Section 123 Agreement
Agreement in the US Atomic Energy Act of 1954
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Section 123 of the United States Atomic Energy Act of 1954, titled "Cooperation With Other Nations", establishes an agreement for cooperation as a prerequisite for nuclear deals between the US and any other nation.[1][2] Such an agreement is called a 123 Agreement.[3] To date, the U.S. has entered into roughly twenty-six 123 Agreements with 52 countries.[4]
Agreement Countries
Countries with which the U.S. has a Section 123 Agreement as of 2025 include:
Current
Argentina[5]
Australia[5]
Brazil[5]
Canada[5]
China (with re-processing rights, requiring approval per each request)[6]
Euratom (with automatic re-processing rights)[6]
International Atomic Energy Agency (IAEA)[5]
India (With advance consent to reprocessing),[7] exempt from certain safeguards by Indo-U.S. civilian nuclear agreement.
Indonesia[5]
Japan (with automatic re-processing rights)[6]
Kazakhstan[5]
Republic of Korea[5]
Mexico[8]
Morocco[9]
Norway[8]
Philippines[8][10]
Russia[8][11]
Singapore[8][12]
Switzerland[8]
Taiwan[5] via the American Institute in Taiwan[8]
Thailand (1974–2014, 2025–2065)[5][13]
Turkey[5]
Ukraine[14][5]
UAE[15]
UK[8]
Vietnam[8]
Former
Bangladesh:[5] September 17, 1981 - June 24, 2012
Colombia[5][16]
Egypt[17][16]
South Africa:[5] December 4, 1997 - December 4, 2022