If you are an authorised consignor, then you start the transit movement on NCTS with a Local Reference Number (LRN). Using NCTS, you then produce the Transit Accompanying Document (TAD) which includes the MRN (Movement Reference Number).
If you are starting the transit movement but you are not an authorised consignor, the LRNs for each consignment must be presented at an Office of Departure with the goods. The Office of Departure then starts the transit movement by activating the TAD which includes the MRN.
Please note that the LRN is NOT a TAD. The haulier will need to have a physical copy of the TAD including the MRN to accompany the assignment for presentation / scanning at the border.
For more information on what documents you need, see: