This report, prepared for the U.S. Department of Education’s Office of Innovation and Improvement, highlights the accomplishments of and challenges facing the charter school sector nationwide. Outlining a vision in which charter schools provide high-quality educational options for students and families, the report calls for policy environments, charter support organizations, and authorizers that work toward improving the quality of all charters and closing those that do not live up to their promise of providing a high-quality educational choice. The briefing builds on the National Charter School Policy Forum held May 5, 2008 in Washington, D.C., which gathered more than 100 leaders from the charter sector including individuals from philanthropic foundations, charter and education management organizations, nonprofits, and other charter sector advocates.