Conn. Gen. Stat. § 14-23

The commissioner may make application to the Comptroller for a refund when any person surrenders his or her registration or number plate or plates on any noncommercial motor vehicle and is inducted into the armed forces, as defined in section 27-103 , during the then current registration period, such refund to be figured on a quarterly prorated basis but not to exceed three-quarters of the registration fee. The Comptroller, upon application of the commissioner and with the approval of the Attorney General, shall draw an order on the Treasurer in favor of any person who has been inducted into the armed forces for a refund of money paid for the registration of a motor vehicle.