My dogs get vaccinated every 3 yrs for rabies (required by law) and yearly for the others. My vet recommends all puppy shots, then annual for about the first 2-3 years, at which point switch to about every other year unless the dog is around other dogs or goes where lots of other dogs go (a dog park for instance), if that's the case she recommends annually. Because they go a lot of places with me and are around other dogs a lot I figured I'd better keep them annual. My cats are another story...I only get them the FVRCP combo and that only because 1 of mine has feline herpes, which I'd rather prevent the others from getting. They don't go outside at all so I don't have to worry about that.