World Customs Organization The Harmonized Commodity Description and Coding System generally referred to as "Harmonized System" or simply "HS" is a multipurpose international product nomenclature developed by the World Customs Organization (WCO)
Harmonized System (HS) Codes - International Trade Administration [20MB] The HS is administrated by the World Customs Organization (WCO) and is updated every five years It serves as the foundation for the import and export classification systems used in the United States and by many trading partners