Modifications to the Harmonized Tariff Schedule (HTS)

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The following are a list in reverse chronological order of all the instruments that have modified the Harmonized Tariff Schedule (HTS). The source of most instruments that modify the HTS have been published in the Federal Register. Other sources may include public laws and changes approved by the Committee for Statistical Annotation of Tariff Schedules (formulated pursuant to section 484(f), Tariff Act of 1930, as amended). Beneath each instrument are tags which filter the entire list based on the categories selected by staff in the Office of Tariff Affairs & Trade Agreements. For a list of definitions for the tags underneath the legal instruments that modify the HTS please visit the Modifications to HTS Glossary page.

Disclaimer: The information on this page is intended to assist users of the HTS. It does not represent the views of the Commission and should not be viewed as legally authoritative. Please consult any cited sources for more help, as well as the informed compliance publications of U.S. Customs and Border Protection. If you have a question regarding anything on this page, please visit the HTS Help contact page.

Legend: Source Type Legal Authority Country/Economy

Displaying 1 - 25 of 263

To Facilitate Positive Adjustment to Competition From Imports of Fine Denier Polyester Staple Fiber (89 Fed. Reg. 92015), effective November 23, 2024 .

Presidential Proclamation

Global Safeguards

To Modify the Harmonized Tariff Schedule of the United States and for Other Purposes (86 Fed. Reg. 73593), effective January 27, 2022 .

Presidential Proclamation

Determination Under the African Growth and Opportunity Act (82 Fed. Reg. 39940), effective August 17, 2017 .

Other Tariff Legislation

To Implement the World Trade Organization Declaration on the Expansion of Trade in Information Technology Products and for Other Purposes (81 Fed. Reg. 44129), effective July 1, 2016 .

Presidential Proclamation

Other Tariff Legislation

Notice of Modification: China’s Acts, Policies and Practices Related to Technology Transfer, Intellectual Property and Innovation (89 Fed. Reg. 76581), effective September 27, 2024 .

To Further Facilitate Positive Adjustment to Competition From Imports of Certain Crystalline Silicon Photovoltaic Cells (Whether or Not Partially or Fully Assembled Into Other Products) (89 Fed. Reg. 66181 ), effective August 1, 2024 .

Presidential Proclamation

Global Safeguards

Notice of Conforming Amendments to Reinstated Exclusions: China's Acts, Policies and Practices Related to Technology Transfer, Intellectual Property, and Innovation (89 Fed. Reg. 64038), effective July 1, 2024 .

To Take Certain Actions Under the United States-Mexico-Canada Agreement Implementation Act and for Other Purposes (85 Fed. Reg. 39821), effective August 1, 2024 .

Presidential Proclamation

Other Tariff Legislation

A Proclamation on Adjusting Imports of Steel Into the United States (89 Fed. Reg. 57347), effective July 15, 2024 .

Presidential Proclamation

A Proclamation on Adjusting Imports of Aluminum Into the United States (89 Fed. Reg. 57339), effective July 15, 2024 .

Presidential Proclamation

To Further Facilitate Positive Adjustment to Competition from Imports of Certain Crystalline Silicon Photovoltaic Cells (Whether or Not Partially or Fully Assembled Into Other Products) (89 Fed. Reg. 53333), effective June 26, 2024 .

Presidential Proclamation

Global Safeguards

Changes approved by the Committee for Statistical Annotation of Tariff Schedules (formulated pursuant to section 484(f), Tariff Act of 1930, as amended) (484(f)), effective July 1, 2024 .

484(f) Committee

Notice of Extension of Certain Exclusions: China s Acts, Policies, and Practices Related to Technology Transfer, Intellectual Property, and Innovation (89 Fed. Reg. 46948), effective June 15, 2024 .

A Proclamation on Adjusting Imports of Steel Into the United States (89 Fed. Reg. 48233), effective June 1, 2024 .

Presidential Proclamation

To Take Certain Actions Under the United States-Mexico-Canada Agreement Implementation Act and for Other Purposes (85 Fed. Reg. 39821), effective June 1, 2021 .

Presidential Proclamation

Other Tariff Legislation

Notice of Extension of Certain Exclusions: China s Acts, Policies, and Practices Related to Technology Transfer, Intellectual Property, and Innovation (89 Fed. Reg. 46948), effective June 1, 2021 .

Notice of Conforming Amendment To Reinstated Exclusion: China s Acts, Policies, and Practices Related to Technology Transfer, Intellectual Property, and Innovation (89 Fed. Reg. 3703), effective January 1, 2024 .

A Proclamation on Adjusting Imports of Aluminum into the United States (89 Fed. Reg. 223), effective January 1, 2024 .

Presidential Proclamation

A Proclamation on Adjusting Imports of Steel into the United States (89 Fed. Reg. 227), effective January 1, 2024 .

Presidential Proclamation

To Take Certain Actions Under the African Growth and Opportunity Act and for Other Purposes (89 Fed. Reg. 437), effective January 1, 2024 .

Presidential Proclamation

Other Tariff Legislation

Extension of Exclusions and Request for Comments: China s Acts, Policies and Practices Related to Technology Transfer, Intellectual Property and Innovation (88 Fed. Reg. 90225), effective December 29, 2023 .

Changes approved by the Committee for Statistical Annotation of Tariff Schedules (formulated pursuant to section 484(f), Tariff Act of 1930, as amended) (484(f)), effective January 1, 2024 .

484(f) Committee

Staged FTA Rates (Staged FTA Rates), effective January 1, 2024 .

Notice of Extension for Product Exclusions: China's Acts, Policies, and Practices Related to Technology Transfer, Intellectual Property, and Innovation (88 Fed. Reg. 62423), effective October 1, 2023 .

Notice of Conforming Amendments to Previously Reinstated Exclusions: China's Acts, Policies, and Practices Related to Technology Transfer, Intellectual Property, and Innovation (88 Fed. Reg. 46362), effective July 1, 2023 .