It was amended on 7 May 1959 to give Britain access to non-nuclear components, and to permit the transfer of special nuclear material such as plutonium, highly enriched uranium (HEU) and tritium.
It was amended on 7 May 1959. This was to give Britain access to non-nuclear components, and to permit the transfer of special nuclear material such as plutonium. Plutonium was highly enriched uranium (HEU). Plutonium was tritium.