If you import third country goods into the UK, they may be stored temporarily in customs approved premises until they are assigned to a Customs-approved treatment or use. These approved premises are situated within ports or linked to particular ports or airports.
The main types of approved premises are:
Remote Transit Sheds
Enhanced Remote Transit Sheds
Transit Sheds situated within Inland Clearance Depots (ICDs)
ICDs may also be used for the control of freight to be declared for export to non-Community countries.
Read more about temporary storage.