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. 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. The paperwork outlines the terms and conditions and acts a receipt for the shipment of goods. This document also serves as a receipt of shipment for the delivered goods to a specified destination.