Towing mirrors are legally required by the Australian Government if you are towing anything wider than your vehicle, and that includes RVs.
There is regular debate as to whether extended mirrors are required when towing. The field of vision required by a vehicle’s external mirrors is set out in the Australian Design Rule 14/02 – Rear Vision Mirrors below:
Rear Vision Mirrors
The field of vision must be such that the driver can see at least a 4 m wide flat, horizontal portion of the road which is bounded by a plane parallel to the median longitudinal vertical plane passing through the outermost point of the vehicle on the passenger’s side and which extends from 20 m behind the driver’s ocular points to the horizon (see Figure 5). In addition, the road must be visible to the driver over a width of 1 m, which is bounded by a plane parallel to the median longitudinal vertical plane and passing through the outermost point of the vehicle starting from a point 4 m behind the vertical plane passing through the driver’s ocular points.
- With most caravans, it is likely that you will require towing mirrors. You can either purchase extendable mirrors to replace your vehicle's existing mirrors or towing mirrors that will attach to your existing mirrors.
