The surrender of the original straight bill of lading, properly endorsed, is required by transportation lines upon delivery of the freight, in accordance with the terms of the bill of lading. Abbreviations for package types, handling units. A blank bill of lading or “bol” is an official document issued by a carrier to you (as the shipper) as a contract of carriage of goods. Having this document signed protects the carrier and the shipper because it contains detailed information about the quantity, type, and. This document also serves as a receipt of shipment for the delivered goods to a specified destination.