Foreign Commerce — for purposes of motor carrier liability limits requirements, motor carriers in foreign commerce are subject to the same requirements as carriers in interstate commerce. As defined in the Motor Carrier Act (MCA) of 1980, the term means commerce between any place in a foreign country, or between the United States and a territory or possession of the United States, insofar as such transportation takes place within the United States. It also includes commerce between places in a foreign country or countries (e.g., trade between Canada and Mexico), insofar as such transportation takes place within the United States.