Presented are a series of fourteen standards for Ecoregional Assessments. These Standard define minimum criteria for credibility and conservation impact for ecoregional scale assessments based on efforts by The Nature Conservancy and the World Wildlife Fund.

These standards do not define or dictate approaches, methods, or tools. Ecological patterns, available data, analytical tools and capacities, funding, and timeframes vary greatly among ecoregions and assessment teams. This variety of contexts around the world mandates flexibility. This set of standards allows flexibility for the variety of situations that are faced and the opportunity for innovation while
retaining a minimum level of rigor and consistency in conservation planning science and information needs.