EU GSP REX registration: exporters must self certify origin for consignments over 6000 and retain records. Indian exporters must register under the REX self certification system with designated Local Users by submitting IEC and Importer Exporter Profile and obtaining a 20 digit REX number that embeds the IEC and Local User identifiers. REX numbers must be shown on Statements on Origin for consignments exceeding EUR 6000 (multiple shipments under one invoice count as one consignment). Erroneous REX numbers require revocation by the Local User (annulment needs Department of Commerce approval). Exporters must retain origin documents for three years and submit fortnightly trade documents to Local Users; supplier declarations and EU GSP rules of origin compliance are required.