Roads Act 1920
Power to modify or determine charges for use of vehicles on roads.
10. Where any persons are, whether by virtue of any Act or otherwise, liable to pay any sums, by way of mileage charges or other annual payments, in respect of the use of any road by their vehicles, the Minister may, on an application by those persons in that behalf, and after considering any objections made by any person interested, suspend, modify or determine the liability to make the payment, as he shall think fit.