To receive payment, an exporter or shipper must present the documents required by the letter of credit. Typically, the payee presents a document proving the goods were sent instead of showing the actual goods. The Original Bill of Lading (BOL) is normally the document accepted by banks as proof that goods have been shipped. However, the list and form of documents is open to negotiation and might contain requirements to present documents issued by a neutral third party evidencing the quality of the goods shipped, or their place of origin or place.