It's worth noting that drivers can no longer ride motor tricycles with a provisional licence. To drive any car, Category B is the classification you'll need; you can drive vehicles up to 3,500kg Maximum Authorised Mass, with up to eight. For example, when you pass your car test - a category B will appear on your driving licence. What is the DVLA check code? A DVLA check code is a unique, temporary access code that allows third parties to view your digital driving record.