Trucks will be able to carry more hay and fodder to drought affected farmers due to a decision made by the Federal Government on Thursday.
Heavy vehicles up to a maximum height of 4.6 metres and 2.83 metres wide will no longer require a permit to access the existing state-controlled road networks.
Previously access was limited for Class 3 vehicles up to 2.6 metres wide and 4.3 metres high.
The notice will remove the need for up to 6,000 consents a year.
It is estimated farming operators will save the equivalent of up to 54,000 days per year applying and waiting for permits.
Permits will still be required through the NHVR Portal (www.nhrv.gov.au/drought) for access to some local government roads.