This issue brief for the National Association of Charter School Authorizers deals with the unique challenges of authorizing blended charter schools, which combine digital learning with instruction at supervised brick-and-mortar locations. Authorizing blended charter schools requires a mix of application review and oversight methods applicable to typical brick-and-mortar charter schools and full-time online charter schools. This brief begins with an explanation of the variety of blended charter school models, followed by a brief discussion of key issues for authorizer awareness and consideration in the blended school context, with attention to both initial approval and ongoing oversight. It then provides more specific guidance on evaluating proposals for blended charter schools. Finally, the brief provides general recommendations for overseeing and evaluating blended charter schools.