The CARE Principles for Indigenous Data Governance (Collective Benefit, Authority to Control, Responsibility, and Ethics) are a leading resource guiding the development of policies and practices for the governance of Indigenous data around the world. Today, as data actors and institutions seek to apply the CARE Principles to their data ecosystems, or mandate CARE within their organizational policies, new tools are needed to guide, assess, monitor, and ensure that CARE implementation adheres to the rights, interests, and protocols of the Indigenous Peoples and communities from which the data derive.