Authorized courier outsourcing requires prior customs permission to protect expeditious clearance integrity and supply chain security. An Authorized Courier must obtain prior permission from Customs before sub letting or outsourcing any component of the door to door supply chain because such entities are registered to provide secure, verifiable global processes and IT systems enabling expeditious clearance; Commissioners must review courier facilities and permit outsourcing only with due care to preserve supply chain security and the purpose of expeditious clearance.