This report describes the differences in early and long-term college outcomes for Oklahoma ACT-tested students between those who were monitored early with ACT Explore® and ACT Plan® and those who did not take these two assessments prior to taking the ACT® Test. Findings support that early monitoring of college and career readiness with ACT Explore and ACT Plan is associated with:(1) increased college enrollment; (2) decreased remediation; (3) increased college achievement; (4) increased college persistence; and (5) increased degree completion. early monitoring of student progress toward college and career readiness and intervening with students not on track to graduate from high school ready for college or career is important and beneficial for all in a state. With ACT Explore, ACT Plan, and the ACT Test, schools, districts, and states can assess student achievement in grades 8, 10, and 11 or 12 while monitoring student, school, and state growth toward college and career readiness.