Western Australian Consolidated Regulations (1) A pair of daytime
running lights may be fitted to a motor vehicle.
(2) A pair of daytime
running lights fitted to a vehicle with 4 or more wheels must be fitted with
the centre of each light —
(a) at
least 600 mm from the centre of the other light; and
(b) not
over 510 mm from the nearer side of the vehicle.
(3) However, a pair of
daytime running lights fitted to a motor vehicle under 1300 mm wide may
be fitted with the centre of each light not under 400 mm from the centre
of the other light.

Location of daytime running lights on a vehicle
(4) When on, a daytime
running light must —
(a) show
a white or yellow light visible from the front of the vehicle; and
(b) not
use over 25 watts power.
(5) Daytime running
lights must be wired so they are off when a headlight, except a headlight
being used as a flashing signal, is on.
(6) For
subrule (3), the width of a vehicle is measured disregarding any
anti-skid device mounted on wheels, central tyre inflation systems, lights,
mirrors, reflectors, signalling devices and tyre pressure gauges.