From May 5 to May 11, 2007, the 18th ISO/TC46/SC11 conference was held in San Diego, Spain. The conference was a part of the 34th plenary meeting of ISO/TC46. ISO of Spain undertook this conference. Four technique sub-committees of ISO/TC46 committee and fourteen working groups of sub-committees held conferences in San Diego at the same time, and delegations form more than 20 countries joined the conferences. 75 delegations from 18 countries which make up ISO/TC46/SC11 joined the conferences. This 18 countries are Australia, Canada, US, Britain, Sweden, Switzerland, Denmark, Estonia, Finland, Holland, Spain, South Africa, Kenya, New Zealand, France, Japan, Korea and China. Chinese delegation was organized by the State Archives Administration and was made up of 5 people: Ma Xiaobin (head of the delegation), vice director of Archives Administration of Sichuan Province, Professor An xiaomi form SIRM, Professor Zhang Zhengqiang form Nanjing Political College Shanghai Branch, Li Wendong form Foreign Affairs Office of the State Archives Administration and Song Yang form Law Section of the State Archives Administration.