New drivers who receive their HR licence will face some challenges as they gain experience driving heavy rigid vehicles on the job. A heavy rigid vehicle is classified as any rigid vehicles which has a GVM or greater than 8 tonnes and which has 3 or more axles. They may also tow trailers which do not exceed 9 tonnes in GVM.
Upgrading you driver license to an HR license from a car license is the biggest allowable license upgrade in Australia. It is important for drivers to understand that there are many differences between driving an HR class vehicle and driving a standard car because the size of the HR vehicle will affect the position you drive on the road, your turning lines, perspective, maneuverability, gearbox operation and many other factors.