Every person owning, maintaining or harboring a dog in the City shall apply to the City Clerk for a license for each dog so owned, maintained or harbored, and such application shall show whether such dog is a male or female.
   After the payment of the fee set forth in Section 507.04, the City Clerk shall issue to such person a license together with an official tag, which tag shall be fastened to the collar of the dog so licensed; provided, however, that before issuing such license tag there shall be exhibited to the City Clerk a certificate from a registered professional veterinarian to the effect that the dog for which a license is applied has been duly and properly inoculated for rabies.
(1967 Code §3-9)