Franc
The Swiss franc (ISO code: CHF or 756), which appreciated significantly against the new European currency from April to September 2000, remains one of the world's strongest currencies, worth today around five-sixths of a euro. The Swiss franc is used in Switzerland and in Liechtenstein. Liechtenstein retains the ability to mint its own currency, the Liechtenstein franc, which it does from time to time for commemorative or emergency purposes.
Switzerland–European Union relations
On 6 September 2011, the Swiss franc effectively became fixed against the euro: the Franc had always floated independently until its currency appreciation became unacceptable during the eurozone debt crisis. The Swiss National Bank set an CHF/EUR peg that involved a minimum exchange rate of 1.20 francs to the euro, with no upper bound in place. The Bank committed to maintaining this exchange rate to ensure stability. The peg was abandoned on 15 January 2015, when renewed upward pressure on the Swiss franc exceeded the Bank's level of tolerance.