Pennsylvania Dangerous Dog Law
In Pennsylvania, a dog that bites or attacks a person must be isolated for at least 10 days, often at home if the investigating officer approves1. Since the 2023 amendments, a State dog warden or police officer files any dangerous-dog charge before a magisterial district judge, who must find the facts beyond a reasonable doubt1. A dog found dangerous costs $1,000 a year to register and must be insured, microchipped, neutered and muzzled off its enclosure1.
After a bite in Pennsylvania
| Rabies observation | 10 daysDetails below |
|---|---|
| State dangerous-dog law | 3 P.S. §§ 459-502-A to 459-507-ADog Law, Article V-A (Dangerous Dogs) |
| Classes of dog | dangerous dog |
| Required insurance for a declared dog | $50,000 minimum |
| Breed-specific laws | Banned: state law bars breed-specific local rules |
| Civil liability for the bite | Partial strict liability |
What happens right after a bite?
Any dog that bites or attacks a person must be confined right away and isolated for at least 10 days1. A State dog warden, a Department of Health or Agriculture employee, an animal control officer or a police officer approves the place. It can be a kennel or a primary enclosure at the owner's home, at the officer's discretion. The owner or keeper pays all costs. If the dog leaves the enclosure for veterinary care or relief, it must be muzzled, leashed and physically held1. The health code sets the same 10-day observation and lets the health officer order veterinary exams at the owner's expense9. Police work dogs and service dogs on duty may stay out of confinement if a veterinarian actively supervises them1.
The treating doctor or hospital reports the bite to public health authorities within 24 hours10. Every known dog attack must also go to the State dog warden, who investigates. A warden or police officer files a written report with the local police, and that report is public1. The Department of Agriculture's Bureau of Dog Law Enforcement handles bite investigations and quarantines and keeps the statewide Dangerous Dog Registry22.
How is a dog declared dangerous?
Pennsylvania declares dogs dangerous through a criminal case, not an administrative hearing. A State dog warden or local police officer files a complaint before a magisterial district judge. The complaint charges the owner or keeper with the summary offense of harboring a dangerous dog, on behalf of the person attacked or the owner of an animal the dog killed or injured1. The judge must find beyond a reasonable doubt that the dog did one of these things1:
- inflicted severe injury on a person without provocation, on public or private property ("severe injury" means broken bones or disfiguring lacerations needing multiple sutures or cosmetic surgery);
- killed or severely injured a domestic animal, dog or cat without provocation while off the owner's property;
- attacked a person without provocation;
- was used in a crime; or
- has a history of unprovoked attacks.
A conviction is the determination that the dog is dangerous, and the judge reports it to the Bureau1. The first and third grounds do not apply if the person was committing criminal trespass. Exceptions also cover people who were tormenting or abusing the dog or committing a crime, and posted farm dogs that do not leave the farm1.
What changed in 2023?
Act 18 of 2023 rewrote this section. Before it, the person attacked, or anyone on their behalf, could file the complaint directly. In Clein v. Graf (2004), the Superior Court held that a victim needed no district attorney's approval to do so20. The amended text gives the filing role to the dog warden or police officer outside Philadelphia, Pittsburgh and Scranton. In those cities, the victim, anyone on their behalf, police or animal control may still file1. The 2023 act also set the annual registration fee at $1,0001.
While the case is pending
Once charged, the owner must keep the dog in a proper enclosure. The dog may leave only for veterinary care, muzzled, leashed and restrained, and it must stay confined through any appeal. The owner may not sell, give away or move the dog, except to a licensed kennel the investigating officer approves or to have it humanely killed. A violation carries a fine of at least $5001.
What must the owner do after the finding?
Within 30 days of written notice from the Department of Agriculture, the owner must show a proper enclosure and post the warning signs. The owner must also pay court-ordered restitution, microchip and spay or neuter the dog, and buy a $50,000 bond or liability policy1. The dog may not leave its enclosure unless muzzled, on a substantial chain or leash, and held by a responsible person1. Any new owner takes on the same duties1.
When can a dog be destroyed?
A judge issues a seizure and destruction order in three situations1:
- a declared dangerous dog attacks a person or animal through the owner's intentional, reckless or negligent conduct;
- any dog, declared or not, aggressively attacks and causes severe injury or death to a person through such conduct;
- the owner commits a second registration or restraint violation.
The dog is quarantined, and it is destroyed after ten days if no appeal is filed. An appeal must be filed within ten days of receiving the order. It must include a written agreement with a licensed kennel that will hold the dog, at the owner's expense. If the kennel goes unpaid, the dog is destroyed1.
Criminal penalties
- Failing to register, insure, enclose or muzzle a dangerous dog: third-degree misdemeanor, up to one year18.
- A repeat violation: second-degree misdemeanor, a fine up to $5,000 and forfeiture of the dog1.
- An attack by a declared dangerous dog caused by the owner's intentional, reckless or negligent conduct: second-degree misdemeanor, up to two years18.
- Any dog that aggressively attacks and causes severe injury or death to a person through such conduct: first-degree misdemeanor, up to five years18.
Breed rules
State law abrogates local dangerous-dog ordinances. No local dog ordinance may prohibit or limit a specific breed1. The Superior Court has said the Dog Law does not treat any breed as dangerous per se; it reaches dogs by their behavior18.
Rules for a declared dog in Pennsylvania
| Requirement | Rule |
|---|---|
| Registration | $1,000 per calendar year for the dog's life, plus a set fee§ 503-A(b), as amended in 2023.1 |
| Bond or insurance | $50,000 surety bond or liability policy§ 503-A(a.1)(5).1 |
| Enclosure | Locked pen or indoors, secure against children and animals§§ 102, 503-A.1 |
| Warning signs | Posted sign plus a symbol sign for children§ 503-A(a.1)(1).1 |
| Microchip and spay/neuter | Both required, at the owner's cost§ 503-A(a.1)(3)-(4).1 |
| Off the property | Muzzled, on a substantial leash, held by a responsible person§ 504-A.1 |
| 24-hour notice | If the dog escapes, attacks, dies or is sold or given away§ 503-A(d)(2).1 |
| Restitution | Court-ordered restitution to the victim§ 503-A(a.1)(2).1 |
Pennsylvania rules in brief
Reporting. 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.
Euthanasia. A dog is ordered seized and destroyed when (1) a declared dangerous dog attacks a person or animal through the owner's intentional, reckless or negligent conduct, (2) any dog, through such conduct, aggressively attacks and causes severe injury or death to a person, or (3) a dangerous-dog violation is repeated. The owner may appeal within ten days of receiving the order. The owner must pay all kenneling and quarantine costs and show a written agreement with a licensed kennel1.
Criminal penalties. If a dog aggressively attacks and causes severe injury or death to a person through the owner's intentional, reckless or negligent conduct, the owner commits a first-degree misdemeanor, punishable by up to five years in prison. An attack by an already-declared dangerous dog is a second-degree misdemeanor, punishable by up to two years18.
Breed rules. The Dog Law abrogates local dangerous-dog ordinances and bars any local dog ordinance that prohibits or limits a specific breed1.
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
- 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.
- 42 Pa.C.S. § 5524 (two year limitation), Pennsylvania General Assembly. Checked 17 October 2026.
- 42 Pa.C.S. § 5533 (infancy), Pennsylvania General Assembly. Checked 17 October 2026.
- 42 Pa.C.S. § 7102 (comparative negligence), Pennsylvania General Assembly. Checked 17 October 2026.
- 42 Pa.C.S. § 5522 (six months limitation; notice to government unit), Pennsylvania General Assembly. Checked 17 October 2026.
- 42 Pa.C.S. § 8542 (exceptions to governmental immunity), Pennsylvania General Assembly. Checked 17 October 2026.
- 42 Pa.C.S. § 8553 (limitations on damages), Pennsylvania General Assembly. Checked 17 October 2026.
- 18 Pa.C.S. § 1104 (sentence of imprisonment for misdemeanors), Pennsylvania General Assembly. Checked 17 October 2026.
- 28 Pa. Code § 27.162 (special requirements for animal bites), Pennsylvania Code and Bulletin. Checked 17 October 2026.
- 28 Pa. Code § 27.21a (reporting by health care practitioners and facilities), Pennsylvania Code and Bulletin. Checked 17 October 2026.
- Miller v. Hurst, 448 A.2d 614 (Pa. Super. 1982) (en banc), CourtListener. Checked 17 October 2026.
- Deardorff v. Burger, 606 A.2d 489 (Pa. Super. 1992), CourtListener. Checked 17 October 2026.
- McCloud v. McLaughlin, 837 A.2d 541 (Pa. Super. 2003), CourtListener. Checked 17 October 2026.
- Villaume v. Kaufman, 550 A.2d 793 (Pa. Super. 1988), CourtListener. Checked 17 October 2026.
- Palermo v. Nails, 483 A.2d 871 (Pa. Super. 1984), CourtListener. Checked 17 October 2026.
- Underwood ex rel. Underwood v. Wind, 954 A.2d 1199 (Pa. Super. 2008), CourtListener. Checked 17 October 2026.
- Rosenberry v. Evans, 48 A.3d 1255 (Pa. Super. 2012), CourtListener. Checked 17 October 2026.
- Franciscus v. Sevdik, 135 A.3d 1092 (Pa. Super. 2016), CourtListener. Checked 17 October 2026.
- Gallick v. Barto, 828 F. Supp. 1168 (M.D. Pa. 1993), CourtListener. Checked 17 October 2026.
- Clein v. Graf, 862 A.2d 596 (Pa. Super. 2004), CourtListener. Checked 17 October 2026.
- Hutchison v. Luddy, 870 A.2d 766 (Pa. 2005), CourtListener. Checked 17 October 2026.
- PA's Dog Laws (Bureau of Dog Law Enforcement responsibilities), Pennsylvania Department of Agriculture. Checked 17 October 2026.