You must deliver the goods making them available to the buyer at the agreed terminal at the port or place of destination on the date or within the agreed deadlines. The seller must sign a contract (which runs on your own) to transport the goods to the terminal, and unload the goods the means of transport in question. The seller is not required faced with the purchaser to have insurance. However, you must provide the buyer (assuming the costs) the document that allows you to specify the receipt of goods. The Incoterm DAT requires the seller pays export tariffs of goods; however, it does not require him to pay import tariffs.
You must receive the goods as soon as they have been delivered and pay the price as has been agreed in the sales contract. The buyer must inform the seller also about the need to provide all information related to security required for the export, import, and transport of goods to their final destination.
This standard was created specifically for container transport. It also adapts to conventional shipping, when the seller wants to keep the risks of unloading the vessel at the port of destination. It should then specify the place where the goods will be made available (dock, ready for shipment…)