Correct answer
Two visible at the front and two visible at the rear.
The clearance light is intended to indicate the overall width of the vehicle, and on certain vehicles and trailers it complements the position lights to indicate their bulk. It is compulsory for vehicles over 2.10 metres wide and optional for vehicles between 1.80 and 2.10 metres wide, and it must consist of two white lights visible at the front and two red lights visible at the rear.
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One visible at the front and one visible at the rear.
Two visible at the front and one visible at the rear.
Two visible at the front and two visible at the rear.
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