Conn. Gen. Stat. § 14-101: Turn signals.

Any person who operates on any highway any motor vehicle so constructed or so loaded that the operator is unable to clearly indicate by hand signals to both approaching and following traffic his intention of stopping or turning, unless such motor vehicle is equipped with a turn signal or signalling device, or fails to cause such turn signal or device to be maintained, at all times, in good and sufficient working order, or fails to use the same when making any stop or turn, or the owner of any such motor vehicle who allows it to be so operated, shall be fined the amount designated for such infraction.