As used in this chapter:
   (a)   “Dog” includes female and male dogs.
   (b)   “Owner” means a person who has a right of property in a dog, keeps or harbors a dog, has a dog in his or her care, acts as its custodian or knowingly permits a dog to remain on or about any premises occupied by him or her.
   (c)   “At large” means off the property of an owner and not under the control of a responsible person.
   (d)   “Inoculation against rabies” means the injection, subcutaneously or otherwise, as approved by the Department of Agriculture of the State, of a canine antirabic vaccine which is approved by such Department.
   (e)   “Department of Agriculture” means the Department of Agriculture of the State.
   (f)   “Restraint” means controlled by a leash, at heel beside a responsible person or obedient to that person’s commands, within a vehicle being driven or parked on a street or within the property limits of an owner or keeper.