The One Programme brings all members of the UN Country Team together under one nationally owned strategy that draws on the full range of UN expertise and ensures a fully integrated UN Country Team approach to delivering development results in a coherent manner. These One Programme development results are measurable and costed.

The One Programme brings important gains by ensuring that UN country programmes integrate the full range of UN, national and international partners’ expertise and experience; facilitating the systematic application of normative programming principles in the formulation, implementation, monitoring and evaluation of the programme; and achieving close alignment with national development priorities. It also increases access by programme countries to the mandates and resources of non-resident agencies. In transition countries, it is also an instrument for facilitating coherence with UN missions (when present).

The One Programme contributes towards strong national ownership and government leadership, increased transparency, reduced duplication, increased coherence of planning, and better delivery and reporting of results, particularly on cross-cutting development challenges. Where applicable, agency-specific programmatic documents should be harmonized and aligned with the UNDAF.