Pennsylvania Dog Bite Law

How dog bite liability works in Pennsylvania

Pennsylvania sits between the strict-liability states and the pure one-bite states. Section 502(b) of the Dog Law of 1982 says that any cost to the victim for medical treatment resulting from an attacking or biting dog "must be paid fully by the owner or keeper of the dog"¹. The sentence has no knowledge requirement and no provocation exception. It reaches only medical costs, though, so most of a serious claim still runs on common-law negligence.

For everything beyond medical bills, Pennsylvania courts have refused to impose absolute liability on dog owners. The Superior Court said so in Deardorff v. Burger (1992) and McCloud v. McLaughlin (2003)¹²¹³. Proof that the owner knew of the dog's dangerous propensity still matters, and one earlier incident can be enough¹². The more common route is Miller v. Hurst (1982): an unexcused breach of the Dog Law's rule that a dog be confined, chained or under reasonable control is negligence per se¹¹. A loose dog that bites a passer-by is the classic case. The plaintiff still has to show the breach was a substantial factor in the injury¹⁴.

The word "owner" is broad in Pennsylvania. The Dog Law defines it to include anyone who keeps or harbors a dog, has it in their care, or lets it stay on premises they occupy¹. A dog walker or pet-care business with custody can owe the same duty as the owner¹⁸. A landlord who is not in possession is different: the landlord must have actual knowledge of the dog's dangerous propensities¹⁷.

Among its neighbors, Pennsylvania is a middle case. New Jersey and Ohio have broader dog bite statutes, so a bite near a state line can lead to a different result depending on where it happened. The Pennsylvania deadline is two years, with the clock paused for children until age 18²³.

The Pennsylvania dog bite statute

Section 502(b) of the Dog Law says any cost to the victim for medical treatment resulting from an attacking or biting dog must be paid fully by the owner or keeper of the dog, and that the Commonwealth is not liable for it¹. The Dog Law defines "attack" to include biting, seizing with the teeth or pursuing a person¹. The section has no knowledge requirement and no provocation or trespass exception. Those exceptions appear only in the dangerous-dog article¹. It covers medical costs only. Lost wages, pain and suffering and scarring need a negligence or scienter claim¹².

• Law: 3 P.S. § 459-502(b) (Dog Law, section 502 (dog bites; detention and isolation of dogs)), enacted 1982; last changed 2023 (Act 18 amended § 502(a) on confinement); § 502 as a whole was last amended before that in 2008
• Injuries covered: Any injury the dog causes (bites, knock-downs, chases)
• Where: Anywhere
• Who is liable: The owner, or a keeper or harborer
• Damages: Economic (out-of-pocket) damages only

Other ways to prove liability

Outside the medical-cost rule, a Pennsylvania owner or keeper is liable in negligence if they knew or had reason to know of the dog's dangerous propensities and failed to use reasonable care to restrain it. One earlier incident can establish that knowledge¹²¹⁸. The Superior Court will not impose absolute liability, even on an owner who knew the dog was vicious¹²¹³. An unexcused violation of the Dog Law's confinement rule (3 P.S. § 459-305) is negligence per se. The owner can offer an excuse, and the plaintiff must still prove the violation was a substantial factor in the injury¹¹¹⁴¹. In Underwood v. Wind (2008) the court let a jury consider the attack itself when deciding whether the dogs had dangerous propensities¹⁶.

Defenses owners raise

Provocation

The dangerous-dog article does not apply if the injured person was tormenting, abusing or assaulting the dog, or had been seen doing so before¹. In a negligence case, provocation also goes to causation and comparative fault⁴¹¹.

Trespassing

A dog cannot be found dangerous for biting or attacking a person who was committing criminal trespass (18 Pa.C.S. § 3503). The dangerous-dog article also does not apply to a person committing a willful trespass or other tort on the owner's premises¹.

Committing a crime

The dangerous-dog article does not apply if the injured person was committing or attempting to commit a crime¹.

Police dogs

Police work dogs and service dogs performing their duties are exempt from the dangerous-dog registration rules. They need not be confined after a bite if a veterinarian actively supervises them¹. A claim against a local agency for its own police dog falls under the animal-custody exception to governmental immunity⁶.

Veterinarians and dog professionals

For the dangerous-dog offense, a licensed veterinarian or certified veterinary technician acting within the scope of their duties is not the dog's "owner" or "keeper"¹.

Other defense

A farmer is not guilty of keeping a dangerous dog if the dog does not leave the farm to attack and the farm is posted with watch-dog or guard-dog warnings at every entrance¹.

Shared fault

Modified comparative fault (barred at 51%) (42 Pa.C.S. § 7102).

Your damages are reduced by your share of fault. You recover nothing only if your negligence is greater than the combined negligence of the defendants, so a plaintiff found 50% at fault still recovers half⁴. Contributory negligence has been a defense to a Dog Law negligence-per-se claim since Miller v. Hurst¹¹. We found no appellate decision on whether a victim's fault reduces the medical costs owed under § 502(b), whose text has no fault exception¹.

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

Pennsylvania dog bite statute of limitations

2 years (42 Pa.C.S. § 5524(2))

A personal-injury suit must be filed within two years, usually counted from the day of the bite. A claim for a pet or other property the dog injured also has a two-year limit². A claim against a city, township, county or other government unit needs written notice within six months of the injury, unless the government already had actual or constructive notice⁵.

Children. If the child was an unemancipated minor when bitten, time before the 18th birthday does not count. The child then has the full two years, so a suit can be filed until age 20³.

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

Damages

Under § 502(b), the owner or keeper owes the victim's medical treatment costs without proof of fault¹. A negligence claim can also recover lost earnings, pain and suffering, scarring and other losses. No statute caps those damages in a suit against a private owner. Punitive damages require conduct that is outrageous because of evil motive or reckless indifference to the rights of others²¹. Claims against a local agency are capped at $500,000, and pain and suffering is allowed only for death or a permanent loss of bodily function, disfigurement or dismemberment with over $1,500 in medical costs⁷. If the owner of a dangerous dog is a minor, the parent is liable for injuries from an unprovoked attack under the parental-liability law¹.

Landlords and property owners

A landlord out of possession is generally not liable for a tenant's dog. The exception applies when the landlord has actual knowledge that the tenant harbors a dog with dangerous propensities and can control or remove it by retaking the premises¹⁵¹⁷. In Underwood v. Wind (2008), the Superior Court ordered a new trial for a landlord because the jury had been told she was liable if she "should have known" of the danger¹⁶. The Dog Law's confinement duties bind the owner or keeper, not an out-of-possession landlord¹⁶.

Insurance

The Dog Law says no liability policy or surety bond "issued pursuant to this act or any other act" may exclude coverage for a specific breed¹. No published ruling we found applies it to ordinary homeowners or renters underwriting, and no statute bars insurers from refusing or surcharging policies by breed. The owner of a declared dangerous dog must carry a $50,000 bond or liability policy that names the Secretary of Agriculture for cancellation notices¹.

Pennsylvania ranked #5 in the United States for dog-related homeowners insurance claims in 2025: 1,324 claims with an average cost of $68,786 (national average $65,450), according to the Insurance Information Institute and State Farm. These are insurer payouts, not court awards.

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

The medical-cost rule in section 502(b)

Pennsylvania's partial strict liability comes from one sentence in the Dog Law's bite-quarantine section. After telling the investigating officer to tell the victim whether the quarantined dog shows signs of rabies, § 502(b) says: "Any cost to the victim for medical treatment resulting from an attacking or biting dog must be paid fully by the owner or keeper of the dog. The Commonwealth shall not be liable for medical treatment costs to the victim"¹. Because the Dog Law's "owner" includes anyone who keeps, harbors or cares for the dog, a person caring for the dog at the time can owe these costs¹.

Case law on the sentence is thin. In a 1993 decision, a federal court in Pennsylvania read it as a legislative limit on the one-bite rule¹⁹. We found no Pennsylvania appellate decision on how it works in a civil suit: whether it creates its own cause of action, whether comparative fault reduces it, or whether a provocation defense applies. Because the rule covers only medical costs, a claim for wages, pain and suffering or scarring still depends on negligence, negligence per se or proof that the owner knew of the danger¹¹¹².

Bite reports and quarantine

Health care practitioners and facilities must report an animal bite to public health authorities within 24 hours¹⁰. The Dog Law requires every known dog attack to be reported to the State dog warden, who investigates. A warden or police officer who knows of an attack on a person must file a written report with the local police, and that report is open to public inspection¹.

A dog that bites or attacks a person must be confined right away and isolated for at least 10 days¹. The investigating officer (a dog warden, health department employee, animal control officer or police officer) decides where. Options include an approved kennel or a primary enclosure on the owner's property¹. Health rules set the same 10-day observation for a healthy dog or cat⁹. The owner or keeper pays the confinement costs and any veterinary exams the health officer orders. If the dog leaves the enclosure for veterinary care or relief, it must be muzzled and leashed¹⁹.

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

Questions about Pennsylvania dog bite law

Is Pennsylvania a one-bite state?

Partly. For medical bills, no: the Dog Law makes the owner or keeper pay a victim's medical treatment costs without proof of fault¹. For other damages, the courts require proof that the owner knew of the dog's dangerous propensity or was negligent. Pennsylvania imposes no absolute liability¹²¹³. A first bite by a dog running loose can still lead to liability through negligence per se¹¹.

My child was bitten. How long do we have to sue in Pennsylvania?

The two-year limit does not start until the child turns 18, so the child can sue until age 20³². If a city or township animal was involved, written notice to the government unit is due within six months⁵.

Can I sue the landlord when a tenant's dog bites me?

Only in narrow cases. The landlord must have actually known the dog was dangerous and been able to control or remove it by retaking the premises¹⁵¹⁷. "Should have known" is not enough. The Superior Court ordered a new trial in 2008 because a jury was told otherwise¹⁶.

Will my dog be put down for biting someone in Pennsylvania?

Not for a single bite in itself. The usual result is a 10-day isolation, often at home¹. A destruction order follows when a dog, through the owner's intentional, reckless or negligent conduct, aggressively attacks and causes severe injury or death. It also follows an attack by an already-declared dangerous dog, or a repeat violation of the dangerous-dog rules. The owner can appeal within ten days¹.

Can the victim file the dangerous-dog charge themselves?

Since the 2023 amendments, outside Philadelphia, Pittsburgh and Scranton, a State dog warden or local police officer files the complaint on the victim's behalf¹. In those three cities, the victim or anyone on their behalf may still file before a magisterial district judge¹. Older guidance, and Clein v. Graf (2004), describes the pre-2023 rule that let any victim file²⁰.

Official contacts

Sources

1. Dog Law, Act of Dec. 7, 1982, P.L. 784, No. 225 (3 P.S. § 459-101 et seq.), §§ 102, 305, 502, 502-A to 507-A, as amended through Act 47 of 2024, Pennsylvania General Assembly. Checked 17 October 2026.
2. 42 Pa.C.S. § 5524 (two year limitation), Pennsylvania General Assembly. Checked 17 October 2026.
3. 42 Pa.C.S. § 5533 (infancy), Pennsylvania General Assembly. Checked 17 October 2026.
4. 42 Pa.C.S. § 7102 (comparative negligence), Pennsylvania General Assembly. Checked 17 October 2026.
5. 42 Pa.C.S. § 5522 (six months limitation; notice to government unit), Pennsylvania General Assembly. Checked 17 October 2026.
6. 42 Pa.C.S. § 8542 (exceptions to governmental immunity), Pennsylvania General Assembly. Checked 17 October 2026.
7. 42 Pa.C.S. § 8553 (limitations on damages), Pennsylvania General Assembly. Checked 17 October 2026.
8. 18 Pa.C.S. § 1104 (sentence of imprisonment for misdemeanors), Pennsylvania General Assembly. Checked 17 October 2026.
9. 28 Pa. Code § 27.162 (special requirements for animal bites), Pennsylvania Code and Bulletin. Checked 17 October 2026.
10. 28 Pa. Code § 27.21a (reporting by health care practitioners and facilities), Pennsylvania Code and Bulletin. Checked 17 October 2026.
11. Miller v. Hurst, 448 A.2d 614 (Pa. Super. 1982) (en banc), CourtListener. Checked 17 October 2026.
12. Deardorff v. Burger, 606 A.2d 489 (Pa. Super. 1992), CourtListener. Checked 17 October 2026.
13. McCloud v. McLaughlin, 837 A.2d 541 (Pa. Super. 2003), CourtListener. Checked 17 October 2026.
14. Villaume v. Kaufman, 550 A.2d 793 (Pa. Super. 1988), CourtListener. Checked 17 October 2026.
15. Palermo v. Nails, 483 A.2d 871 (Pa. Super. 1984), CourtListener. Checked 17 October 2026.
16. Underwood ex rel. Underwood v. Wind, 954 A.2d 1199 (Pa. Super. 2008), CourtListener. Checked 17 October 2026.
17. Rosenberry v. Evans, 48 A.3d 1255 (Pa. Super. 2012), CourtListener. Checked 17 October 2026.
18. Franciscus v. Sevdik, 135 A.3d 1092 (Pa. Super. 2016), CourtListener. Checked 17 October 2026.
19. Gallick v. Barto, 828 F. Supp. 1168 (M.D. Pa. 1993), CourtListener. Checked 17 October 2026.
20. Clein v. Graf, 862 A.2d 596 (Pa. Super. 2004), CourtListener. Checked 17 October 2026.
21. Hutchison v. Luddy, 870 A.2d 766 (Pa. 2005), CourtListener. Checked 17 October 2026.
22. PA's Dog Laws (Bureau of Dog Law Enforcement responsibilities), Pennsylvania Department of Agriculture. Checked 17 October 2026.