Heavy Vehicle (Vehicle Standards) National Regulation

A pair of daytime running lights may be fitted to a heavy motor vehicle.

A pair of daytime running lights fitted to a heavy motor vehicle with 4 or more wheels must be fitted with the centre of each light—

at least 600mm from the centre of the other light; and

not more than 510mm from the nearer side of the vehicle.

However, a pair of daytime running lights fitted to a heavy motor vehicle less than 1300mm wide may be fitted with the centre of each light not less than 400mm from the centre of the other light.

When on, a daytime running light fitted to a heavy motor vehicle must—

show a white or yellow light visible from the front of the vehicle; and

not use more than 25W.

Note—The third edition ADRs only allow white daytime running lights.

Daytime running lights fitted to a heavy motor vehicle must be wired so they are off when a headlight, other than a headlight being used as a flashing signal, is on.

In this section—daytime running lights means lights fitted to the front of a vehicle for improving visibility in the daytime.