Potentially Dangerous Animal - an animal that has been impounded three times within a 12-month period or on three separate occasions has been observed by an animal control officer uncontrolled and off its owner's property.

Dangerous Animal - an animal that demonstrates any of the following behavior: Any animal previously determined to be and currently listed as a potentially dangerous animal which, after its owner or keeper has been notified of this determination, displays the behavior of a potentially dangerous animal.

• Any animal that chases or approaches a person, domestic animal or livestock, anywhere other than on the property of the owner or custodian, in a menacing fashion or apparent attitude of attack, including, but not limited to, behavior such as growling or snarling.
• Any animal which, when unprovoked, engages in any behavior that requires a defensive action by any person to prevent bodily injury when the person and the animal are off the property of the owner or keeper of the animal.
• Any animal which, when unprovoked, bites a person or domestic animal or livestock causing a less than severe injury.
• Any animal which, when unprovoked, has seriously bitten, inflicted injury, or otherwise caused injury attacking any domestic animal or livestock off the property of the owner or keeper of the animal.
• Vicious Animal - an animal that demonstrates the following behavior: Any animal which, when unprovoked, inflicts severe injury on or kills a human being, in a place were such person is conducting himself or herself peacefully and lawfully.
• Any animal which, when unprovoked, inflicts severe injury on or kills a domestic animal or livestock.
• Any animal which has been trained to fight or which is owned or harbored for this purpose; and any animal previously determined to be and currently listed as a dangerous animal which continues the behavior.