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His Royal Highness The Duke of Edinburgh, 10 June 1921 to 9 April 2021

Read about the arrangements following The Duke of Edinburgh’s death

Guidance on the criteria for signs and how to design them.

First published:
22 December 2015
Last updated:


Procedure and advice guidance (PAG) 106/16: use of vehicle activated signs and speed indicator devices on the trunk road network , file type: PDF, file size: 502 KB

502 KB
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