THE EARL OF MANSFIELD
asked Her Majesty's Government:
If, when negotiating for entry into the Common Market, they will make it clear to the other countries concerned that such entry on the part of Great Britain will be possible only if we retain the right to withdraw from such an association at a later date, on due notice given, and under previously agreed conditions, should it be subsequently found that continued membership would be dangerous, or prejudicial, to our national prosperity or way of life.
§ THE JOINT PARLIAMENTARY UNDER-SECRETARY OF STATE FOR FOREIGN AFFAIRS (THE MARQUESS OF LANSDOWNE)
The Treaty of Rome contains no provisions for withdrawal or denunciation. Any proposal for the inclusion of such provisions would go beyond the adjustments to the Treaty provided for in Article 237. Under Article 236, proposals for amending the Treaty can be made by the Government of any member State or by the Commission and require unanimous approval.436WA
If Her Majesty's Government had come to the conclusion that British membership of the E.E.C. would be dangerous or prejudicial to our national prosperity or way of life, they would not have decided to apply to open negotiations with a view to acceding, on suitable terms, to the Treaty of Rome.