The cargo ship (SL) as seagoing or inland waterway ship or pushed lighter, is fitted with a pallet high bay shelving system which has both sides of at least one bay row (RG) has a number of storage bays (cells) (1) placed either above one another or side for the pallets units, and has a drivable pallet vehicle (RFZ) to store and remove the pallet units (PE) in the bay rows (RG). The pallet vehicle (RFZ) is fitted with a vertical, central mast (2) on its chassis (3) and accommodates on one or both sides of the mast a satellite vehicle (4) capable of extending into or out of the storage bays (1) transversely to the travel direction (f) of the transversely or longitudinally propellable pallet vehicle (RFZ), and the satellite vehicles (4) can travel right up to the respective ship's side walls (5), and over them in the case of cargo space overbuilt to the outside (SL), for storage and removal of the pallet units (PE).