Reference

• Notices

• Description of the Foreign Trade Statistical Program

• Conversion Tables and Units of Quantity

Concordance

• These files include most current 10-digit HS import and export codes as well as equivalent codes in other classification systems. Please read the structure files below to know which calssification systems are included. These files include codes that are not valid in AES. AES users should use the files available from the AES Document Library. (These five files are included in "ZIP ASCII file Schedule B/HTSUS" which is listed under "Schedule B Search Engine - Downloads")
• Read Me (TXT, < 1 MB): 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025
• Exports:
  • Structure (TXT, < 1 MB): 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025
  • Codes (TXT, 2 MB): 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025
• Imports:
  • Structure (TXT, < 1 MB): 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025
  • Codes (TXT, 5 MB): 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025
• Interactive Concordance (XLSX)
  • Exports : 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025
  • Imports : 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019| 2020 | 2021 | 2022 | 2023 | 2024 | 2025
• MITR Concordance (XLSX)
  • Exports and Imports: 2012 | 2013 | 2014 | 2015 | 2016 | 2019 | 2020

Codes

Classification System Codes

• Advance Technology Products (ATP)
• American Iron and Steel Group Product Codes
• End-use codes
  • Imports (TXT, 8k)
  • Exports (TXT, 8k)
• Harmonized Tariff Schedule (HTS) Of the United States (Imports)
• Historical HS Numbers for Data Users (XLSX, Imports)
• Historical HS Numbers for Data Users (XLSX, Exports)
• NAICS Codes (TXT, 46k)
• Schedule B Export Commodity Codes
• SIC
  • Imports (TXT, <1mb) | ASCII delimited file (TXT, <1mb)
  • Exports (TXT, <1mb) | ASCII delimited file (TXT, <1mb)
• SITC (TXT, <1mb)



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  Geographic Codes

  • Schedule C: Country codes and descriptions
    • HTML: Sorted by Code | Sorted by description | Sorted by ISO code
    • TXT: Sorted by Code 18k | Sorted by description 18k | Sorted by ISO code, 18k
    • ASCII delimited file (TXT, <1mb)
  • Country Groupings
  • Schedule D U.S. Customs districts/ports, codes and descriptions. (TXT)
    • HTML: Sorted by Code | Sorted by Description
    • TXT: Sorted by Code 30k | Sorted by Description 39k
    • ASCII delimited file (TXT, <1mb)
  • Schedule K (Foreign Port Codes) [external link]

  Other Codes

  • IATA Codes [external link]
  • Country Sub-Codes (Imports)
  • Rate Provision (Types of Duty)

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  Information Papers

  • Updated U.S. Merchandise Trade Statistics: A Quality Profile (Posted October 15, 2014) (PDF 98K)
  • Seasonal Adjustment of Chained Dollars (Posted March 9, 2012) FAQ
  • State Data Series - An Explanation (Posted March 11, 2010)
  • Import and Export Low Value Estimation Change (Posted December 10, 2009)
  • Foreign Trade Zones Guidelines (PDF 1.8 MB)
  • Effect of Mandatory Electronic Filing on Export Data (Posted January 14, 2009)
  • Adjustment of U.S. Merchandise Trade Data For Price Change (Posted April 6, 2004)
  • US - Canada Data Exchange1990-2001 (Posted April 19, 2002)
  • 1998 Annual National State Data Centers meeting - FTD presentation (Posted October 28, 1998)
  • Outbound Process Improvements: Quality of U.S. Export Trade Statistics (Posted September 16, 1998)