# The Carriage of Dangerous Goods by Road Regulations 1996, Paragraph 9: Display of orange-coloured panels, UN numbers and emergency action codes


Any UN number or emergency action code required to be displayed in accordance with paragraphs 1 to 7 shall conform to the following specification—
(a) the UN number and, subject to paragraph (b) below, the emergency action code shall consist of black digits, measuring not less than 100 mm in height and not less than 15 mm stroke width;
(b) notwithstanding paragraph (a) above, where the emergency action code in column 5 of the Approved Carriage List indicates a white letter on a black background, that letter shall be displayed as an orange letter on a black rectangle which rectangle shall have a height and width not less than 10 mm greater than the height and width of the letter;
(c) subject to paragraphs 10(2) and 11, the UN number and the emergency action code shall be indelible and shall remain legible after 15 minutes engulfment in fire.

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Source: https://www.legislation.gov.uk/uksi/1996/2095/schedule/10/paragraph/9 (the official version)
Page: https://openlegislation.uk/carriage-of-dangerous-goods-by-road-regulations-1996/schedule-10/paragraph-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.