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HMRC internal manual

Strategic Goods and Services - BIS Export Licensing and Sanctions - General

Issuing and presentation of licences: Open Individual Export Licences (OIELs)

These licences authorise the exporter to export unlimited quantities of specified goods to specified countries of destination. Unlike specific licences, they do not need to be presented to HMRC at the point of exportation. However, except in the case of intra-EC trade, Box 44 of the SAD must show the relevant document and status code.  The OIEL licence number must be shown in the document reference box.  The associated documentation should also refer to the licence used.