To drive heavy vehicles in Australia, you need to get an additional heavy vehicle licence, beside the standard class C licence. These heavy vehicle licences are offered by state transport authorities. However, to qualify for these licences, you first need to undertake the requisite training. This training is available at any registered training institution (RTO) in your state. There, you will receive instructions on how to handle a heavy vehicle of the particular vehicle class you intend to get a licence for.