# The Motor Vehicles (Driving Licences) Regulations 1987, Paragraph 9


Indicate his intended actions at appropriate times by giving appropriate signals in a clear and unmistakeable manner:
Provided that, in the case of a vehicle with a left-hand drive or of a disabled driver for whom it is impracticable or undesirable to give signals by arm, there shall be no requirement to give signals which cannot be given by mechanical means;

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Source: https://www.legislation.gov.uk/uksi/1987/1378/schedule/4/paragraph/9 (the official version)
Page: https://openlegislation.uk/motor-vehicles-driving-licences-regulations-1987/schedule-4/paragraph-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.