The Security Council, by its resolution 1528 (2004) of 27 February 2004, established the United Nations Operation in Côte d'Ivoire (UNOCI) for an initial period of 12 months as from 4 April 2004. By the same resolution, the Council requested the Secretary-General to transfer authority from the United Nations Mission in Côte d'Ivoire (MINUCI) and the Economic Community of West African States (ECOWAS) forces to UNOCI on that date.

By its resolution 1609 (2005) of 24 June 2005, the Security Council extended the mandate of the Operation and the French forces which support it for a period of seven months, until 24 January 2006, approved the mandate of UNOCI and authorized an increase in the military and civilian police components of the Operation.

At its fifty-ninth session, the General Assembly decided to appropriate to the special account for UNOCI the amount of $177,826,200 for the maintenance of the Operation for the period from 1 July 2004 to 30 June 2005 and to apportion among Member States the amount of $92,864,793 for the Operation for the period from 1 January to 4 April 2005; also decided that there should be set off against the apportionment among Member States their respective share in the Tax Equalization Fund of the estimated staff assessment income of $1,438,826 approved for the Operation for the period from 1 January to 4 April 2005; further decided to apportion among Member States the amount of $84,961,407 at a monthly rate of $29,637,700 for the period from 5 April to 30 June 2005, subject to a decision of the Security Council to extend the mandate of the Operation; and decided that there should be set off against the apportionment among Member States their respective share in the Tax Equalization Fund of the estimated staff assessment income of $1,316,374 approved for the Operation for the period from 5 April to 30 June 2005 (resolution 59/16 A).

At its resumed fifty-ninth session, in June 2005, the General Assembly decided to appropriate to the Special Account for the Operation the amount of $386,892,500 for the period from 1 July 2005 to 30 June 2006, inclusive of $367,501,000 for the maintenance of the Operation, $15,856,300 for the support account for peacekeeping operations and $3,535,200 for the United Nations Logistics Base and to apportion among Member States the amount of $386,892,500 at a monthly rate of $32,241,041, subject to a decision of the Security Council to extend the mandate of the Operation; also decided that there should be set off against the apportionment among Member States their respective share in the Tax Equalization Fund of $10,150,900, comprising the estimated staff assessment income of $7,623,600 approved for the Operation for the period from 1 July 2005 to 30 June 2006, the prorated share of $2,241,300 of the estimated staff assessment income approved for the support account and the prorated share of $286,000 of the estimated staff assessment income approved for the Logistics Base; further decided to set off against the apportionment among Member States their respective share in the unencumbered balance and other income in the amount of $13,328,900 in respect of the financial period ended 30 June 2004; and decided that the decrease in the estimated staff assessment income of $219,600 in respect of the financial period ended 30 June 2004 should be set off against the credits from the amount of $13,328,900 (resolution 59/16 B).