The Ocean Health Index (OHI) is the first assessment tool that scientifically combines key biological, economic, and social elements of ocean health to guide decision makers towards sustainable use of the ocean. Now working in more than 30 countries globally, the Ocean Health Index is a useful tool across geographic jurisdictions where coastal and marine policy decisions are made. Its standardized structure is repeatable and familiar across assessment jurisdictions but it is flexible to represent the important social and ecological characteristics, values, and priorities of the area assessed. Independent groups are able to lead assessments within their own waters, deciding what is important to measure and which data to include while building directly from the experiences and methods from other OHI assessments. Webinar co-sponsored by the EBM Tools Network (co-coordinated by NatureServe and OpenChannels.org) and MEAM.