Answer:
Cabotage
Step-by-step explanation:
Cabotage is usually defined as the process of transportation of both goods as well as passengers, that are carried from one place to another place by a transport operator which is originally from another country.
This was initially implemented for the shipping of goods, from one port to another, following the coastal routes. But in today's world, they are also useful in the aviation services, roads and railway means of transportation.
The Single European act proposed to make changes in this cabotage process, which were asked to abolish the restrictions that are commonly placed on the foreign truckers.