On 24 June 2011, the European Council called for the finishing of negotiations by the end of the month, and signing of the Treaty of Accession by the end of the year. Negotiations were subsequently closed on 30 June 2011, and on 14 September 2011 the accession treaty was finalised and made public. On 12 October 2011 the European Commission delivered a favourable opinion on the accession of Croatia to the European Union.