In 2021, a guidebook for the Other effective area-based conservation measure (OECM) in Colombia was launched to help practitioners identify, strengthen and report OECMs in the country. OECMs present major opportunities in recognizing important contributions to biodiversity conservation that are happening outside of government-recognized protected areas and thus, deepen representativeness and connectivity across systems of protected and conserved areas. The guide consists of three major parts. The first part explains the international context of the OECMs and its link to the Colombian sphere. The second part shows the step-by-step application of the criteria, practical tools, and evaluation of results. The third part explains the basis of world data and how to report to the OECM database that is administered by the United Nations Environmental Programme’s World Conservation Monitoring Centre (UNEP WCMC). UNEP WCMC is one of SGP’s key partners in the Global Support Initiative to territories and areas conserved by Indigenous Peoples and local communities (ICCA-GSI). The guide also features 7 case studies to provide practitioners with practical examples and reporting structures to the UNEP WCMC database.