New process for Temporary Storage of sea cargo
Are you bringing goods into the European Union by sea from outside the EU? By 1 October 2025 at the latest, you must submit the Temporary Storage Declaration, TSD (Aangifte tot Tijdelijke Opslag, ATO) in the Single Window for Maritime and Aviation (SW) according to the new system specifications.
What is changing for you?
The start date has been moved from 1 April 2025 to 1 October 2025.
You will continue to submit the TSD via the existing Single Window for Maritime and Aviation (SW), but using new system specifications. Software providers know this system as the Trade and Transport Gateway (HTG).
The National Customs Helpdesk remains the point of contact for questions and support with automated processes.
The new system specifications for TSD maritime have already been made available on the website of the Dutch Customs National Helpdesk.
The system specifications for the Entry Summary Declaration (ENS) and the Arrival Notification (NA) have already changed. Read more on 'ICS2: New process for Entry by Sea'.
Why this change?
By moving the start date to 1 October 2025, declarants and software developers have more time to prepare for the transition.
The new TSD system specifications are a result of the implementation of European customs legislation (UCC - Union Customs Code).
With these new specifications, data elements in the TSD are aligned with the updated data elements of the Entry Summary Declaration (ENS). It will also become possible to reuse ENS data in the TSD.
More details about the reuse of ENS data can be found in the memo ‘Multiple Filing in the Entry Summary Declaration (ENS) and Reuse of ENS Data in the Temporary Storage Declaration (TSD)’, included in the meeting documents of the ODB ICS2/Introduction Sounding Board Group meeting documents dated 14 April 2022 (only available in Dutch).
For further information about the changes, visit ‘UCC - Work Programme’, (available in English) on the European Commission's website.
Technical information
The new system specifications for the TSD for maritime have been integrated into the existing MIG Single Window and have been published on 'Dutch Customs National Helpdesk'.
More information
Would you like to learn more about the changes for the new Temporary Storage process? Watch our webinar 'Veranderingen Binnenbrengen en Tijdelijke opslag Maritiem' (webinar in Dutch).