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PMA neither loaded nor unloaded ships over the weekend, leaving yard and gate operations up to individual terminals.
PMA said ships will not load or unload cargo Thursday, Saturday, Sunday or Monday due to continuing ILWU slowdowns.
Union disputes claims that West Coast container docks are too congested to unload ships at night.
The International Association of Classifications Societies said it would continue to study the report and the will finalized the requirements soon.
The fellow NYK Group companies said vessel adjustments reduced CO2 emissions by 23%.
The federal agency alleges shipments did not include relevant documents and were improperly packaged and labeled.