UNEP-WCMC (2025). Risk Management in Other Effective Area-based Conservation Measures - Guidance on OECMs for asset managers and asset owners. UN Environment Programme World Conservation Monitoring Centre. Cambridge, UK. DOI:https://doi.org/10.34892/35b1-vs22
Other Effective Area-based Conservation Measures (OECMs) are sites where pre-existing management and governance is achieving long-term outcomes for biodiversity. These management and governance systems may have existed for a long time prior to the site being recognized as an OECM. Recognition of OECMs is increasing, driven by the adoption of Target 3 of the Kunming-Montreal Global Biodiversity Framework, which calls for the expansion of global networks of protected areas and OECMs to reach at least 30% of land, waters and seas conserved by 2030.
Increasing recognition of OECMs forms an emerging area that is important for investors to be aware of, particularly if assets within or near OECMs are negatively impacting biodiversity. The incorporation of OECM data into the Integrated Biodiversity Assessment Tool (IBAT) provides investors with a starting point for accessing these important data and a simple means of understanding and measuring the interfaces between their investments and OECMs. Expectations for investees should be clear: if any assets are situated within or near to an OECM, they must align with the management plan (or equivalent) for the area and not cause harm to biodiversity. This aligns with the approaches recommended for protected areas. In summary, investors should: