This document outlines current efforts by the Centers for Medicare & Medicaid Services and the states to measure access and quality within Medicaid, describes CMS’s existing access monitoring regulatory approaches, and proposes a Medicaid Access Measurement and Monitoring Plan based on these efforts. It recommends an access framework, an initial core set of access measures, and strategies for implementation and evolution of the plan. The goal is to further enable CMS to monitor Medicaid access at the state level, and ultimately to help identify priority areas for access improvement, as well as particular policies and practices that contribute to access.