A vehicle must have clearance lights if it measures...
A)more than 4 metres tall.
B)2 or more metres wide and 6 or more metres long.
C)more than 2.10 metres wide.Correct
Clearance lights are mandatory for vehicles more than 2.10 metres wide, and optional for those measuring between 1.80 and 2.10 metres wide, when travelling between sunset and sunrise or under conditions of reduced visibility. When the sidelights are switched on, the clearance lights will also switch on automatically.