43. The Government may, by regulation,(1) fix tolls which may vary according to the classification of the road or according to the categories of motor vehicles that it determines or the number of persons carried per motor vehicle;
(2) exempt a category of motor vehicles, certain motor vehicles of a category or the motor vehicles carrying a determined number of persons from the application of the tolls;
(3) establish the minimum distance at which land may be used as a motor vehicle graveyard along an autoroute or connecting road, which may vary from one autoroute to another or from one section to another of an autoroute or connecting road;
(4) prescribe the standards of construction and installation of fences surrounding scrapyards that are visible from a road.