Revision 1.18 of the Web Transit Services guide for information exchange between Operators and Customs in the new NCTS6 System (New Computerized Transit System Phase 6) is published. This guide contains the external domain messages (communication between the Economic Operator and the Tax Agency) of the national component of the Automated Transit Declaration System (NCTS6), as well as any necessary adjustments to improve the National Transit Systems in line with the Union Customs Code (UCC).

In this new revision, certain rules of some messages are changed, mainly derived from the adaptation of the transit declaration to the EU-UK Agreement in relation to Gibraltar made public on 26 February 2026.

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