the form of bill given when a shipment is to be transported on the route of one carrier, then on the route of one or more others, using a single set of covering documents, a single bill of lading covering receipt of the cargo at the point of origin for delivery to the ultimate consignee, using two or more modes of transportation, a single bill of lading covering both the domestic and international carriage of an export shipment. An air waybill, for instance, is essentially a through bill of lading used for air shipments. Ocean, konossement, milles on märgitud, et kaupade vedu viiakse läbi rohkem kui ühe vedaja poolt, põhiveokiri - veokiri, mis hõlmab eksportsaadetise edasitoimetamist nii kodu- kui välismaal. Nt on õhuveokiri (air waybill) sisuliselt põhiveokiri. seevastu mereveod nõuavad rahvusvahelise lasti jaoks