Tariffline data is the harmonized original data submitted by the countries. The harmonization is applied to all data dimensions except the commodity; therefore, data at the tariffline level provides codes used at the national level and may contain product codes at more than the 6-digit HS as may be available. Further, the value is converted to USD. The tariffline data does not have the aggregated high-level data (such as a TOTAL commodity, WORLD as partner), there is no outliers detection nor quantity estimations, and the data is not converted to other classifications such as BEC, SITC. In brief, it is very close to the original data.

See also: https://uncomtrade.org/docs/content-of-data/#tariffline