I've just had a closer look at the NPPL website. It's now clear to me (I think) that there are a separate set of NPPL (Microlight) examinations. Therefore this just leaves the slight doubt as to whether the chap needs to pass all of the JAR FCL PPL (A) examinations (as per the website) or just the Aircraft General (as BEagle states). I find it hard to believe that the NPPL website has the wrong information. But then who knows??? I'll give the good folk down at Gatwick a call tomorrow to get the definitive answer.