Below are the annexes from free trade agreements that modify the Harmonized Tariff Schedule of the United States. The Annexes specify, usually in tabular form, what provisions will be modified along with changes to corresponding rates of duty. The modifications often occur for multiple years, in a process known as staging. The current rates are reflected in the most recent publication of the HTS at www.usitc.gov/harmonized_tariff_information.

Modifications to the Harmonized Tariff Schedule of the United States under Section 1206 of the Omnibus Trade and Competitiveness Act of 1988 and for Other Purposes
USITC Publication 5240
December 2021
Modifications to the Harmonized Tariff Schedule of the United States to Implement the United States-Mexico-Canada Agreement
USITC Publication 5060
May 2020
Modifications to the Harmonized Tariff Schedule of the United States Under Section 1206 of the Omnibus Trade and Competitiveness Act of 1988
USITC Publication 4653
December 2016
Recommended Modifications in the Harmonized Tariff Schedule to Conform with Amendments to the Harmonized System Recommended by the World Customs Organization, and to Address Other Matters, Inv. 1205-11
USITC Publication 4556
July 2015
Modifications to the Harmonized Tariff Schedule of the United States to Implement the United States-Panama Trade Promotion Agreement, Inv. 332-352
USITC Publication 4349
October 2012
Modifications to the Harmonized Tariff Schedule of the United States to Implement the United States-Colombia Trade Promotion Agreement
USITC Publication 4320
May 2012
Modifications to the Harmonized Tariff Schedule of the United States to Implement the United States-Korea Free Trade Agreement
USITC Publication 4308
February 2012
Modifications to the Harmonized Tariff Schedule of the United State to Adjust Rules of Origin under the North American Free Trade Agreement
USITC Publication 4095
August 2009
Modifications to the Harmonized Tariff Schedule of the United States to Implement the United States-Peru Free Trade Agreement
USITC Publication 4058
January 2009
Modifications to the Harmonized Tariff Schedule of the United States to Implement the United States-Oman Free Trade Agreement
USITC Publication 4050
December 2008
Modifications to the Harmonized Tariff Schedule of the United States to Implement the Dominican Republic-Central America-United States Free Trade Agreement With Respect to Costa Rica
USITC Publication 4038
December 2008
Modifications to the Harmonized Tariff Schedule of the United States to Implement the Dominican Republic-Central America-United States Free Trade Agreement with Respect to Guatemala
USITC Publication 3861
June 2006
Modifications to the Harmonized Tariff Schedule of the United States to Implement the Dominican Republic-Central America-United States Free Trade Agreement with Respect to Honduras and Nicaragua
USITC Publication 3845
March 2006
Modifications to the Harmonized Tariff Schedule of the United States to Implement the United States-Bahrain Free Trade Agreement
USITC Publication 3830
July 2006
Modifications to the Harmonized Tariff Schedule of the United States to Implement the Dominican Republic-Central America-United States Free Trade Agreement with Respect to El Salvador
USITC Publication 3829
February 2006
Modification to the Harmonized Tariff Schedule of the U.S. to Implement the U.S.-Australia Free Trade Agreement
USITC Publication 3722
December 2004
Modification to the Harmonized Tariff Schedule of the U.S. to Implement the U.S.-Morocco Free Trade Agreement
USITC Publication 3721
December 2005
Modifications to the Harmonized Tariff Schedule of the U.S. to Implement the U.S.-Chile Free Trade Agreement
USITC Publication 3652
December 2003
Modifications to the Harmonized Tariff Schedule of the U.S. to Implement the U.S.-Singapore Free Trade Agreement
USITC Publication 3651
December 2003
Summary of Trade and Tariff Information: Schedule 1, Volume 4, Dairy Products, Birds Eggs
USITC Publication 240
March 1968