The Import Control System (ICS) is a European Union (EU) customs procedure that is designed to improve the security of the EU's external border and to facilitate the movement of goods into the EU. The ICS procedure applies to all importers of goods or merchandise in the EU, as well as carriers and providers of transport services.

Under the ICS procedure, all goods arriving in or transiting through the EU must be subject to an Entry Summary Declaration (ENS). The ENS must be submitted to the customs office of the country in which the goods will first arrive in the EU. For example, if a ship is travelling from Hong Kong to Le Havre and then on to Antwerp, the ENS must be submitted to the French customs office, even if the goods are ultimately destined for Antwerp.

Once the ENS is received by Customs, a security check is conducted on the data provided to determine if there is a risk associated with accepting the goods into the EU. This check is based on the goods being transported, as well as the shippers and recipients. If the risk assessment indicates a potential problem, the goods may be refused entry or subjected to additional checks upon arrival.

The ICS procedure is an electronic procedure that can be completed online through the Customs website or through specialized software provided by publishers. It is intended to improve the security and efficiency of the EU's customs system, while also facilitating trade with non-EU countries.