The United Nations Framework Convention on Climate Change (UNFCCC) established its Financial Mechanism to facilitate the provision and transfer of resources from developed to developing countries. The Global Environment Facility became the first operating entity of the Financial Mechanism after the Conference of the Parties (COP) to the UNFCCC, and the GEF Council agreed to a Memorandum of Understanding (MOU) in 1996. This agreement placed the GEF under the guidance of the COP, as Article 11 of the Convention states that the Financial Mechanism “shall function under the guidance of and be accountable to the Conference of the Parties, which shall decide on its policies, program priorities and eligibility criteria related to this Convention.” The yearly COPs have provided an opportunity for Parties to update and renew their guidance to the GEF. To date, there have been 145 UNFCCC COP decisions and 526 paragraphs that offer guidance to the GEF (see Table 1). In addition, the Conferences of the Parties serving as the meeting of the Parties to the Paris Agreement (CMA) have issued 40 decisions and 115 paragraphs as guidance to the GEF (see Table 2). Key areas of Convention guidance have included: the GEF’s role as an operating entity of the Financial Mechanism, including the Paris Agreement; the GEF’s institutional and procedural reform; transparency and access to GEF funds; country engagement and empowerment; reporting on greenhouse gas (GHG) inventories; support for technology transfer; and ongoing programming in mitigation and adaptation.