The IEU has a mandate for both discharging an accountability function and supporting a learning function. These are central to the GCF being a learning organization as laid out in its Governing Instrument and its initial strategic plan.
The IEU undertakes independent overall, portfolio, country, thematic, programme evaluations that inform GCF strategic result areas. In key cases, it also supports and undertakes project evaluations. The IEU uses relevant and innovative methods and an independent peer-review mechanism that provides guidance on independent evaluations. The vision, criteria and guidelines for these are laid out in the independent evaluation policy. The IEU is also mandated to independently peer-review and attest the quality of GCF self-evaluations.