nancy brown
Puppydogs:
Back in the day before I knew what I know now about the damage vaccines can do to an animal, we did what we thought was "best" for our Golden retriever. Our vet at the time, to her credit, informed us that titres could instead be done (of course this was after a number of years of regular vaccinations (:) and would be accepted as proof of immunity if ever needed. Since your dog has already had vaccinations, titer testing should show antibodies.
Perhaps that is the case where you live?
Search this site and you will find quite a bit about the rabies vaccine and the problem you are dealing with.