The TIR Convention permits the international carriage of goods by road from one customs office of departure in one country to a customs office of arrival in another country, through as many countries as necessary, without any intermediate frontier check of the goods carried. This, of course, requires a number of precautionary measures, such as customs control and secure sealing or prescriptions for the design of the load compartment or the container, in order to avoid smuggling. To cover duties and taxes at risk throughout the journey, an international guaranteeing chain has been established under the Convention. The International Road Transport Union (IRU) has been authorized to distribute the international Customs transit and guarantee document, the so-called TIR Carnets and to manage the international guarantee system. The overall supervision of the TIR Convention and its application in all Contracting States falls within the responsibility of the TIR Administrative Committee, an inter-governmental organ comprising all Contracting Parties and its TIR Executive Board (TIRExB), comprising 9 elected members from the Contracting Parties. The TIR Convention has contributed significantly to facilitation of international transport and trade in the UNECE region, particularly between EU and non-EU countries as well as among non-EU countries.