60.46. The holder of the apportioned registration of the road vehicle must recalibrate the on-board recording device when tire size changes, the vehicle drive-train is modified or any other modification is made to the vehicle which affects the accuracy of the device. The holder must also maintain and calibrate the device in accordance with the manufacturer’s specifications.
In addition, the holder must maintain and preserve a calibration record for 5 years from 1 July preceding the current registration year.