Western Australian Current Regulations Western Australian Current Regulations (1) Two warning lights
and a warning sign must be fitted to the front and rear of a bus.
(2) The warning lights
must be fitted —
(a) on
each side of, and the same distance from, the centre of the warning sign; and
(b) with
the edge of the warning sign not over 100 mm from the nearest point on
the lens of the warning lights; and
(c) with
the distance between the warning lights at least 300 mm at the nearest
point; and
(d) so
no part of the bus obstructs the light displayed —
(i)
30º to the left and right of the centre of each
light; and
(ii)
10º above and below the centre of each light.
(3) The warning lights
may be on the warning sign if the words or image on the sign are not obscured.
(4) The warning lights
at the same end of the bus must be fitted —
(a) at
the same height; and
(b) as
high as practicable; and
(c) with
the lowest point on the lens of each light not lower than midway between the
highest and lowest points on the bus body.
(5) If the centres of
the warning lights are under 1.8 m above ground level, no part of the
warning lights or warning sign may be on the left of the bus.
(6) This regulation
applies to a bus despite any requirement of a third edition ADR.