When looking for an air cargo service provider, extensive research is required. freight or cargo requires documentation such as a commercial invoice of goods, bill of entry, certificate to carry hazardous goods (if applicable),airway bill, list of packed goods, and related instructions. These documents must be submitted to start the journey of goods on an airplane and even when the aircraft lands. Collecting and submitting these documents may seem easy, but it is a delicate and meticulous process requiring special software in some cases. Proper formatting of these documents should be done by a professional. Cargo companies have a team of experts that handle all the documentation on behalf of their customers.