Registration takes less than 1 minute.
The Korean liner company said it will continue to serve the Pacific Northwest region from Seattle.
Opponents say the fee drives port costs higher and those costs are difficult to pass on to shippers.
Move comes as ILWU, PMA talks enter 10th month.
Marine terminal officials agree that future contracts will require ongoing collaboration.
Maersk Line CEO Soren Skou told American Shipper container lines need to adapt to permanent overcapacity, and cited Maersk's network management as the primary driver of bumper profits in recent years.
Economist revised forecasts, predicting lower import growth and a second year of declines in exports.