Office of Internal Oversight Services (OIOS): Delivering objective oversight results that make a difference.

About OIOS
The Office of Internal Oversight Services (OIOS) assists the Secretary-General in fulfilling his oversight responsibilities in respect of the resources and staff of the Organization through internal audit, monitoring, inspection, evaluation and investigation services.
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Mandate
OIOS was established in 1994, under General Assembly resolution 48/218B of 29 July 1994, to enhance the oversight functions within the United Nations. Member States took this action in response to the increased importance, cost and complexity of the Organization's activities.
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Our Work
OIOS' activities reflect the various methods used to ensure adequate oversight coverage of the Organization's resources. In fulfilling its internal independent oversight mandate, OIOS undertakes the following activities.
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