Further details on CDS will be published once it is on general release, accessible and proven to be stable enough to cope with the transition from CHIEF.

CDS – The CHIEF Replacement Service

Important Update 04/08/2021 – HMRC have now announced that CHIEF will be withdrawn in two stages – 

30th September 2022 – The ability to make import declarations on CHIEF will end.

31st March 2023 – The ability to make export declarations on CHIEF and the National Export System (NES) will end

Update from BIFA 14/02/2020

BIFA have published the following documents (Please note this is not a guidebook)

Guidance on the Customs Declaration Service

Additional Data Requirements for CDS

Additional Data Requirements Guidance (to be read in conjunction with above form)


Here are some other links which may assist :

What is CDS and why is it replacing CHIEF?

UK Trade Tariff Volume 3 (CDS Imports)