Verification procedure enables importing customs to require origin checks and on-site verification visits under CEPA rules. The verification procedure permits the importing Party's Customs Administration to request verification of a Certificate of Origin or the determination of origin, specifying the scope of inquiry and providing supporting documents. For origin-determination queries, a questionnaire is routed to exporters, producers or manufacturers via the exporting Party's competent authority. The exporting authority must respond within prescribed timeframes, may extend by mutual consultation, and must cooperate in further investigative actions. The importing Party may request an on-site verification visit, which requires notice, accompaniment by competent authorities, possible neutral specialists, and concludes with a written Record of Visit identifying the certificate, products, participants and proceedings.