Verification of origin: retroactive checks and on-site verification may be requested to confirm product originating status. The Central Board may request retroactive checks on certificates of origin by sending supporting documents and a questionnaire to the issuing authority; goods may be released pending verification with administrative measures including security. The issuing authority must respond within specified timelines based on the request type. If responses are unsatisfactory, Indian customs may request a verification visit, providing a written request with producer/exporter identity, proposed dates and officials; the issuing authority must consent within thirty days and the visit occur within sixty days of consent or a mutually agreed period. A written determination on originating status follows the visit.