Notification: Introduction of NCTS 6 – Opt Out
Official documentation for implementation of NCTS 6 by DG TAXUD
NCTS-P6_DDNTA-Main Document-6.4.0-v2.00-SfA
/content/NCTS-P6_DDNTA-Main Document-6.4.0-v2.00-SfA.docx
/content/DDNTA_Appendices-6.4.0-v2.00.7z
Economic operators are hereby informed that the Customs Administration will begin a two-phase implementation of NCTS 6, starting from 1 June 2026, when the NCTS 6 Opt-Out version will be introduced. Afterwards, work will continue on implementing NCTS 6 Opt-In.
NCTS 6 Opt-Out represents an upgrade of the existing system and its alignment with the latest European standards in accordance with the EU Customs Code (UCC) and the Common Transit Convention.
With the new version, the following improvements are introduced:
- enhanced data structures
- additional controls
- improved electronic data exchange
The objective is to ensure greater efficiency and security in transit procedures.
Key Characteristics
| Feature |
NCTS 6 Opt-Out |
| Number of declarations |
Two (Transit + ENS in ICS2) |
| IE015 message |
Simplified (without ENS data) |
| Connection to ICS2 |
No direct link within NCTS |
| Security code (ENS) |
Only 0 or 2 |
Economic operators are advised to:
- familiarize themselves with the new requirements and data changes
- adapt their IT systems accordingly
- start testing and implementation in a timely manner
Technical specifications and XSD schemas with the changes that need to be implemented by 31 May 2026, relating to the NCTS 6 Opt-out version, which will become operational for declarants as of 1 June 2026.
/content/XSD-opt-out-6.4.1.zip
/content/MK-UCC.NCTSp6.4.1.Message Structures_v1.00.docx
/content/MK-UCC.NCTSp6.4.1.Message Exchanges_v1.00.docx
/content/MK-UCC.NCTSp6.4.1.Code Lists_v1.00.docx
/content/MK-UCC.NCTSp6.4.1.Business Rules_v1.00.docx
Regarding business-related updates with the new functionalities in Opt-Out for NCTS 6
(FOR TRADERS)
In NCTS 5, it was possible to use the following values in the Security field:
In NCTS 6 Opt-Out, these codes are no longer allowed.
Now the valid values are:
- 0 = no ENS data in the transit declaration
- 2 = EXS only (exit security declaration)
In practice, ENS is submitted separately in ICS2, while in NCTS 6 Opt-Out the transit declaration no longer contains ENS data.
(FOR TRADERS)
IE117 = Presentation Notification at Office of Transit
This is a new functionality for traders.
When the truck arrives at a transit office (Office of Transit), the trader/carrier can send:
- a notification that the goods will physically arrive at the border at the transit office.
This is similar to the pre-lodgement of the IE015 message at the office of departure.
In short, the transit office receives a prior notification from the trader and can perform security checks and decide whether the transit movement may continue.
If the customs officer decides that the movement must not continue, they reject the transit using “Deny Transit Passage” and generate message IE119.
(FOR CUSTOMS OFFICERS)
IE119 = Rejection Crossing Frontier
This is a message exchanged between customs systems. In this case, the office of departure is informed that the movement has been stopped.
Otherwise, if the customs officer decides to allow the transit to continue, they will enter message IE118, i.e. “Notification of Crossing the Frontier.”
_________________________________________________________________________________________________________________________
07.07.0206
Implementation of IE117
According to the latest change introduced yesterday in NCTS 6 by the contractor, we have prepared a brief guideline on how traders should proceed when a TRANSIT customs office is included in the IE015 (declaration), in order to avoid vehicle delays at border crossings and prevent additional congestion.
Once the IE015 has been generated and all required data have been entered, including the office of departure, transit office(s), office of destination, and all goods-related information, the next step, after receiving the MRN number, is the submission of the IE117 message.
We hereby inform you that, starting today, traders are required to create an IE117 message, i.e. a Presentation Notification at Office of Transit.
The creation of this message is MANDATORY. Specifically:
- If there is only one transit office, one IE117 message must be created.
- If there are multiple transit offices, the procedure must be repeated, and an IE117 message must be created for each transit office included in the transit operation.
13.07.2026
Updated documentation for the implementation of IE117
/content/MK-UCC.NCTSp6.4.1.Business Rules_v1.10.docx
/content/MK-UCC.NCTSp6.4.1.Message Exchanges_v1.10.docx
/content/MK-UCC.NCTSp6.4.1.Message Structures_v1.10.docx