The Evaluation of the Comprehensive Technical Assistance Centers 2007 (CTAC Evalution 2007) is a study of the Evaluation of the Comprehensive Technical Assistance Centers (CTAC Evaluation) program. CTAC Evaluation 2007 (https://ies.ed.gov/ncee/projects/evaluation/other_techcenters05.asp) includes cross-sectional surveys, cross-sectional interviews, and ratings of Center products that are designed to examine the Comprehensive Technical Assistance Centers (CTAC) program, a Federally funded program that provides technical assistance to states in connection with the No Child Left Behind Act (NCLB). Specifically, the study examines Center objectives and activities and assesses the quality of Center products. The study was conducted using surveys and interviews of State Education Agencies (SEAs), project participants, and Center staff. The study includes a sample of Center projects for review, a sample of project participants (response rate between 73% and 76%), and a census of SEAs (response rate of 90%). Key statistics produced from CTAC Evaluation 2007 are about the quality, relevance, and usefulness of Center projects and descriptive statistics about Center operations.