reg 53
In forceExternal cabin lights
53 External cabin lights
(1)
A heavy motor vehicle fitted with front clearance lights may also have additional forward-facing lights on or above the roof of its cabin.
(2)
The additional forward-facing lights must be spaced evenly between the front clearance lights, with their centres at least 120mm apart.
(3)
When on, an additional forward-facing light fitted to a heavy motor vehicle must—
(a)
show a white or yellow light; and
(b)
not use more than 7W.
(4)
In this section—
cabin, of a heavy motor vehicle, includes a sleeper berth located immediately adjacent to the vehicle’s cabin.
sleeper berth means a sleeper berth within the meaning of ADR (Definitions and Vehicle Categories).
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