Why it matters: Which licence for which trailer: B, B+code 96, BE

Driving without the correct licence is driving without a valid licence: uninsured in a crash, plus a hefty fine and being stopped on the Utrecht ring road with no permission to continue. A heavy combination brakes and steers very differently from an ordinary car. Especially the 'plain B is allowed up to 3,500 kg combination' rule is often forgotten — people needlessly think they need BE, or, far more dangerously, tow a 4,000 kg combination on B alone.