Sectoral Rules of Origin require tariff-heading transformation and final manufacture within the exporting Participating State for listed products.

Sectoral Rules of Origin under APTA apply product-specific origin criteria before the general origin criterion under rule 4(a), which applies only if the sectoral criterion is not met. The final manufacturing process must occur in the exporting Participating State. Change in Tariff Heading requires non-originating materials to change from another tariff heading into the relevant heading. CTH governs the listed categories of chemicals, fuels, plastics, metals, footwear, machinery and manufactured articles, while synthetic rubber requires CTH except from heading 4001.

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