§ Mr. MacdonaldTo ask the Secretary of State for Defence whether, under the terms of the Anglo-United States agreement on the uses of atomic energy for mutual defence purposes of 1958, the United Kingdom can conduct any collaborative programme, involving the development and production of nuclear weapon systems, with any country other than the United States of America without the prior agreement of the United States Government.
§ Mr. Alan ClarkThe United Kingdom is constrained by the terms of the non-proliferation treaty in collaboration with other countries on nuclear weapons. Additionally, under the terms of the 1958 United Kingdom-United States agreement, United States approval would be necessary if the information to be exchanged originated from the United States. The United States is subject to similar constraints with regard to United Kingdom information.