The Federal Maritime Commission has been asked to set new policy preventing terminal operators and ocean carriers from charging unfair fees when uncontrollable incidents keep cargo from being picked up from ports on time.

“Recent events involving port congestion, labor strife, an ocean carrier bankruptcy, inclement weather and other disruption events have had crippling effects on US ports and the stakeholders who rely on the efficient movement of goods,” the 25-member Coalition for Fair Port Practices said in a petition filed with the commission.

During the incidents, storage and use charges have continued “even though shippers, consignees and drayage providers had no control over the events that caused the ports to be inaccessible and prevented them from retrieving their cargo or returning equipment.”

Cargo owners and trucking companies are normally given a certain number of free days to pick up containers of imported goods from ports after they have been unloaded from ships. After that, they can be charged demurrage, a fee intended to ensure that containers are removed quickly and efficiently. In addition, detention and per diem fees can be charged if the cargo containers and the trailers used to haul them are not returned within a specified time.

That system was thrown into disarray this fall when the bankruptcy of South Korea’s Hanjin Shipping left cargo owners unable to pick up containers on time and later prevented them from returning containers and chassis.

The petition asks the FMC to adopt a policy that would require free days to be extended during times of port congestion, weather-related events, port disruptions or delays caused by government actions or requirements beyond the control of the parties picking up or returning containers. Demurrage and similar fees charged during such incidents would be declared “unreasonable.”

In some cases, “compensatory” fees could be charged provided that they did not exceed actual storage or equipment use costs. The proposed policy would apply to ocean carriers and marine terminal operators.