A more thorough explanation:

A clean bill of lading is a document that acknowledges the receipt of goods by a carrier or shipper's agent and the contract for the transportation of those goods. It indicates that the goods have been received for shipment and is issued by a person engaged in the business of transporting or forwarding goods.

A clean bill of lading contains no clause or notation qualifying the bill's terms. This means that there are no provisions for deck storage or recording of cargo damage. It is the opposite of an unclean bill of lading, which shows on its face that the goods were damaged or that there was a shortage of goods at the time of shipment.

For example, if a company ships a container of goods to another country and the carrier issues a clean bill of lading, it means that the goods were received in good condition and there were no issues with the shipment. This document is important because it serves as proof of shipment and can be used to transfer ownership of the goods.