The paperwork outlines the terms and conditions and acts a receipt for the shipment of goods. A bill of lading is a legally binding document issued by a carrier to a shipper that details the type, quantity, and destination of the goods being carried. A bill of lading (bol) is a legal agreement serving as a contract between the shipper and the carrier. Pro numbers are 9 or 10 (with a check digit) numbers. View, print, email or request a fax for bills of lading, weight and inspection certificates, and delivery receipts.