Later, in early 1956, the group expanded to twelve with representatives from the USSR, Czechoslovakia, India, and Brazil. While the statutes were being drafted, more than 1,500 scientists gathered in Geneva for the UN's First International Conference on Peaceful Uses of Nuclear Energy. October 1956 saw 82 nations of the UN approve the statutes, which now include several amendments calling for control and regulation of nuclear fuels (Steinberg, 1996, 65).
In 1957, these nations all agreed to abide by the directives of the IAEA: Afghanistan, Albania, Argentina, Australia, Austria, Belarus, Brazil, Bulgaria, Canada, Cuba, Denmark, Dominican Republic, Egypt, El Salvador, Ethiopia, France, Germany, Greece, Guatemala, Haiti, Holy See, Hungary, Iceland, India, Indonesia, Israel, Italy, Japan, Republic of Korea, Monaco, Morocco, Myanmar, Netherlands, New Zealand, Norway, Pakistan, Paraguay, Peru, Poland, Portugal, Romania, Russian Federation, South Africa, Spain, Sri Lanka, Sweden,
Switzerland, Thailand, Tunisia, Turkey, Ukraine, United
Kingdom, United States, Venezuela, Viet Nam, and Yugoslavia. These nations joined in 1958: Belgium, Cambodia, Ecuador, Finland, Islamic Republic of Iran, Luxembourg, Mexico, Philippines, and Sudan.
Other nations and their dates of ratification and/or joining the IAEA are:
Chile, Colombia, Ghana, and Senegal
Lebanon, Mali, and Democratic Republic of the Congo
Algeria, Bolivia, C(te d'Ivoire, Libyan Arab Jamahiriya, Syrian Arab Republic, and Uruguay
...