Harmonized System (HS) codes are internationally standardized 6-digit codes that denote the product category and are used to classify traded goods. Ten-digit codes, which include the HS code as the first six digits, are used to determine import duties and regulations. These codes are referred to as Harmonized Tariff Schedule (HTS) codes by the U.S., TARIC codes in the EU, and may have different names in other countries and regions. The 10-digit codes are country-specific, meaning one item will have a unique code for each country. Schedule B codes are also U.S.-specific 10-digit codes used to classify exported goods, maintained by the U.S. Census Bureau . Tariff codes generally refer to the aforementioned codes used to impose duties on imports, vary by country, and are often based on the HS system.
- Harmonized System (HS) codes — 6-digit internationally standardized codes to classify traded goods
- Harmonized Tariff Schedule (HTS) codes and TARIC codes — 10-digit country-specific codes used to determine import duties and regulations
- Schedule B codes — 10-digit country-specific codes used by the U.S. to classify exported goods
- Tariff codes — the general term to refer to the codes listed above
