# The Carriage of Dangerous Goods by Road Regulations 1996, Paragraph 12: Display of orange-coloured panels, UN numbers and emergency action codes


Where the size and construction of the vehicle are such that the available surface area is insufficient to display orange-coloured panels conforming to the dimensions specified in figures 1, 2 or 3, as the case may be, the dimensions of the orange-coloured panels displayed may be reduced to 300 mm at the base, 120 mm in height and with a black border measuring 10 mm.

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Source: https://www.legislation.gov.uk/uksi/1996/2095/schedule/10/paragraph/12 (the official version)
Page: https://openlegislation.uk/carriage-of-dangerous-goods-by-road-regulations-1996/schedule-10/paragraph-12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.