The Member States 25 March 1957, Consolidated version of the Treaty on the Functioning of the European Union#PART THREE - UNION POLICIES AND INTERNAL ACTIONS#TITLE VIII - ECONOMIC AND MONETARY POLICY#CHAPTER 2 - MONETARY POLICY#Article 133

7.6.2016 EN Official Journal of the European Union C 202/105 Article 133 Without prejudice to the powers of the European Central Bank, the European Parliament and the Council, acting in accordance with the ordinary legislative procedure, shall lay down the measures necessary for the use of the euro as the single currency.