Yes. The law requires it. Public Health Law requires all dogs, cats, and ferrets to be vaccinated by 4 months of age. A second vaccination must be given within one year of the first, and actively immunized against rabies thereafter.
Also, if your pet is not vaccinated and bites someone or is bitten by an animal, your pet may be quarantined for 6 months or euthanized at your expense.
Get your pet vaccinated at an upcoming rabies clinic.