First time I heard that rumour was around 96 I think and the firm even welded a tail board on the back of my 18ft bed and told me the 21's would just have to sit on top. They gave up after I took the sthill saw to the fourth one.
Never heard anything new but it wouldn't surprise me as there seems to be almost as many changes with VOSA and driving regulations as there is in scaffolding. I wouldn't imagine a tail board being too much of a problem nowadays though as any scaffold truck I see has a 21ft bed and the ladders would still need to hang out the back, which in itself wouldn't be illegal. Would the new drivers CPC not cover any load retaining training?
obviously vosa never pulled me so they cant have been that fussed - i always thought that anything over 1m had to have a marker board on it though