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When a heavy goods service vehicle is parked on a road at night, from what distance must its rear red light nearest the centre of the road be visible?
When the heavy goods service vehicle is parked on a road at night, its rear red light nearest the road centre must be visible from 100 metres.
Related guidance
This is a specific parked-vehicle lighting requirement. Do not substitute the visibility distance for ordinary driving tail lights or projecting-load warning lamps. The parking position must also be legal and safe.