As of August 2015, the U.S. International Trade Commission publishes tariff codes in the Official Harmonized Tariff Schedule for 2015. The schedule is available on the Trade Commission's official website, USITC.gov. Alternatively, the Government Publishing Office provides hard copies for order through their website or via phone at 866-512-1800.
The 2015 edition of the Official Harmonized Tariff Schedule took effect as in July 2015. The electronic version of the schedule offered online may be updated more frequently than the hard copy available from the Government Publishing Office.
The schedule is based on the International Harmonized System, and provides tariff rates and categories for all goods imported into the United States.