The Rabies Vaccine is considered a core vaccination. Meaning, all dogs, regardless of their lifestyle, should receive this vaccination. Rabies is a deadly virus that can be transmitted between mammals. The rabies virus poses a significant human health risk as it is zoonotic; Vaccinating dogs for rabies is required by law. The vaccination age for pets can differ by state.Generally, a dog is initially vaccinated against rabies between 12-16 weeks of age. The frequency of vaccination will depend on age and vaccine history. Typically, after the initial vaccine is administered, a rabies booster is given one year later, considered protective for three years. If your pet has encountered or been bitten by an animal suspected of having rabies, your vet should be contacted, and a rabies booster should be administered.