Home2012 Treaties and Agreements ...Multilateral (12-131) – Agreement Regarding the Establishment, Construction and Operation of Uranium Enrichment Installations Using Gas Centrifuge Technology in the United States hide Multilateral (12-131) – Agreement Regarding the Establishment, Construction and Operation of Uranium Enrichment Installations Using Gas Centrifuge Technology in the United States TIAS Office of Treaty Affairs January 31, 2012 Nuclear Energy Agreement signed at Paris February 24, 2011; entered into force January 31, 2012. With agreed minute. Download attachment [1 MB] Tags International Law, Treaties, and Agreements Multilateral Relations and Cooperation Nuclear Energy