Crowley and Seaboard now have VSAs to the Dominican Republic as well as Panama and Costa Rica.
The new structure gives port ability to handle larger, heavier shipments.
Global Shippers Forum wants IMO to consider shippers needs as it develops carbon reporting requirements.
The lack of a labor contract for West Coast longshoremen is contributing to West Coast port congestion, trade groups say.
The organization said worldwide volumes will increase through 2018.
Hunter Harrison said that despite a couple of meetings, a deal was never on the table.