Paragraph 1
Read in good daylight (with the aid of glasses or contact lenses if worn) a registration mark fixed to a motor vehicle and containing letters and figures 79.4 millimetres high at a distance of—
(a)
20.5 metres, in any case except that mentioned below; and
(b)
12.3 metres, in the case of a driving test carried out on a vehicle of a class included in group K only.