# The Traffic Signs Regulations and General Directions 2016, Paragraph 53

Extent: E+W+S

The colour of the telephone symbol and arrow must be varied so that they are—
(a) black if the road is a non‑primary route; or
(b) dark green if the road is a primary route.

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Source: https://www.legislation.gov.uk/uksi/2016/362/schedule/11/paragraph/53 (the official version)
Page: https://openlegislation.uk/traffic-signs-regulations-and-general-directions-2016/schedule-11/paragraph-53
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.