enforce; notice alone was not enough where a tattoo-parlor tenant's pit bulls mauled a 13-year-old¹⁰. The court also refused to treat pit bulls as inherently dangerous¹⁰. The Pets in Housing Amendment Act of 2024 would bar breed, size and weight restrictions for leases beginning after October 1, 2026, but as of October 17, 2026 the D.C. Code marks those provisions "Not Funded" and they have not taken effect¹¹. See landlord liability.

Insurance

We found no District statute or insurance rule, as of October 2026, that limits homeowners or renters insurers' use of dog breed. The dangerous-dog registration rules do not require liability insurance or a bond¹⁸. The 2024 housing law's breed protections address landlords, not insurers, and were unfunded in October 2026¹¹.

More on coverage, breed exclusions and renters policies: dog bite insurance.

Why an 1878 act of Congress still matters

Few jurisdictions can trace their dog bite rule to Congress. The 1878 dog tax act said an owner of a taxed dog "shall be liable in a civil action for any damage done by said dog to the full amount of the injury inflicted," language that reads like strict liability³. In Murphy v. Preston (1887), the District's court held that Congress meant no change to the common law, so a plaintiff still had to prove the owner knew the dog was vicious; Bardwell v. Petty (1923) and Scharfeld v. Richardson (1942) kept that reading, and in 1961 the D.C. Circuit in Karlow v. Fitzgerald said it was "too late in the day" to read the act differently³. That is why some secondary sources call D.C. a strict-liability jurisdiction and others call it a one-bite jurisdiction. The modern answer is in between: the knowledge rule governs, except for dogs at large under § 8-1808(a)(2)¹.

Bite reports and quarantine

Under 22-B DCMR § 203.1, a veterinarian or any other person who has reason to suspect that a person was potentially exposed to rabies by a bite must report it immediately by phone to DC Health, followed by a written report¹². A report made to the police, to Animal Care and Control or to a private veterinary clinic must be passed on to DC Health at once¹². DC Health asks that bites be reported to DC Animal Care and Control at (202) 888-7387 or through its online Animal Bite Report Form¹³¹⁴.

After DC Health notifies the owner, a dog that bit a person must be quarantined for 10 days, whatever its vaccination status, on the owner's premises, or where DC Health designates at the owner's expense; it may not be given a rabies vaccine during that time¹². A veterinarian or official examines the dog on the first and last days, at the owner's expense¹². The owner may not release, move out of the District or dispose of the dog during quarantine; a dog that shows signs of rabies is euthanized and tested¹². See dog bite quarantine.

Dangerous-dog hearings, euthanasia orders and criminal penalties are covered on D.C. dangerous dog law.

Questions about D.C. dog bite law

Is the District of Columbia a one-bite jurisdiction?

Mostly. Outside one exception, you must prove the owner knew or should have known the dog was dangerous, or that the owner was careless in keeping or controlling it³. The exception: if the dog injured you while it was at large, off its owner's property and not leashed or under control, the owner cannot escape liability just by saying they did not know it was vicious¹².

I was bitten while walking my own dog in D.C. Can I recover?

You may, if the other dog was at large through its owner's intent or carelessness¹⁴. But D.C.'s contributory negligence rule means that if a jury finds you were careless, for example by grabbing the attacking dog, you can recover nothing; that is what happened in Chadbourne v. Kappaz⁴. See dog attacked my dog.

Does the bitten person have to get rabies shots in D.C.?

Not always. 22-B DCMR § 203.7 tells health care providers to start post-exposure treatment and lets them stop when the biting dog tests negative or is proven adequately vaccinated¹². If the dog stays healthy through its 10-day quarantine, DC Health says the bitten person will not need rabies shots¹³.

Can I sue my landlord because another tenant's dog bit me?

Only if the landlord knew the dog was dangerous and had the legal power to remove it, usually through a lease clause they failed to enforce¹⁰. In Campbell v. Noble the Court of Appeals refused to hold a landlord liable for a tenant's pit bulls because the lease gave him no right to evict over the dogs¹⁰.

Will my dog be put down after it bit someone in D.C.?

Not because of a single bite alone. A biting dog normally goes through a 10-day home quarantine and is released if healthy¹²¹⁴. Euthanasia comes only through the dangerous-dog process: a finding that the dog threatens public safety, or an owner's failure to register it, follow the confinement rules or pay impound costs¹⁷. See the D.C. dangerous dog law page.

Official contacts

Sources

1. D.C. Code § 8-1808 (prohibited conduct; dog at large), Council of the District of Columbia. Checked 17 October 2026.
2. D.C. Code § 8-1801 (animal control definitions), Council of the District of Columbia. Checked 17 October 2026.
3. Karlow v. Fitzgerald, 288 F.2d 411 (D.C. Cir. 1961), CourtListener (Free Law Project). Checked 17 October 2026.
4. Chadbourne v. Kappaz, 779 A.2d 293 (D.C. 2001), CourtListener (Free Law Project). Checked 17 October 2026.
5. Wingfield v. Peoples Drug Store, Inc., 379 A.2d 685 (D.C. 1977), CourtListener (Free Law Project). Checked 17 October 2026.
6. D.C. Code § 12-301 (limitation of time for bringing actions), Council of the District of Columbia. Checked 17 October 2026.
7. D.C. Code § 12-302 (disability of plaintiff), Council of the District of Columbia. Checked 17 October 2026.
8. D.C. Code § 12-309 (notice of claims against the District), Council of the District of Columbia. Checked 17 October 2026.
9. Jonathan Woodner Co. v. Breeden, 665 A.2d 929 (D.C. 1995), CourtListener (Free Law Project). Checked 17 October 2026.
10. Campbell v. Noble, 962 A.2d 264 (D.C. 2008), CourtListener (Free Law Project). Checked 17 October 2026.
11. D.C. Code § 42-3505.10 (Pets in Housing amendments, not funded), Council of the District of Columbia. Checked 17 October 2026.
12. 22-B DCMR § 203, Rabies and Animal Bites, D.C. Office of Documents and Administrative Issuances. Checked 17 October 2026.
13. Rabies and Animal Exposures, DC Health. Checked 17 October 2026.
14. Dog Bites, DC Health. Checked 17 October 2026.
15. D.C. Code § 8-1901 (dangerous dog definitions), Council of the District of Columbia. Checked 17 October 2026.
16. D.C. Code § 8-1902 (determination, hearing and appeal), Council of the District of Columbia. Checked 17 October 2026.
17. D.C. Code § 8-1903 (consequences of a determination), Council of the District of Columbia. Checked 17 October 2026.
18. D.C. Code § 8-1904 (registration requirements), Council of the District of Columbia. Checked 17 October 2026.
19. D.C. Code § 8-1905 (owner responsibilities), Council of the District of Columbia. Checked 17 October 2026.
20. D.C. Code § 8-1906 (penalties), Council of the District of Columbia. Checked 17 October 2026.
21. D.C. Code § 50-2204.52 (contributory negligence limitation), Council of the District of Columbia. Checked 17 October 2026.
22. D.C. Code § 8-1803 (vaccinations), Council of the District of Columbia. Checked 17 October 2026.
23. D.C. Code § 8-1811 (penalty), Council of the District of Columbia. Checked 17 October 2026.