USITC Harmonized Tariff Schedule
hts.usitc.gov
The official Harmonized Tariff Schedule of the United States from the U.S. International Trade Commission: full-text search of tariff articles, duty rates by HTS number including the Chapter 99 special programmes, chapter number ranges and the list of HTS revisions.
GET /v1/data/htsusitc/chapter-range1Request
Bare HTS chapter number, 1 to 99, with no padding and no 'Chapter' prefix. A number above 99 returns an empty object; 0, or any non-numeric value, returns the site's HTML shell instead of JSON.
curl "https://api.fastcrw.com/v1/data/htsusitc/chapter-range?docNumber=4" \ -H "Authorization: Bearer $FASTCRW_API_KEY"
2Response example
A sample shape. Press Run to see live data from USITC Harmonized Tariff Schedule.
{
"Ending_Number": "0410.90.00.00",
"Starting_Number": "0401"
}Attribution: Source: U.S. International Trade Commission, Harmonized Tariff Schedule of the United States (U.S. Government Work, public domain)
Licence: USITC publishes the HTS in its DCAT-US open data catalogue (www.usitc.gov/data/data.json) as dataset "Harmonized Tariff Schedule of the United States (2026)", identifier "https://hts.usitc.gov/", carrying "license": "http://www.usa.gov/publicdomain/label/1.0/" and "rights": [ "This dataset is a U.S. Government Work and is not covered by copyright in the United States of America" ]. That licence URL now redirects to https://www.usa.gov/government-copyright, which defines the designation - "Government work is something created by a U.S. government officer or employee as part of their official duties" - and attaches two limits that are not copyright limits: "You cannot use government materials in a way that implies endorsement by a government agency, official, or employee" and "You also cannot use federal government trademarks or federal government agency logos without permission"; it also warns that "U.S. copyright laws may not protect U.S. government works outside the country." Two further USITC caveats, neither restricting reuse: the HTS External User Guide states that "Section 1204(c) of the Trade Act states that the legal provisions contained in the Commission’s publications of the HTS, as updated, are statutory in nature" and that "importers should rely primarily on the legally authoritative HTS itself in preparing Customs documents"; and usitc.gov/disclaimers.htm states "The information provided using this web site is only intended to be general summary information to the public. It is not intended to provide legal advice to an individual or entity. We make no guarantees about the accuracy or completeness of the contents of this site, and expressly disclaims liability for errors and omissions in these contents."
Ask with this source
A prompt for your agent that names this source and how to call it through the crw MCP.
Chapter HTS number range
Use USITC Harmonized Tariff Schedule (htsusitc) from fastCRW Pergamon, capability "Chapter HTS number range" (chapter-range). You know an HTS chapter number and need the first and last HTS number it spans, to page through it or to check which chapter a number falls in. Example options: docNumber=4. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "htsusitc" and capability "chapter-range". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>
Current HTS revision
Use USITC Harmonized Tariff Schedule (htsusitc) from fastCRW Pergamon, capability "Current HTS revision" (current-release). You need to know which HTS edition the rates you are reading come from, or you need a release name to pass to another call. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "htsusitc" and capability "current-release". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>
Duty rates for an HTS number
Use USITC Harmonized Tariff Schedule (htsusitc) from fastCRW Pergamon, capability "Duty rates for an HTS number" (rates). You hold an ordinary HTS number (chapters 01-98) and want its duty rates together with the full chapter they sit in. Example options: htsno=0201.20.02.00, keyword=beef. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "htsusitc" and capability "rates". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>
Chapter 99 duty rates
Use USITC Harmonized Tariff Schedule (htsusitc) from fastCRW Pergamon, capability "Chapter 99 duty rates" (rates-chapter-99). Your HTS number starts with 99, or you need the extra tariff a Section 232/301 or IEEPA action adds on top of an ordinary rate. Example options: htsno=9903.88.03, keyword=99038803. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "htsusitc" and capability "rates-chapter-99". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>