By law they have to have their DHLPP yearly as well as their rabies. But that is here, I know what it is where you live. Depending on your location and your vet, you can get a 3 year rabies shot. Just remember that the vaccination doesn't just stop after exactly 1 year. I recommend titering (sp), which tests your animal to see if he is in need of his vaccinations renewed. Ask your vet about it, it's a little healthier for your pet then getting shots because the law says it's time for them (don't worry it is legal to titer).