49 U.S.C. § 80104: Form and requirements for negotiation

A negotiable bill of lading may be negotiated by indorsement. An indorsement may be made in blank or to a specified person. If the goods are deliverable to the order of a specified person, then the bill must be indorsed by that person. A negotiable bill of lading may be negotiated by delivery when the common carrier, under the terms of the bill, undertakes to deliver the goods to the order of a specified person and that person or a subsequent indorsee has indorsed the bill in blank. a common carrier, under the terms of the bill, undertakes to deliver the goods to that person; or when the bill is negotiated, it is in a form that allows it to be negotiated by delivery. The validity of a negotiation of a bill of lading is not affected by the negotiation having been a breach of duty by the person making the negotiation, or by the owner of the bill having been deprived of possession by fraud, accident, mistake, duress, loss, theft, or conversion, if the person to whom the bill is negotiated, or a person to whom the bill is subsequently negotiated, gives value for the bill in good faith and without notice of the breach of duty, fraud, accident, mistake, duress, loss, theft, or conversion. When goods for which a negotiable bill of lading has been issued are in a common carrier’s possession, and the person to whom the bill has been issued retains possession of the bill after selling, mortgaging, or pledging the goods or bill, the subsequent negotiation of the bill by that person to another person receiving the bill for value, in good faith, and without notice of the prior sale, mortgage, or pledge has the same effect as if the first purchaser of the goods or bill had expressly authorized the subsequent negotiation.