Nearly 40 per cent of Cootes Transport vehicles taken off the road in Victoria have been cleared to resume fuel deliveries to service stations.
VicRoads had grounded 79 prime movers and trailers for severe defects during a sweeping fleet review prompted by a fuel tanker explosion in Sydney that involved a Cootes vehicle.
But the state road safety authority had cleared 31 vehicles to return to the road by Monday morning, a VicRoads spokeswoman said.
Another 64 vehicles with defect notices for less severe issues such as frayed seat belts were also given the all-clear on Monday following repairs.
More than 200 vehicles have been inspected in the state since last week, with 181 receiving a defect notice.
A total of 48 Cootes vehicles remain grounded in Victoria without a road worthy certificate.
The NSW Roads and Maritime Services also grounded 10 vehicles and issued the company with 244 defect notices during its own inspections.The audit in both states had impacted on some petrol deliveries in Melbourne, Sydney and Brisbane.