A United Nations (UN) number is a four-digit number which is used to identify a specific hazardous material or article. These article require a licence of shipment.

UN Numbers range from 0004 - 3548 and are the same world wide. To find your good's UN number, check out the full list here.

There is no UN number issued for non-hazardous goods.



CustomsLink (part of the Stena Line group of companies) is a cloud-based software platform and managed solution that enables users to make import and export customs declarations with the added benefit of using the same data to cover other necessary UK-EU port and border processes connected with ferry shipping to/from the UK.

The platform is accessible on smartphone, tablet and desktop and is online 24/7 to provide the solution to your customs clearance headaches. With an easy-to-complete user journey, supported by self-explanatory guides that help you, step by step through the process. Our aim is to ensure your wheels keep turning.

Find out more about CustomsLink



S&S GB (Safety & Security Great Britain) is the Entry Summary Declaration (ENS) service for goods imported into Great Britain from the EU and RoW. This is now a legal requirement. Businesses who are ready to start submitting S&S declarations before this date are encouraged to do so. Find out more



To ensure flexibility when moving goods out of Great Britain via the Port of Dover or Eurotunnel there is a dual Freight Location Code (FLC) that should be used. This will help to avoid errors within the Goods Movement Reference (GMR).

For example: If the export declaration is created using Dover’s FLC but the driver then travels through Eurotunnel using a GMR with the Eurotunnel FLC, it will contain errors.

If the driver checks-in without correcting the errors, the GMR will be invalid, and the driver will be turned away until these errors are corrected.

Hauliers, drivers, or logistics companies must -

  • ensure your supply chain and, in particular, the trader, intermediary or declarant, know which border location you will be leaving from
  • make sure you check that they have used the dual FLC if you’re exiting via Dover or Eurotunnel.
  • make sure you have a process in place to contact the declarant, in case of an error within the GMR so they can correct the declaration.

Traders, exporters, intermediaries, or customs agents must -

  • ensure you know which border location your haulier, driver or logistics company will be using to exit Great Britain with your goods
  • use the dual FLC if your goods are leaving via Dover or Eurotunnel.

If there’s a chance the driver may change their routing after the declarations have been created, we suggest using the dual FLC for Dover/Eurotunnel to avoid any potential errors or delays.



Anyone who is authorized by their business to make a customs declaration can do this, however it is important to note that only businesses based in a country are able to lodge a declaration there.

For example, a UK company cannot submit a declaration into French Customs (unless they have a French subsidiary or a French entity who is willing to act as a legal representative).

Find out more about where CustomsLink are able to help you complete your customs declarations here

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