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Harmonized Tariff Schedule

The Harmonized Tariff Schedule (HTS) provide classification provisions and duty rates for almost every item that exists. It is a system of classifying and taxing all goods imported into the United States. The HTS is based on the international Harmonized System, which is a global standard for naming and describing trade products, and consists of a hierarchical structure that assigns a specific code and rate to each type of merchandise for duty, quota, and statistical purposes. The HTS was made effective on January 1, 1989, replacing the former Tariff Schedules of the United States. It is maintained by the U.S. International Trade Commission, but CBP is responsible for interpreting and enforcing the HTS. 

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CBP Issues Harmonized System Updates
September 29, 2025 |Customs

CBP created Harmonized System Update 2536 on Sept. 25 (containing 86 Automated Broker Interface records and 19 Harmonized Tariff Schedule records) and Harmonized System Update 2537 on Sept. 26 (containing 36 ABI records and six HTS records). HSU 2536 includes the EU executive order tariff updates and the mushroom assessment increase. HSU 2537 includes a correction to the rates for mushroom fees.