HS Codes, also known as the Harmonized Commodity Description and Coding System, or simply the Harmonized System, are a standardized international system to classify globally traded products. The system was first implemented in 1988 and is currently maintained by the World Customs Organization. The HS Convention, signed in 1983, has over 205 member countries. As signatories, each country agrees to classify its tariff and duty structure according to the HS Code categories.
The Harmonized System is used to ease global trade by creating unified categories to classify different types of goods.
The Harmonized System categorizes about 5,000 commodity groups in simple six-digit codes, broken down into 21 Harmonized System sections, 96 Harmonized System chapters, and thousands of headings.