All projects or programs must fulfill the following criteria to be eligible for GEF funding.

• Eligible country: Countries may be eligible for GEF funding in one of two ways: a) if the country has ratified the conventions the GEF serves and conforms with the eligibility criteria decided by the Conference of the Parties of each convention; or b) if the country is eligible to receive World Bank (IBRD and/or IDA) financing or if it is an eligible recipient of UNDP technical assistance through its target for resource assignments from the core (specifically TRAC-1 and/or TRAC-2). 
• National priority: The project must be driven by the country (rather than by an external partner) and be consistent with national priorities that support sustainable development.
• GEF priorities: The project has to address one or more of the GEF focal area strategies (Biodiversity, International Waters, Land Degradation, Chemicals and Waste, and Climate Change Mitigation, as well as cross-cutting issues like sustainable forest management).
• Financing: The project has to seek GEF financing only for the agreed incremental costs on measures to achieve global environmental benefits.
• Participation: The project must involve the public in project design and implementation, following the Policy on Public Involvement in GEF-Financed Projects and the respective guidelines.