Rules of Origin determine eligibility for preferential tariff treatment through origin criteria and consignment conditions under the IAPTA. The framework prescribes that a Certificate of Origin under IAPTA must include exporter declaration and issuing certification; products qualify for preference only if they fall within eligible product descriptions, comply with IAPTA Rules of Origin, and meet consignment conditions. Box 8 must record origin classification: 'A' for wholly produced goods; 'B' for goods meeting Rule 7 with percentage of non originating content; and 'C' for goods meeting Rule 8 with percentage of originating content.