(1) The Minister may make regulations for all or any of the following purposes:

(a) specifying the maximum weight unladen of mechanically propelled vehicles, of vehicles drawn thereby and of combinations of vehicles;

(b) specifying the maximum weight laden of mechanically propelled vehicles, of vehicles drawn thereby and of combinations of vehicles;

(c) specifying the maximum weight to be transmitted to the ground or any specified area of the ground by any part of a mechanically propelled vehicle or of a vehicle drawn thereby;

(d) specifying the manner in which and the conditions under which any particular weights (other than weights unladen) prescribed by the regulations are to be ascertained.

(2) Different regulations may be made under this section:

(a) in respect of different classes of vehicles or of combinations of vehicles,

(b) for different circumstances.

(3) A person shall not use on a public road: