Vermont passed universal prekindergarten (preK) legislation in 2014 (Act 166) in an effort to increase access to quality preK programs for all young children in the state. Act 166 provides state funded preK to all olds (and to 5 year olds who are not eligible for kindergarten). Families can enroll their children at no cost in any prequalified preK program across the state regardless of location. To better understand implementation of Act 166, Vermont requested a study that describes the relationship between the characteristics and location of preK children and their enrollment by type of preK program (public school program within or outside the boundaries of a child's local education agency and private childcare center or family childcare home within or outside the boundaries of a child's local education agency) and state assessed program quality. The study found that in 2016/17, the first year of full implementation, preK children with an individualized education program and children eligible for the national school lunch program were more likely than their counterparts to be enrolled in a public school program and in a program with a higher quality rating. While most children were enrolled in a program within the boundaries of their local education agency, that was more likely for children with an individualized education program and children eligible for the national school lunch program. This study brief presents an overview of the study. [For the full report, see ED602006; for the appendixes, see ED602009; and for the study snapshot, see ED602008.]