Rules of Origin determine preferential tariff eligibility, requiring origin criteria, direct consignment and documentation for preference. Rules prescribe that goods consigned between the Contracting Parties qualify for preferential treatment only if importers claim origin and produce specified evidence, and if products are either wholly produced in the exporting Party or meet processing/value-content criteria including change-of-heading tests and specified exclusions for insufficient operations. Non-originating material value is determined by c.i.f. at importation or earliest ascertainable domestic price. The rules also provide cumulative origin mechanics, direct consignment conditions, packing treatment, a Certificate of Origin and cooperation measures to prevent circumvention.