What does the term CID number mean on a bill of lading?

The term CID number on a bill of lading refers to a "Cargo Identification" number, which is used to uniquely identify a specific shipment or cargo. This number helps streamline the tracking and management of shipments throughout the supply chain, ensuring accuracy in logistics and facilitating communication among parties involved. It serves as a reference point for carriers, shippers, and receivers to confirm details related to the cargo.