The UN System is complicated: people from many organizations work together to accomplish challenging goals in complex environments. Coordination is a vital part of the work of the UN system.
The General Assembly adopts high-level policy goals for the UN system, such as the Sustainable Development Goals.
The Security Council reviews any situation involving political or security questions.
Coordination between the UN and specialized agencies is assigned to the Economic and Social Council (ECOSOC) by Chapter X of the UN Charter.
At the level of the secretariats of the organizations, there are several coordination bodies, including:
UN System Chief Executives Board for Coordination (CEB or UNCEB)
There are several mechanisms in place for coordination of humanitarian assistance.
A/RES/46/182 of 19 Dec. 1991 established the following:
Subsequently, the Secretary-General established: