The Conversion of Enrollment Slots from Head Start to Early Head Start (HS2EHS) project examines how and why Head Start grant recipients prepare for and engage in enrollment conversions and aims to identify facilitators and barriers to the provision of high-quality Early Head Start services that meet community needs. One goal of the project is to describe the program and community characteristics of grant recipients that convert enrollment slots from Head Start to Early Head Start. To this end, this brief aims to describe (a) the characteristics of Head Start grant recipients that convert enrollment slots; and (b) the characteristics of grant recipients’ applications to OHS to convert enrollment slots. (author abstract)