The Member States 7 February 1992, Consolidated version of the Treaty on European Union#TITLE VI - FINAL PROVISIONS#Article 49(ex Article 49 TEU)

7. Where the Treaty on the Functioning of the European Union or Title V of this Treaty provides for the Council to act by unanimity in a given area or case, the European Council may adopt a decision authorising the Council to act by a qualified majority in that area or in that case. This subparagraph shall not apply to decisions with military implications or those in the area of defence.