Maryland Dog Bite Laws: Liability, Dangerous Dog Rules, and Insurance
What Maryland law expects from you as a dog owner — who pays after a bite, how a dog gets designated dangerous, and whether the state requires liability insurance. Every citation links to the official statute.
This page is not legal advice. It summarizes Maryland state law as of 2026-07-13. Laws change and cities add their own rules — personally check the official statutes linked below, and talk to a licensed Maryland attorney before acting on anything that matters.
| Liability rule | Mixed (statute + common law) |
|---|---|
| Bite statute | Md. Code Ann., Cts. & Jud. Proc. § 3-1901 |
| Dangerous-dog statute | Md. Code Ann., Crim. Law § 10-619 |
| Insurance requirement | No statewide requirement found |
Who pays when a dog bites — the Maryland rule
Maryland splits liability by who gets sued, so it is not a clean strict-liability or one-bite state. The rule comes from a 2014 law that replaced an earlier court ruling singling out pit bulls for automatic liability (Md. Code Ann., Cts. & Jud. Proc. § 3-1901).
If you own the dog and it injures someone, the law presumes you knew it was dangerous. You can try to rebut that presumption, but a judge cannot end the case on that point before trial; a jury decides. That is closer to strict liability than a one-bite defense, though it is not automatic liability either. If your dog is running at large, off your property and unrestrained, when it hurts someone, you are liable outright, no presumption needed, unless the injured person was trespassing, committing a crime, or provoking the dog.
For non-owners, like a landlord or dog-sitter, an older common-law standard applies instead: the injured person must prove that person knew or should have known the dog was dangerous. None of this depends on breed. Maryland has no statewide leash law, so whether your dog counts as running at large can depend on your local ordinance.
How a dog gets designated dangerous
Maryland's dangerous-dog rules sit in the criminal code, not a civil chapter (Md. Code Ann., Crim. Law § 10-619).
A dog is legally dangerous if, without provocation, it has killed or severely injured a person (broken bones or disfiguring lacerations needing stitches or surgery), or if a local unit already found it potentially dangerous and it then bites someone, kills or severely injures another animal off the owner's property, or attacks without provocation. The potentially dangerous label itself comes from a county or municipal unit, not a state court, and the owner must get written notice of the reasons.
Once a dog carries either designation, the owner must keep it confined indoors, in a securely locked pen, or in a similar structure when left outside unattended, and leashed and muzzled whenever it leaves the property. Selling or giving the dog away requires written notice to the local authority and the new owner. The statute itself does not mention a warning sign, registration certificate, spay or neuter, or microchipping requirement; if a local jurisdiction requires any of those, it would be under its own ordinance, not this state law. Violating the confinement, muzzle, leash, or transfer-notice rules is a misdemeanor punishable by a fine up to $2,500.
Insurance requirements
Maryland law does not require liability insurance for dog owners statewide, including owners of a dog formally designated dangerous. The dangerous-dog statute's only owner obligations are confinement and transfer-notice; it never mentions insurance, unlike Delaware, which requires $100,000 of liability coverage once a dog is declared dangerous.
Maryland counties and cities can also layer their own insurance or bonding rules on top of state law for dangerous-dog cases; those were not reviewed here.
Worth knowing
- Maryland has no statewide law blocking breed-specific ordinances. State law applies regardless of breed, but counties and cities can still pass their own breed rules.
- The current liability rule exists because a 2012 high court ruling briefly imposed automatic liability on pit bulls specifically; the legislature replaced it with the breed-neutral 2014 law.
- Rabies quarantine runs under a separate law, Md. Code Ann., Health-General § 18-320. A dog that bites a human or is otherwise exposed to rabies gets quarantined for a period the local health officer sets, and the owner pays for any ordered veterinary monitoring.
- Whether breaking a local leash ordinance counts as negligence in a private injury lawsuit is unsettled here; it likely depends on how the ordinance is written.
Other states
Rules change at the state line — a dog that is fine at home can put you under a different liability standard on vacation. See the full 50-state table.
General information, not legal advice, current as of 2026-07-13. Statutes get amended and courts reinterpret them — confirm anything that matters with the statute text linked above, your local animal control authority, or a Maryland-licensed attorney. Municipal ordinances can add requirements beyond state law.