(A) No person owning, keeping, possessing, harboring or maintaining any dog shall allow it to be at large, as defined in A.J.C.C., Vol. I, § 6-1-1. However, notwithstanding such limitations, a dog is deemed to be not at large under the following circumstances:
(1) While it is restrained by a leash, chain, rope or cord of not more than 6 feet in length, and of sufficient strength to control action of the dog.
(2) While it is used for control of livestock, while being used or trained for hunting, while being exhibited or trained at a kennel club event, or while engaged in races approved by the Arizona Racing Commission.
(3) While it is actively engaged in dog obedience training, accompanied by and under the control of the owner or trainer, provided that the person training the dog has in their possession a dog leash of not more than 6 feet in length, and of sufficient strength to control the dog, and further, the dog is actually enrolled in or has graduated from a dog obedience training school that has been approved by an Enforcement Officer.
(B) The Enforcement Officer shall apprehend and/or impound any dog running at large. The Enforcement Officer will enter private property curtilage (not the interior of a residence without permission of an owner or a search warrant) to apprehend any dog that has been running at large. This entry shall be in a reasonable pursuit, and shall not include entry into a secured enclosure that confines a dog, except at the invitation of the occupant or owner.