CCSSO [Council of Chief State School Officers] recently convened a wide range of stakeholders through the Certification and Licensure Collective (CLC) to support states to improve certification and licensure systems, including initial licensure, renewal, and reciprocity or teacher mobility. Educator micro-credentials are a critical part of this effort so teachers can have the ability to expand, validate, and receive recognition for their professional learning journey. Additionally, educator micro-credentials are gaining momentum as an approach for educators to demonstrate proficiency on a discrete skill or competency to indicate their expertise. As states, districts, professional organizations, and other entities develop, or consider developing, systems and policies around the design, assessment, and/or implementation of micro-credentials for educators, it has become clear that some overarching guidance is essential to ensure sufficient quality and consistency. To address this, CCSSO partnered with Digital Promise to convene a task force to develop "Design, Assessment, and Implementation Principles for Educator Micro-credentials," a brief which aims to provide that guidance for 1) designing appropriate educator micro-credential content and contours, 2) maintaining adequate criteria for assessing educator micro-credentials, and 3) ensuring the experience of engaging in micro-credentials is relevant and impactful for educators. [Numerous organizations contributed to the development and endorsement of the micro-credential principles. Refer to the full text for the complete list.]