This brief presents select findings from the "Conversion of Enrollment Slots from Head Start to Early Head Start (HS2EHS) Case Studies," six case studies of grant recipients that converted enrollment slots from Head Start to Early Head Start in 2021. This brief focuses on preparing to "deliver new or expanded Early Head Start Services." The full report includes findings pertaining to the entire conversion process from start to finish. Specifically, this brief addresses the following research questions: (1) How do grant recipients plan for Early Head Start service implementation?; (2) How do grant recipients plan for workforce-related changes that are needed to serve infants, toddlers, and pregnant women?; (3) What facilitates successful planning for conversion?; (4) What barriers do grant recipients face when preparing for conversion?; and (5) What is the role of the Office of Head Start Regional Offices in supporting grant recipients preparing to implement a conversion?