Legal tender
The Swiss franc is also the currency used for administrative and accounting purposes by most of the numerous international organisations that are headquartered in Switzerland.
Liechtenstein
Liechtenstein participates in a customs union with Switzerland and employs the Swiss franc as the national currency. The country imports about 85% of its energy. Liechtenstein has been a member of the European Economic Area (an organization serving as a bridge between the European Free Trade Association (EFTA) and the European Union) since May 1995.