Yes, things have certainly changed since I got my bike licence in 1965. Trust the british government to make it as complicated as possible. I remember when I got my PSV (bus) licence in 1981. It was just a test for single deckers or double deckers. When they put the licence on the new plastic licences, instead of the separate paper ones, they changed the vehicle types to what size trailer it could pull. Thing is, I've never seen a bus puling a trailer in England. Our American members may be surprised to know that, in keeping with English beaurocracy, as well as the plastic licence, there's also a paper licence that goes with it.