Switzerland–European Union relations
The currency of Switzerland is the Swiss franc. Switzerland (with Liechtenstein) is in the unusual position of being surrounded by countries that use the euro. As a result, the euro is "de facto" accepted in many places, especially near borders and in tourist regions. Swiss Federal Railways accept euros, both at ticket counters and in automatic ticket machines. Also many public phones, vending machines or ticket machines accept euro coins. Many shops and smaller businesses that accept euros take notes only, and give change in Swiss francs, usually at a less favourable exchange rate than banks. Many bank cash machines issue euros at the traded exchange rate as well as Swiss francs.
Liechtenstein–Switzerland relations
At the request of Liechtenstein's government in 1919, Switzerland safeguards Liechtenstein's interests and citizens abroad. The two form a common economic and monetary area (Liechtenstein has used the Swiss franc (since 1920) and has had a customs union (since 1924) with Switzerland with open borders (though both are now also party to the Schengen Agreement). The countries also have a common patent system. Switzerland is empowered to enter into treaties on Liechtenstein's behalf if Liechtenstein is not represented at the treaty negotiations; this power has most often been exercised with treaties involving customs duties or procedures.