This report identifies and analyzes legal, regulatory, and policy barriers to redesigning high schools in California. In an effort to identify legal, regulatory, and policy barriers to the creation and successful operation of redesigned high schools in California, the Center on Reinventing Public Education (CRPE) staff interviewed high school principals, teachers, union officials, state and district policymakers, reform advocates, and others involved in high school redesign work in California. These interviews were structured to identify barriers to school reform, as perceived by educators on the front lines. CRPE staff then analyzed relevant laws and regulations to determine how valid these perceptions were. Both state and federal laws were analyzed, including the California Education Code and the federal No Child Left Behind statute. Collective bargaining agreements, as well as policy statements and speeches by state education officials, were also examined. This report presents the results of the analysis of perceived barriers to high school redesign and impediments located in federal and state statutes and regulations, as well as local district policies. An appendix presents: (1) Early college high school issues; and (2) Acknowledgments. (Contains 73 footnotes.)