Backload A backload is a transport or courier load you carry on a return journey. When a job is advertised as a backload on a freight exchange site, it means the company is looking for a cheap rate transport or courier, and will usually accept a slow delivery for the load.
Bill of lading A contract between the owner of the goods and the carrier. A straight bill of lading is non-negotiable. A negotiable or shipper's order bill of lading can be bought, sold, or traded while goods are in transit.
COURIER SERVICES GLOSSARY 
