xmlns:atom="http://www.w3.org/2005/Atom"
1. Indicate intended actions at appropriate times by giving appropriate signals in a clear and unmistakable manner.
In the case of a test taken on a vehicle with a left-hand drive or by a disabled person 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.