Paragraph 3
(1)
The permitted limits of luminance for advertisements falling within Class 4A or 4B are, subject to sub-paragraph (2), for an illuminated area measuring not more than–
(a)
0.5 square metre, 1,000 candela,
(b)
2 square metres, 800 candela,
(c)
10 square metres, 600 candela,
and for any greater area, 400 candela.
(2)
For the purposes of calculating the relevant area for the permitted limits–
(a)
each advertisement, or in the case of a double-sided projecting advertisement, each side of the advertisement is to be taken separately;
(b)
no unilluminated part of the advertisement is to be taken into account.