Western Australian Current Regulations Western Australian Current Regulations (1) There must be
fitted to each towed vehicle towed on a road 2 stop lights —
(a) each
of which, when lighted, displays a red light clearly visible in sunlight at
all distances up to 60 m to the rear of the towed vehicle; and
(b) each
of which is lighted when the foot brake of the towing vehicle is applied.
(2)
Subregulation (1) does not apply if the combination of which the towed
vehicle is a part is fitted with a flashing amber light in accordance with
regulation 433 and that light is operating whenever the combination is
being moved on a road.