This guidance is intended to assist State educational agencies (SEAs), local educational agencies (LEAs), and schools in understanding, implementing, and expanding preschool programs supported with funds under Title I, Part A (Title I) of the Elementary and Secondary Education Act of 1965 (ESEA). Guidance on this issue was originally published in October 2012. Following the passage of the Every Student Succeeds Act (ESSA) in December 2015, which amended the ESEA, the U.S. Department of Education (Department) formally rescinded the earlier guidance. (author abstract)