16. The number of axles of a truck or a farm motor vehicle, where it is part of a combination of road vehicles, is obtained by calculating the maximum number of axles with which the combination of road vehicles may be formed.
The calculation of the number of axles of a truck or a farm motor vehicle that forms part of a combination of road vehicles shall take into consideration:(1) any decrease in the number of axles reported to the Société upon payment of the sums to retain the right to operate the truck or farm motor vehicle;
(2) any increase in the number of axles reported to the Société after registration has been issued for the truck or farm motor vehicle.