The delivery date is understood as:a) "Clean on board" date on B / Lb) B / L release datec) Depending on the type of B / L used

The delivery date in shipping terms can be understood in different ways depending on the context:

a) "Clean on board" date on B/L: This refers to the date when the goods were loaded onto the ship. A Bill of Lading (B/L) is a document issued by a carrier (or their agent) to acknowledge receipt of cargo for shipment. When it's marked as "clean," it means that the goods were received in good condition without any damages.

b) B/L release date: This is the date when the Bill of Lading is issued by the carrier, after the cargo has been loaded onto the ship. This date is important because it triggers the start of the transit time for the delivery of the goods.

c) Depending on the type of B/L used: Different types of Bills of Lading may have different implications for the delivery date. For example, a "Received for Shipment" B/L indicates the date when the goods were received by the carrier for shipment, but not necessarily the date when the goods were loaded onto the ship. On the other hand, a "Shipped on Board" B/L indicates the date when the goods were actually loaded onto the ship.

So, the delivery date can be understood as any of these, depending on the specific terms and conditions agreed upon in the contract of carriage.