To ask the Secretary of State for Energy which materials in use at the Atomic Energy Authority establishment at Harwell are covered by Euratom safeguards.

Uranium, thorium and plutonium are used at Harwell for civil purposes. In accordance with articles 77 and 197 of the Euratom treaty, all these materials are subject to Euratom safeguards.

To ask the Secretary of State for Energy which buildings at the Atomic Energy Authority establishment at Harwell are covered by the tripartite International Atomic Energy Agency/Euratom/UK safeguards agreement.

For security reasons it is not our policy to disclose which buildings at nuclear establishments contain nuclear material. All civil nuclear material at Harwell and other establishments is subject to Euratom safeguards and to the terms of the UK-EuratomInternational Atomic Energy Agency tripartite agreement.