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Move comes as ILWU, PMA talks enter 10th month.
PMA neither loaded nor unloaded ships over the weekend, leaving yard and gate operations up to individual terminals.
Union disputes claims that West Coast container docks are too congested to unload ships at night.
Experimental off dock drop yard at the Port of Los Angeles could help speed containers.
The International Association of Classifications Societies said it would continue to study the report and the will finalized the requirements soon.
The federal agency alleges shipments did not include relevant documents and were improperly packaged and labeled.