Regulation 4 Classes for which licences may be granted
A licence authorising the driving of motor vehicles of a class included in any category or sub-category mentioned in Part I of Schedule 1 may be granted to a person who is entitled thereto by virtue of—
holding or having held a full licence, a full Great Britain licence, full British external licence, full British Forces licence, exchangeable licence or Community licence authorising the driving of vehicles of that class; or
having passed a test authorising the driving of motor vehicles of that class or a Great Britain or Gibraltar test corresponding to such a test.
A licence authorising the driving of motor vehicles of a class included in any category or sub-category mentioned in Part 2 of Schedule 1 may not be granted to a person unless, at a time before 1st January 1997—
in the case of an application for a full licence—
he held a full licence authorising the driving of vehicles of a class included in that category, or
he passed a test which at the time it was passed authorised the driving of motor vehicles of that class or a Great Britain test corresponding to such a test;
in the case of an application for a provisional licence, he held a provisional licence authorising the driving of vehicles of a class included in that category.