# The Traffic Signs Regulations and General Directions 2016, Paragraph 6

Extent: E+W+S

“50” may be varied to any of the legends or symbols (as the case may be) shown in the diagram at item 1, 3, 4, 5, 6, 8 or 9 and an identification number may be added to the backing board or post in horizontal or vertical format as appropriate.

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Source: https://www.legislation.gov.uk/uksi/2016/362/schedule/15/part/3/paragraph/6 (the official version)
Page: https://openlegislation.uk/traffic-signs-regulations-and-general-directions-2016/schedule-15/part-3/paragraph-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.