United Kingdom HMRC Guidance: Apply to become a registered exporter 08 December 2020203 views1 min read Apply to HMRC to become a registered exporter on the Registered Exporter (REX) system. Source gov.uk Brexit Customs HMRC Guidance: Making an import declaration in your records without authorisation from 1 January 2021 HMRC Guidance: Additional data element required for goods held in Temporary Storage or a Special Procedure, which are released to free circulation (CIP 8)