Using these articles require unanimity among all the governments, but not difficult treaty amendment and ratification procedures that would require the approval of national Parliaments and/or by a national referendum.
Until now all passerelles have had a specific purpose.
The Future
The draft Constitution (art. I-24.4), proposes the introduction of two general passarelles. The first passerelle makes it possible changing the procedure for adopting laws and framework laws from a special legislative procedure to the ordinary legislative procedure for policy areas in part III of the Constitution. The second passerelle makes it possible to move from unanimity voting to qualified majority voting in the Council for policy areas in part III of the Constitution. Using these articles will require unanimity amongst the governments but no national ratification.