CMS guidance requires states to comply with processes and milestone reviews for both MMIS and IE&E system implementations to achieve CMS system acceptance and/or certification. In support of this guidance, CMS has developed and required states to implement the Medicaid Enterprise Certification Life Cycle (MECL) and Toolkit (MECT) for MMIS implementations, and the Medicaid Eligibility and Enrollment Life Cycle (MEELC) and Toolkit (MEET) for IE&E implementations. This roundtable will discuss inclusion of the MECL and MEELC from various project stakeholder perspectives in the approach to your Medicaid enterprise modernization; the roles and responsibilities of the state, the PMO and the IV&V vendor; and how to successfully incorporate these processes into your schedule and project plan based on lessons learned from states at different phases of each lifecycle.