The new Customs Declaration Service (CDS)

The new Customs Declaration Service (CDS) is being introduced in order to handle declarations under the Union Customs Code. It will replace CHIEF, which has been running for more than 25 years.

This page will keep you up to date with the HMRC development and rollout of the new system as well as our progress towards CDS.


Ozone Depleting Substances - updated guidance
3 Mar 2025
CDS Release 4.6.2.2 - Important guidance
29 Jan 2025
Changes affecting CDS declarations after 31st January 2025
27 Jan 2025
New measures are being introduced on 1st February 2025 for the export of goods containing mercury.
27 Jan 2025
Removal of waiver codes 999L and Y999 for exports
9 Jan 2025
Use of special and diacritic characters on the Customs Declaration Service (CDS)
17 Dec 2024
CDS Release 4.6.1.1 - Important Guidance for Traders
28 Oct 2024
Best practice on ensuring receipt of a DMSEOG (exit notification) at an inventory linked location
10 Oct 2024
Information on Querying the status of a UCR
2 Oct 2024
CDS Release 4.6.0 - Important Guidance
16 Sep 2024