The Thirtieth Amendment of the Constitution (Treaty on Stability, Coordination and Governance in the Economic and Monetary Union) Act 2012 (previously bill no. 23 of 2012) amended the Constitution of Ireland to permit Ireland to ratify the 2012 European Fiscal Compact and to preclude measures taken under the Compact from being held to be inconsistent with the Irish constitution. It was approved by referendum on 31 May 2012, by 60.3% to 39.7%, on a turnout of 50% and was signed into law by President Michael D. Higgins on 27 June 2012.