# Road Vehicles Lighting Regulations (Northern Ireland) 2000, Paragraph 2


The illuminable sign referred to in regulation 17A(1) and (2) shall—
(a) be of a size and colour indicated in diagram 2;
(b) display the “schoolchild” pictogram shown in that diagram;
(c) be illuminated by a lamp which is of a type that when switched off the illuminable sign shall show only a blank grey or black face;
(d) emit a luminous intensity of not less than 4 candela and not more than 60 candela measured in the reference axis; and
(e) in the case of illumination provided by Light Emitting Diodes (LEDs) they shall have a minimum pitch of 12mm, horizontally and vertically.

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Source: https://www.legislation.gov.uk/nisr/2000/169/schedule/22A/paragraph/2 (the official version)
Page: https://openlegislation.uk/road-vehicles-lighting-regulations-northern-ireland-2000/schedule-22A/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.