The list below details any planned disruption to services to the best of our knowledge. Disruption to any of these can impact the performance of Sequoia.
This information can change at very short notice. Unless otherwise specified, all times are local.
Last change to the information on this page: Wednesday 11 Feb 2026 10:43
Service
Start time
End time
Details
ASM Online Services
25/02/2026 20:00
25/02/2026 23:30
In order to carry out essential system maintenance, ASM Online Services will be unavailable between and . During this time you will be unable to send and receive messages in Sequoia. You can prepare your CDS declarations ready to send once the outage is complete but will not be able to view or prepare Safety & Security declarations or Transit Phase 5 movements so please retrieve any Transit documents you need prior to the outage.
To improve re-connection behaviour following this outage, please ensure that you are running version 5.16 (or higher) of Sequoia. We will confirm when normal services resume.
We apologise for any inconvenience this may cause.
CCS-UK
CDS Live Service
12/02/2026 19:00
12/02/2026 21:00
Planned outage on to
See message from HMRC
CDS will be carrying out planned system maintenance between 19:00
GMT and 21:00 GMT on Thursday 12th February 2026.
CDS will still be operational during this time however,
movements requiring DEFRA approval will be delayed during this period. Messages
will be queued and automatically replayed once normal service resumes.
HMRC apologise for any inconvenience this may cause.
CDS Test Service (TDR)
17/02/2026 12:00
17/02/2026 16:00
Planned outage on to
See message from CDS Test Service (TDR)
Hello,
We are emailing to advise you that the CDS TDR Service will be unavailable from:
• 12pm on Tuesday 17th February 2026 until 4pm on Tuesday 17th February 2026
There will be a complete outage during this period. Please can you inform your contacts.
Kind regards,
TDR Communications Team
CNS Compass
ICS2
12/02/2026 09:00
12/02/2026 09:15
Planned outage on to
See message from ICS2
The DG TAXUD Service Desk would like to inform you about the scheduled system maintenance on the following application.
Unavailable application: STI
Unavailability Start Date/Time: 12/02/2026 10:00 CET Unavailability End Date/Time: 12/02/2026 10:15 CET
In case of scheduled application unavailability ICS2 business Continuity Plan will be activated at the scheduled unavailability Start Date/Time. You will be notified about activation of ICS2 Business Continuity Plan measures. Before you get this notification ICS2 Business continuity plan measures must not be applied. We apologize for any inconvenience this may cause you. Please take the appropriate actions to inform your affected users. For further questions or information please contact National Service Desk in the country where you have legal obligation to lodge ENS or arrival notification.
