CCSSO’s Advancing Inclusive Principal Leadership (AIPL) State Initiative is designed to help state education agencies develop and implement a plan to advance the preparation and practice of effective inclusive principal leadership anchored in this online guide. Through this initiative, four states—Arkansas, Georgia, Mississippi, and Ohio—are refining their principal preparation and development efforts to ensure an intentional focus on supporting the academic and social success of each learner, with an emphasis on those with disabilities.