Rabies Vaccination Required RSA 436:100
Every dog 3 months of age or older shall be vaccinated against rabies. Young dogs shall be vaccinated within 30 days after they have reached 3 months of age. Unvaccinated dogs acquired or moved into the state shall be vaccinated within 30 days after purchase or arrival, unless under 3 months of age, as specified above. First vaccination good for 1 year, subsequent vaccination good for 3 years.