• Foreign trade is for the purposes of road carrier liability limitation requirements, road carriers in foreign trade are subject to the same requirements as carriers in interstate trade. As defined in the Motor Carriers Act (MCA) of 1980, this term means trade between any place in another country, or between the United States and a territory or possession of the United States, so long as such transportation takes place within the United States. . It also includes trade between places in another country or countries (for example, trade between Canada and Mexico) if such transportation takes place within the United States.