US International Trade Commission Tariff & Trade DatabaseU.S. import statistics, U.S. export statistics, U.S. tariffs, U.S. future tariffs and U.S. tariff preference information are available on a self-service, interactive basis. International trade data are available for years 1989- present on a monthly, quarterly, annual, or year-to-date basis and can be retrieved in a number of classification systems, including the Harmonized Tariff Schedule (HTS), the Standard International Trade Classification (SITC), or the North American Industry Classification System (NAICS).