The Traffic Signs Regulations and General Directions (commonly abbreviated to TSRGD) is the law that sets out the design and conditions of use of official traffic signs that can be lawfully placed on or near roads in Great Britain (England, Scotland and Wales) and the Isle of Man.

The regulations came into effect in 1965, and were the result of the review of British road signage carried out by the Worboys Committee.

The TSRGD came into force on 1 January 1965[1] to implement the re-signing recommendations of the Worboys Committee of 1963, with signage designs and typeface developed by Jock Kinneir and Margaret Calvert.

Since 1964, the TSRGD has been revised and re-issued several times to introduce new signage rules and features reflecting changes in road operations.

The current edition of the regulations came into force on 22 April 2016, with minor amendments in England and Wales in 2017.