Staging

If you passed your driving test on or after 1 January 1997 and you want to learn to drive a larger vehicle, you may be able to apply for the higher category. Once you have obtained provisional entitlement on your driving licence you can take the test in that category. For example, a driver must hold a full car licence (category B) before being able to apply for a provisional licence to drive a lorry, minibus or bus.

This is known as staging and will apply from the smallest to the largest vehicles.

For more information click here (Source: DirectGov)