While off the owner’s premises, a vicious animal shall at all times be restrained by a substantial metal or leather chain or leash not exceeding six feet in length, held by and under the control of a responsible adult, and the animal shall wear a muzzle approved by the Animal Control Officer. “Substantial” shall have the same meaning as set out in Section 10.40.070.
(32-12/92 § 10.12.130)