also if u get a dog that is 16 weeks or more even like 6 month's from a breeder i am pretty sure most of them dont have all there vaccinations maybe the first two cuz its important they are dewarmed so don't think ur getting away with it easy cuz they are a couple month's older even if they are and the person says they have all their shot's u should always be sure and get them compleatly checked by ur vet and get them there for sure shot's from ur vet so they can keep it documented!!