What Euroclass does my vehicle have?

Hello, I bought a vehicle (Mitsubishi Fuso Canter 3C13) two years ago from a dealer near the Dutch border (i.e. an import vehicle). Now that I want to finish my self-employment and sell the vehicle, I need the exact information about the Euro class because I am often asked about it by dealers. Can someone tell me where to find this information in the vehicle license? I have heard that it is often in fields 14 or 15, but I am not interested in it. I would be very happy about your help! Thank you very much and thank you very much.