The International Nuclear Information System (INIS) was established in 1970 by the International Atomic Energy Agency to facilitate the exchange of information on the peaceful use of nuclear technology. INIS maintains the world's largest collection of published literature on nuclear science and technology, containing over 3.4 million citations and abstracts as well as 350,000 full-text documents. Membership in INIS is open to states in the IAEA and other international organizations, and currently includes 129 countries and 24 organizations.