Domestic and international shipments by air move under a standardised air waybill. It is the basic airline document covering the movements of shipments on international and domestic air freight. The contents of the document provide information needed for dispatch and the proper handling at points of origin, en route and destinations. It accompanies every shipment. Usually the air bill is prepared in sets of seven. They are respectively as follows: carrier’s accounting .copy, invoice, consignee memo, delivery receipt, original station copy, and destination station copy.