The New Computerised Transit System (NCTS) is an online system for submitting transit declarations and notifications to HMRC.
In use for 20 years, NCTS is the EU’s central transit processing system.
This is the online process for controlling the movement of goods in transit. It is operated by the Common Transit Convention and includes countries outside of the EU, for example Turkey have access to NCTS. It is possible to track and trace an MRN (see below) to see the current status of the movement across various borders and to control when a transit is closed (or not, as the case may be).