The Protocol Directorate provides guidance for the bulk of official relations between foreign diplomatic representations in Belgium on the one hand and the Belgian state on the other, ensuring the application of the Vienna Conventions on diplomatic and consular relations and the headquarters agreements concluded between Belgium and the international organisations either established on its soil or with representative offices there.

The Directorate deals with ongoing affairs in relation to diplomatic privileges, immunities and facilities as well as other issues strictly concerning protocol.

It is also responsible for receiving distinguished guests and ensuring the safety of those guests and diplomatic missions. Moreover, the Directorate is in charge of granting and recognising nobiliary concessions and honorary distinctions of the National Order.