Automated Export System

The Automated Export System (AES) is "a nationwide system operational at all ports and for all methods of transportation through which export shipment data required by multiple agencies is filed electronically to Customs, using the efficiencies of Electronic Data Interchange (EDI). AES provides an alternative to filing paper Shipper's Export Declarations (SEDs), so that export information is collected electronically and edited immediately.

Source
Export Administration Regulations, Part 772.