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PMA neither loaded nor unloaded ships over the weekend, leaving yard and gate operations up to individual terminals.
Draymen say they could be forced out of business by huge demurrage and detention bills.
Liner carriers in the transpacific say they will begin to impose a $1,000-per-FEU surcharge on Monday.
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.