Article 4 Use of the euro

The amounts reported by Member States shall be denominated in euro.

Member States which have not adopted the euro as their currency by the date when the report under Article 3(2) of Delegated Regulation (EU) 2015/1970 is submitted shall convert amounts in national currency into euro in accordance with Article 133 of Regulation (EU) No 1303/2013 or, where appropriate, Article 28 of Regulation (EU) No 1299/2013 of the European Parliament and of the Council^f1. Where the expenditure has not been registered in the accounts of the certifying authority, the most recent monthly accounting exchange rate, published electronically by the Commission at the moment of initial reporting, shall be used.