Customs brokers in the United States prepare and submit documentation to notify or obtain clearance from government agencies such as the U.S. Food and Drug Administration, the U.S. Department of Agriculture, and the Fish and Wildlife Service.
They usually have loading docks to load and unload goods from trucks. Sometimes warehouses are designed for the loading and unloading of goods directly from railways, airports, or seaports. They often have cranes and forklifts for moving goods,
In economics, the words cargo and freight refer in particular to goods or produce being conveyed—generally for commercial gain—by water, air or land. Cargo was originally a shipload.