This whitepaper explores a set of related ideas that we collectively refer to as “decentralized SSI governance”. The purpose of such governance is to support organizations as they transform their IT, their business-process artifacts, such as forms, and their policies to reap the benefits of SSI. This paper introduces SSI Assurance Communities (SSI-ACs) and identifies three specific governance topics: credential-types, accreditation and decision tree support. Tools and services are suggested that help with these topics. Furthermore, a distinction is made between what the business primarily cares about (business and business applications), and the technology and other things that are just expected to work (which we call “SSI-infrastructure”). Main takeaways: ● Self-sovereign identity could save time and money on bureaucratic processes (form filling and validation) by automating business decisions. ● Business decisions require governance to ensure the data used for making them qualifies (is valid) for that purpose, and continuously remains compliant with laws, regulations, and company policies (which regularly change). ● Companies could share this governance burden by supporting communities that support the provisioning of SSI-related assurances for their specific purposes. ● Such (focused) assurance communities could be supported by tools like credential catalogs and accreditation credentials. We hope this paper inspires SSI proponents to develop not only real SSI infrastructure, but also assurance mechanisms for exchanging qualified data.