This publication provides an in-depth review of the status of implementation of the Convention on Biological Diversity (CBD) and of specific strategies and plans as part of CBD-determined National Biodiversity Strategies and Action Plans (NBSAP) at national levels. This has been achieved by identifying the current status of the various legal and policy instruments, strategies, action plans and institutional frameworks for biodiversity conservation in the EU overseas entities; noting the extent to which these instruments have been and are being implemented; identifying the main lessons learned and documenting some of the best practices and exemplary cases of biodiversity conservation in the overseas entities; and analysing the extent to which these instruments are consistent with, supportive of, and supported by the legislation, policies, strategies and institutional arrangements for biodiversity conservation.