They can also reserve the necessary space on board an ocean vessel, if the exporter desires. If the cargo arrives at the port of export and the exporter has not already done so, freight forwarders may make the necessary arrangements with customs brokers to ensure that the goods comply with customs export documentation regulations. In addition, they may have the goods delivered to the carrier in time for loading. They may also prepare the bill of lading and any special required documentation. After shipment, they forward all documents directly to the customer or to the paying bank if desired.
Most general cargo is carried in containers, but some is still shipped as breakbulk cargo.
Besides the normal handling encountered in domestic transportation, a breakbulk shipment moving by ocean freight may be loaded aboard vessels in a net or by a sling, conveyor, chute, or other method, putting added strain on the package. In the ship's hold, goods may be stacked on top of one another or come into violent contact with other goods during the voyage. Overseas, handling facilities may be less sophisticated than in the United States and the cargo may be dragged, pushed, rolled, or dropped during unloading, while moving through customs, or in transit to the final destination. Moisture is a constant problem because cargo is subject to condensation even in the hold of a ship equipped with air conditioning and a dehumidifier. The cargo may also be unloaded in the rain, and some foreign ports do not have covered storage facilities.