NECTAC was asked to identify essential elements for supporting high performance and provision of high quality early intervention Part C services as determined by the Annual Performance Review (APR) required under IDEA. To respond, NECTAC interviewed one state and conducted a focus group with four other states that have consistently met requirements on the APR indicators and are maintaining effective, efficient practices. Additionally, the NECTAC review of states' APR early childhood indicators and technical assistance experience also helped inform the identification of commonalities across states that could be considered essential elements of a high performing Part C system.