GlossaryEN1 min readUpdated: Jun 26, 2026
Subheading Jump HS-6 (CTSH)
When a customs broker is checking whether a finished product can claim preferential origin despite using non-originating inputs, one of the first criteria to examine is CTSH—Change of Tariff Subheading.
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Source: https://www.wto.org/english/res_e/reser_e/ersd201303_e.htm
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Definition & Explanation
When a customs broker is checking whether a finished product can claim preferential origin despite using non-originating inputs, one of the first criteria to examine is CTSH—Change of Tariff Subheading. This rule requires that the finished good be classified under a different six-digit Harmonized System code than the non-originating materials used in its manufacture. Where that shift can be demonstrated, many free trade agreements consider the product sufficiently worked or processed, granting preferential origin without any additional regional value content requirement. CTSH criteria appear in product-specific rules of origin and must be substantiated through documented HS classifications for both inputs and the final product—a task typically handled by customs compliance teams. Compared to a change of tariff heading (CTH, four-digit level) or change of chapter (CC, two-digit level), CTSH sets the narrowest transformation threshold within the Harmonized System.
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