For any single, FCL, or back-to-back shipment, the eHBL 8000 CCN must be transmitted, referencing the Primary CCN (9000). The Close Message should also be filed, referencing the Previous CCN, which is the same 9000 CCN for single or FCL back-to-back shipments. The Close Message acts as confirmation to the CBSA that the eHBL 8000 CCN is linked to the Previous CCN. The CBSA expects one Customs acquittal for the 8000 eHBL CCN. Once the 8000 CCN is Customs released, the D4 Deconsolidation Notice is triggered at the primary terminal.

Additionally, the sublocation code for the non-bonded freight forwarder's eHBL 8000 CCN must match the sublocation code of the Previous CCN filed by the marine carrier in its ACI transmission. This Customs release request will come from the railroad or marine terminal sublocation code.