That's useful to know. I imagine many MOTers will turn a blind eye (I've know several people who get away with HID conversions) but forewarned is forearmed.
"Y mae dafad ddu ym mhob praidd" 1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10