Conn. Agencies Regs. § 14-227a-21a
At the time of installation, the installer shall provide the owner of the motor vehicle, and the operator if different from the owner, with a written schedule of required inspections. An initial service visit shall be conducted not later than thirty (30) days after the installation of the IID, and monthly service visits shall be conducted in service periods of twenty-five (25) to thirty (30) days. The installer shall inspect the IID every twenty-five (25) to thirty (30) days to ensure that the device is working properly and, in this regard, shall perform any necessary maintenance or calibration and shall record the mileage from the motor vehicle's odometer. If the approved applicant or installer removes and replaces an existing device, or any part thereof, in connection with the maintenance or calibration of the device, such removal and replacement shall be completed at a service center.
Conn. Agencies Regs. § 14-227a-21a