By resolution 58/4 of 31 October 2003, the UN General Assembly adopted the United Nations Convention against Corruption (UNCAC) and urged all States and competent regional economic integration organizations to sign and ratify the Convention as soon as possible in order to ensure its rapid entry into force. The Convention was open for signature from 9 to 11 December 2003 in Merida, Mexico and thereafter at the United Nations Headquarters in New York until 9 December 2005. Guyana acceded to the Convention in April 2008
International Anti-Corruption Day
In order to raise awareness of corruption and the role of the Convention in combating and preventing it, the General Assembly decided that 9 December should be designated International Anti-Corruption Day. The Fifth Session of the Conference of State Parties to the Convention, held in Panama during the period 25-29 November 2013,