A. Dogs under the age of four months if fastened securely by a rope, chain or leash or confined within the private property of the owner or person having control of the dog;

B. Dogs owned by or in custody or under the control of persons who are nonresidents of the city travelling through the city or temporarily sojourning therein for a period not exceeding thirty days;

C. Dogs duly licensed with the current license of an incorporated city within the county or the county;

D. Dogs brought into the city exclusively for the purpose of entering the same in any dog show or exhibition, and which are actually entered in and kept at such show or exhibition;

E. Dogs under the treatment in the custody or control of animal hospitals;

F. Dogs on sale in duly licensed pet shops, nor dogs owned, kept or controlled by any person, firm or corporation having a permit to keep and maintain a dog kennel; provided, that such dogs are kept enclosed within such pet shop or dog kennel;

G. Dogs under the ownership, custody and control of the owner of a dog kennel duly licensed under the provisions of the ordinance codified herein, or his or her duly authorized employee or agent when such dogs are removed from such kennel in the bona fide operation thereof for the purpose of exercise or training; provided, that any such dog bear an identification tag attached to its collar, which tag shall set forth the name of the licensed kennel. A dog bearing such identification tag shall be treated in all respects as any other dog in the event of its escape and subsequent impoundment. (Prior code § 4116.0)