In the CLT "Packaging and Shipment" domain, a mailing label is defined as a label that carries all information required for transportation from origin to destination. This includes sender and recipient names and addresses, routing codes, tracking numbers, barcodes, and sometimes special handling notes. It ensures the carrier can process and deliver the package accurately through automated sorting and scanning systems. While recipient information or a barcode are components of the label, the label's purpose is broader-it provides complete routing data. The CLT stresses the critical role of accurate labeling in preventing misdirected freight, reducing returns, and ensuring compliance with carrier specifications. Proper label placement and print quality also contribute to smooth flow through logistics automation systems.