# The Traffic Signs Regulations and General Directions 2016, Paragraph 7

Extent: E+W+S

Where—
(a) a sign provided for in Schedule 12 includes a distance to a junction; or
(b) is a diagram A sign provided for in Part 22 of that Schedule (services) and includes a distance,
that distance must be expressed in miles denoted by the letter “m” and must be one of the following: “2 m”, “1¾ m”, “1⅔ m”, “1½ m”, “1⅓ m”, “1¼ m”, “1 m”, “¾ m”, “⅔ m”, “½ m” or “⅓ m”.

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Source: https://www.legislation.gov.uk/uksi/2016/362/schedule/18/part/3/paragraph/7 (the official version)
Page: https://openlegislation.uk/traffic-signs-regulations-and-general-directions-2016/schedule-18/part-3/paragraph-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.