“ Accordingly, as long as they maintain such arrangements, the provisions of Article 1 of this Protocol shall apply to Ireland under the same terms and conditions as for the United Kingdom. Nothing in Article 7a of the Treaty establishing the European Community, in any other provision of that Treaty or of the Treaty on European Union or in any measure adopted under them, shall affect any such arrangements. ”

“ Article 3 The other Member States shall be entitled to exercise at their frontiers or at any point of entry into their territory such controls on persons seeking to enter their territory from the United Kingdom or any territories whose external relations are under its responsibility for the same purposes stated in Article 1 of this Protocol, or from Ireland as long as the provisions of Article 1 of this Protocol apply to Ireland. ”