The Core to College Initiative is designed to promote collaboration between the K-12 and higher education systems in implementing the Common Core State Standards (CCSS) and aligned assessments. The frequent lack of alignment between the content and rigor of high school courses and college courses has contributed to many college students being placed into non-credit-bearing remedial courses, limiting their chances of success at the postsecondary level. To address this challenge and to support students' successful transition to postsecondary education, the Core to College Initiative aims to improve the alignment between K-12 and postsecondary education systems in the initiative's participating states.