# The Traffic Signs Regulations and General Directions 2016, Paragraph 16

Extent: E+W+S

(1) Subject to sub-paragraphs (2) to (4), the sign may remain in place for a period of six months beginning with the day the sign is placed.
(2) The period may be extended with the approval of—
(a) the Secretary of State in relation to a road in England;
(b) Scottish Ministers in relation to a road in Scotland; or
(c) Welsh Ministers in relation to a road in Wales.
(3) In the case of a sign conveying a change in route number, the period is two years, not six months.
(4) Sub-paragraph (1) does not apply to a sign—
(a) placed only in connection with the execution of works on or near a road, or a temporary obstruction;
(b) conveying information about check points at which goods vehicles or public service vehicles may be required to stop; or
(c) indicating diversions.

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Source: https://www.legislation.gov.uk/uksi/2016/362/schedule/13/paragraph/16 (the official version)
Page: https://openlegislation.uk/traffic-signs-regulations-and-general-directions-2016/schedule-13/paragraph-16
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.