Town officials are reminding residents that Burlington’s annual winter parking ban took effect Dec. 1. Under the ban, vehicles cannot be parked or unattended on a street between the hours of 2-8 a.m. through April 1. Violators will be subject to a $50 fine per offense. With the winter season arriving, officials are also encouraging residents who have not already done so to sign up for the town’s Connect5 alert system. The program allows town officials to rapidly disseminate time-sensitive information by phone or e-mail on various subjects to all town residents and businesses who register for the service. It supplements the town’s Reverse 911 system in which officials send automated messages to all households in town during emergencies. The Connect5 system augments Reverse 911 because it is available for use by all town departments and for community announcements that are not necessarily of an emergency nature. Those who register for Connect5 can opt to have messages sent to their regular phone, cellphone, e-mail, or all three. To sign up for the system, go to www.burlington.org/residents/connect-cty.php. For more information, call 781-505-1169.