A Shipper's Export Declaration (SED) is a document required by the United States government for shipments valued over $2,500 or shipments requiring an export license. It provides information about the commodities being exported, their value, destination, and other details necessary for export control and statistical purposes. The SED is typically filed electronically through the Automated Export System (AES), which is a part of the U.S. Customs and Border Protection (CBP). This declaration helps the government monitor and regulate exports, ensuring compliance with trade regulations and national security measures.