What must a captain do if a new bill of lading is requested?

When a captain receives a request for a new bill of lading, the appropriate action is to issue it if the party requesting it provides security for the cargo's value. The bill of lading serves as a receipt for the cargo, a document of title, and a contract of carriage. If a new bill is requested, it typically indicates a change in the terms of shipment or a transfer of ownership.

Issuing a new bill of lading under the condition that security is provided ensures that the captain and the shipping company are protected against potential claims for the cargo during transit. This requirement for security acts as a safeguard, ensuring that the value of the cargo is held secure until the new bill is properly processed.

In contrast, maintaining the original bill without issuing the new one could lead to complications, especially if the cargo needs to change hands or if there are discrepancies in shipping instructions. Consulting the consignee may be a prudent communication step, but it does not fulfill the requirement to issue a new bill of lading, and destroying the old bill would be inappropriate as it could create liability and confusion concerning the cargo ownership and shipment details.