For information on existing trade barriers, please see the most recent National Trade Estimate Report on Foreign Trade Barriers published by USTR. Information on agricultural trade barriers can be found at the website of the Foreign Agricultural Service. To report existing or new trade barriers and get assistance in removing them, contact either the U.S. Mission to the European Union or the Trade Compliance Center. To look up duties and tariffs use, use the Customs Info Database tariff look-up tool, available on trade.gov (free registration required), to estimate duties and taxes.