Fireworks illegal, but sparklers okay
Fireworks that fly, such as firecrackers, bottle rockets, Roman candles and spinners, are illegal in New York, no matter where they were purchased. But state law does allow counties to legalize sparklers, and both Putnam and Dutchess have done so.
Permitted sparklers include fountains (cylindrical and cone), sparklers on wooden sticks (but not metal), smoking devices, snakes, confetti-filled party poppers and paper-wrapped snappers. Sparklers can only be legally sold between June 1 and July 5, and you must be at least 18 years old to use them.