UNOPS is a self-funded UN organization that operates as a separate legal entity within the United Nations system. It is not a specialized agency or program of the UN, but rather a separate entity established by the UN General Assembly in 1973. UNOPS operates under a separate legal framework and is governed by its own executive board.

UNOPS is responsible for providing project management, procurement, and infrastructure services to other UN agencies, governments, and non-governmental organizations around the world. It works closely with its partners to implement sustainable development and humanitarian initiatives and support the UN's work in areas such as peace and security, development, and human rights.

As a self-funded organization, UNOPS generates revenue from its project management and infrastructure services and reinvests these funds in its operations and development initiatives. UNOPS is committed to promoting sustainability and social responsibility in all its activities and operations.