This report is an assessment of the progress New Jersey has made in implementing the Abbott preschool program at the 15-year mark. We analyze preschool enrollment trends in the Abbott districts to determine whether districts are meeting the NJDOE's target of at least 90% enrollment of all eligible children in those communities. Of particular interest is district success in enrolling both three- and four-year-olds, given evidence demonstrating the academic benefit of two years of preschool. We also provide updated data on the planned, but as yet unimplemented, statewide expansion of high-quality preschool to all of New Jersey's low-income children under the SFRA. (author abstract)