Copy B/L, short for "Copy Bill of Lading," is a duplicate or secondary copy of the original bill of lading issued by the carrier or shipping agent. It serves as a proof of receipt of goods and acts as a document of title in the supply chain. Copy B/L is typically used for administrative purposes, such as record-keeping, internal documentation, and customs clearance. While it does not carry the same legal weight as the original bill of lading, it provides valuable information about the shipment and assists in maintaining accurate shipping records.