 The table below shows the ratification progress in European Union member states.Hungary was the first member state where the treaty was approved by a national parliament on 17 December 2007.Note that the assent of the head of state represents the approval of the parliamentary procedure, while the deposition of the instrument of ratification refers to the last step of ratification, which might require a separate signature of the head of state on the instrument of ratification for it to be deposited.