The mission of the International Association for K-12 Online Learning (iNACOL) is to ensure all students have access to a world-class education and quality online learning opportunities that prepare them for a lifetime of success. The Online Learning Definitions Project is designed to provide states, districts, online programs, and other organizations with a set of definitions related to online and blended learning in order to develop policy, practice, and an understanding of and within the field. The initiative began with a thorough literature review of existing definitions, followed by a research survey to iNACOL members and experts to ensure the efficacy of the definitions adopted. These definitions should.