[QUOTE=Chief Seadog;183887]IF that is what he was asking, the answer is that the HMF is only levied on the cargo shipped through the respective port, not the total amount of cargo the ship has onboard.
As far as how Matson and Tote make money, when I worked those trades they primarily carried cargo from a continental port to either Hawaii, Alaska, or Puerto Rico. There wasn’t much carried between continental U.S. ports, between Alaskan ports, or between ports in Hawaii. Not that it wasn’t done, but comparably it wasn’t much.[/QUOTE]
Alaskan and Hawaiian cargoes to/from mainland also enjoy exemption from Harbor maintenance fees (depending).