In its resolution 55/61 of 4 December 2000, the General Assembly recognized that an effective international legal instrument against corruption, independent of the United Nations Convention against Transnational Organized Crime (resolution 55/25, annex I) was desirable and decided to establish an ad hoc committee for the negotiation of such an instrument in Vienna at the headquarters of the United Nations Office on Drugs and Crime.
The text of the United Nations Convention against Corruption was negotiated during seven sessions of the Ad Hoc Committee for the Negotiation of the Convention against Corruption, held between 21 January 2002 and 1 October 2003.
The Convention approved by the Ad Hoc Committee was adopted by the General Assembly by resolution 58/4 of 31 October 2003. The General Assembly, in its resolution 57/169 of 18 December 2002, accepted the offer of the Government of Mexico to host a high-level political signing conference in Merida for the purpose of signing the United Nations Convention against Corruption.
In accordance with article 68 (1) of resolution 58/4, the United Nations Convention against Corruption entered into force on 14 December 2005. A Conference of the States Parties is established to review implementation and facilitate activities required by the Convention.