Allows a limited number of goods and services to cross international borders without paying a tariff and without limitations imposed by quotas. B Allows goods and services to cross international borders without paying a tariff and without limitations imposed by quotas plus a common set of tariffs toward nonmembers. C Allows goods and services to cross international borders without paying a tariff and without limitations imposed by quotas plus a common set of tariffs toward nonmembers plus an agreement to allow the free mobility of inputs such as labor and capital plus a substantial coordination of policies and a common currency. D Allows goods and services to cross international borders without paying a tariff and without limitations imposed by quotas plus a common set of tariffs toward nonmembers plus an agreement to allow the free mobility of inputs such as labor and capital. E Allows goods and services to cross international borders without paying a tariff and without limitations imposed by quotas. X This is not a type of regional trade agreement.