barrier to trade
noun[C]
ukuspluralbarriers to trade(alsotrade barrier)COMMERCE,ECONOMICS
something, such asofficialrulesortariffs(=chargesforgoodsenteringacountry)that makesbuyingandsellingbetweencountriesdifficult:
Accession to theEuropeanUnionremovedthe last fewbarrierstotradefor all eight newcentralEuropeancountries.