Every person keeping a dog over the age of four months shall cause such dog to be vaccinated with a rabies vaccine by a person licensed to practice veterinary medicine by the state on or before the latest of the following dates:
(A) One year after vaccination with tissue phenolized vaccine;
(B) Two years after vaccination with chick embryo vaccine;
(C) Fifteen days after first acquiring such dog;
(D) Fifteen days after bringing such dog into the city, except that this section shall not apply to any dog exempt from registration under the provisions of this law.
(`83 Code, § 6.20.010)