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United Nations Convention Against Corruption

Anti-corruption treaty

  • 17 min read
  • 6 chapters

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Through United Nations, Multilateralism and International law

States Parties – countries that have ratified the convention – are expected to cooperate in criminal matters and consider assisting each other in investigations of and proceedings in civil and administrative matters relating to corruption. The Convention further calls for the participation of civil society and non-governmental organisations in accountability processes and underlines the importance of citizens' access to information.

Signatures, ratifications, and entry into force

UNCAC was adopted by the United Nations General Assembly on 31 October 2003 by Resolution 58/4. It was opened for signature in Mérida, Yucatán, Mexico, from 9 to 11 December 2003 and thereafter at UN headquarters in New York City. It was signed by 141 countries. As of October 2023, there are 192 parties, which includes 187 UN member states, the Cook Islands, Niue, the Holy See, the State of Palestine, and the European Union.

As of September 26, 2025, the 6 UN member states that have not ratified the convention are (asterisk indicates that the state has signed the convention):

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