United States: Demurrage = space at the terminal = Overseas: Storage = space at the terminal United States: Storage = space at rail depot, warehouse = Overseas: Storage = space at rail depot, warehouse. United States: Per Diem = use of the equipment = Overseas: Demurrage = use of the equipment. United States: Detention = time for loading/unloading = Overseas: Detention = time for loading/unloading.