Pages 53-55 from FCO 551200 - Implementation of Article III of the non-proliferation treaty 1973

The document is a confidential communication discussing concerns about the supply of nuclear and nuclear-related materials to non-nuclear-weapon states without proper safeguards. The focus is on the Zangger Committee, which is seen as the appropriate forum for addressing such issues. It is emphasized that the Zangger system should be implemented before attempting to expand its scope. The document mentions that the UK stood against the inclusion of certain items on the Trigger List, including zirconium and zircalloy, due to difficulties in distinguishing their use for nuclear or civil purposes. The UK and the US sought to balance international requirements with responsible decision-making. The document also mentions discussions related to the Madras Reactor in India, with the US deciding not to supply nuclear-grade zirconium to non-nuclear-weapon states without safeguards. The request is made for a thorough inquiry into whether the UK has supplied any nuclear components to India for the reactor. Several questions are proposed for investigation, including the licensing of exports and the current practices regarding zirconium. The document concludes by requesting cooperation in this inquiry and copies the letter to relevant individuals.