The Dangerous Goods Declaration (DGD), also known as the Shipper's Declaration for Dangerous Goods, is a document that is used to inform an aircraft operator or carrier about the presence of dangerous goods in a shipment. Dangerous goods are materials or items that pose a risk to health, safety, or property, and are regulated by governments and international organizations to ensure their safe transportation.

The DGD is an important part of the process of transporting dangerous goods by air, as it provides the carrier with critical information about the nature and characteristics of the goods being shipped. This information is used to determine the appropriate handling and storage procedures, as well as the necessary precautions that need to be taken to ensure the safe transportation of the goods.

The DGD is required by the International Air Transport Association (IATA) Dangerous Goods Regulations (DGR), which state that a Shipper's Declaration must be completed by the shipper for each consignment of dangerous goods. The DGD must be completed in a standardized format that is consistent throughout the transportation industry.

It is the responsibility of the sender or shipper of the goods to prepare the DGD and provide it to the carrier. It is important that the declaration is accurate and complete, as failure to do so can result in delays, fines, or other legal consequences.