HVO Updates provide you with important information about temporary or permanent changes to the road network that Main Roads is aware of, such as permit conditions; roadworks; changes in road conditions; and emergency detours.

It is your responsibility to ensure you are aware of any changes to the network via HVO Updates.

The guide outlines the specific regulations that apply to agricultural machinery and those vehicles escorting machinery in WA.

To obtain a copy, contact Department of Transport on 9216 8000 or visit www.dpi.wa.gov.au.