Multi-speed Europe

The euro area, commonly called the eurozone (EZ), is a currency union of 21 member states of the European Union (EU) that have adopted the euro (€) as their primary currency and sole legal tender, and have thus fully implemented Economic and Monetary Union policies.

area of 29 European states without mutual border controls

area of the European Union's internal market and some of EFTA states established in 1994

intergovernmental financial organization

intergovernmental treaty

European Union regulations which are not imposed by certain member states by agreement

economic and political zone formed by a regional organization in Southeastern Europe

European Union procedure

political idea

Law enforcement treaty in part of Europe

intergovernmental agreement

intergovernmental European court concerning European patents

patent with uniform effect in the European contracting states