MAWB is an abbreviation for Master Air Waybill. When a carrier receives a package to be delivered to a specified place as stipulated in the shipping terms, the paperwork is issued to a freight forwarder.
In most cases, the shipping process begins with a shipper delivering items to a forwarder. The products are subsequently delivered to the carrier firm by the forwarding company. The forwarder issues the HAWB - House Air Waybill upon receipt of the cargo from the shipper. MAWB is issued by the carrier on the other end of the procedure.