What is the difference of seaway bill and ocean bill of lading?

A seaway bill is a document of title that serves as a receipt for goods and can be used for tracking shipments, but it is generally non-negotiable, meaning it cannot be transferred to another party. In contrast, an ocean bill of lading is a negotiable document, allowing the holder to transfer ownership of the goods while they are in transit. Additionally, an ocean bill of lading often includes more detailed terms and conditions regarding the shipment, while seaway bills are simpler and primarily focus on the receipt of goods.