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 shipments, on the other hand, usually require two separate documents - an inland bill of lading for domestic carriage and an ocean bill of lading for international carriage. Through bills of lading, therefore, cannot be used., 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 tavaliselt kaht eraldi dokumenti - siseveokirja (inland bill of lading) ja mereveokirja (ocean bill of lading).