No person shall own, keep or harbor a dog or cat over 16 weeks of age within the city and borough limits unless the dog or cat has received an immunization for rabies. (Ord. 02-1656 § 4(A), 2002; Ord. 95-1302 § 4(A), 1995; B.C.S. § 9.04.100; S.G.C. § 8.04.100.)