§ 8. Every owner of a dog or cat four months or more of age shall cause such dog or cat to be inoculated against rabies by a licensed veterinarian. Every dog or cat shall have a second rabies vaccination within one year of the first vaccination andevery year thereafter. However, if the vaccine used is one recognized by the Illinois Department of Agriculture for a three year period of immunity, and the dog or cat is over twelve (12) months of age at the time of inoculation, the interval between inoculations may be extended to three (3) years. Evidence of such rabies inoculation shall be entered on a certificate the form of which shall be approved by the Board and which shall be signed by the licensed veterinarian administering the vaccine.