Pursuant to California Health and Safety Code Section 1920 and Rialto Municipal Code 6.04.110, all dogs in the City of Rialto are required by law to be vaccinated against rabies and licensed at four months of age. We have included a downloadable application and a listing of frequently asked questions regarding dog licensing. If you have further questions, please contact us by calling 909-421-7223 or 909-421-4987.