Air Waybill (AWB): This is the document of title to the goods travelling by air and is therefore non-negotiable. It travels with the cargo and acts as evidence of delivery of the goods travelling on board the plane.

Commercial invoice: Document establishing the conditions of sale for the goods and their specifications. Serves as proof of sale.

Packing list: A list of the contents in a package, completing the information of the invoice, which must be issued by the sender.

Customs clearance authorization: Document with which an importer or exporter authorizes a customs agent to submit one or several customs declarations on their behalf.