ELO, ENS and GMR are parts of UK customs after Brexit. ENS is the safety declaration on entry, ELO is GB import readiness, and GMR is the movement number in the GVMS system the driver uses to cross the border. The set is usually prepared by the carrier or a customs agency, but the data for the declarations comes from the sender.
One by one
- ENS, Entry Summary Declaration (safety).
- ELO, entry in the records / GB import readiness.
- GMR, Goods Movement Reference in GVMS.
The carrier (OTSL) prepares the GMR, but it requires GB import documents from the sender or client. See customs clearance.