Heavy Vehicle (Vehicle Standards) National Regulation

Two warning lights and a warning sign must be fitted to the front and rear of the bus.

The warning lights must be fitted—

on each side of, and the same distance from, the centre of the warning sign; and

with the edge of the warning sign not more than 100mm from the nearest point on the lens of the warning lights; and

with the distance between the warning lights at least 300mm at the nearest point; and

so no part of the bus obstructs the light displayed—

30° to the left and right of the centre of each light; and

10° above and below the centre of each light.

The warning lights may be on the warning sign if the words or image on the sign are not obscured.

The warning lights at the same end of the bus must be fitted—

at the same height; and

as high as practicable; and

with the lowest point on the lens of each light not lower than midway between the highest and lowest points on the bus body.

If the centres of the warning lights are less than 1.8m above ground level, no part of the warning lights or warning sign may be on the left side of the bus.

Any requirement of a third edition ADR about warning lights or warning signs does not apply to a bus to which this Division applies.