The bill of lading (BOL) is a legal document that will specify exactly what vehicle is to be transported from location A to location B and by whom. It will document the condition of the vehicle before it is turned over to the trucker at pickup and then document the condition again before it is turned over to the owner at delivery. The bill of lading serves as the contract between the trucker and the vehicle owner and includes the terms of that agreement. The final function of the bill of lading is as a receipt for the transaction.