# The Traffic Signs Regulations and General Directions 2016, Paragraph 4

Extent: E+W+S

The traffic light signals may be placed to face traffic proceeding in a particular direction if and only if—
(a) at least two identical sets of signals are placed so as to face traffic proceeding in that direction; and
(b) at least one of those sets of signals is a set of primary signals.

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Source: https://www.legislation.gov.uk/uksi/2016/362/schedule/14/part/6/paragraph/4 (the official version)
Page: https://openlegislation.uk/traffic-signs-regulations-and-general-directions-2016/schedule-14/part-6/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.