The above approval mark affixed to a vehicle shows that the vehicle type concerned has been approved in the Netherlands (E 4) pursuant to Regulations Nos. 73 and 31[1]. The first two digits of the approval numbers indicate that, at the dates when the respective approvals were granted, Regulation No. 73 included the 01 series of amendments and the approval was granted for a completed vehicle, and Regulation No. 31 included the 02 series of amendments. a0c0