The resources collated below will help partners and stakeholders develop and apply national policies to address development impacts on biodiversity in line with best practice in the mitigation hierarchy, including offsets. The materials have been produced by COMBO, its partners and other collaborators. They provide an introduction to some of the themes that are important for understanding why and how biodiversity impacts should be addressed to achieve no net loss or net gain outcomes for biodiversity aligned with overarching biodiversity targets.

The IUCN Thematic Group Impact Mitigation and Ecological Compensation (IMEC), a global community of practice, also compiles useful material from a range of sources. COMBO+ has collaborated extensively with IMEC. The resources produced by the multistakeholer Business and Biodiversity Offsets Programme (BBOP) are worth consulting. 

The materials below are organised into several categories, covering information on the COMBO programme itself, technical briefs and other resources we have produced in collaboration with other initiatives, and useful weblinks. Country-specific resources will be listed here as well. We are supplementing these materials throughout COMBO's second phase of work.