Categories > Prices > Trade Indexes > Import Price Indexes

Products have been classified by the Harmonized Tariff Schedule of the United States Annotated (TSUSA). Import prices are based on U.S. dollar prices paid by the U.S. importer. The prices are generally either "free on board" (f.o.b.) foreign port or "cost, insurance, and freight" (c.i.f.) U.S. port transaction prices, depending on the practices of the individual industry. The index for crude petroleum is calculated from data collected by the U.S. Department of Energy.

Series IDs in FRED maintain the harmonized code system. To see the hierarchy of codes, visit http://www.census.gov/foreign-trade/reference/codes/#hts.
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