Verification of origin certificates permits requesting documentation, on-site inspections, questionnaires and observer participation under procedural safeguards. Importing authorities may request information and documentary copies via the exporting Party to verify origin certificates, require access to data establishing CIF value of non-originating inputs and documentation confirming specific production processes, and expect producers or exporters to facilitate such verification. They may send questionnaires through the exporting authorities, request facilitated visits to producers' premises to examine production processes and equipment, require accompaniment by exporting authorities and neutral specialists, and document visits by minutes and reports, with limited postponement permitted and other cooperative measures as agreed.