In this chapter, the term short sea transportation means the carriage by vessel of cargo
(1) that is
(A) contained in intermodal cargo containers and loaded by crane on the vessel; or
(B) loaded on the vessel by means of wheeled technology; and
(2) that is
(A) loaded at a port in the United States and unloaded either at another port in the United States or at a port in Canada located in the Great Lakes Saint Lawrence Seaway System; or
(B) loaded at a port in Canada located in the Great Lakes Saint Lawrence Seaway System and unloaded at a port in the United States.
