Empty containers should always be submitted with a 4 in the EQD segment. If they are submitted with a 5, it means they are full.
An example of an empty container;
You must declare all containers as either empty or full on one B/L. Please note: no mixed B/L with full and empty containers. Outgoing to Customs, this will be entered in the process as ‘E’, provided no other status is entered in the screen for custom status.